Back End Web Development Flashcards
1
Q
What does the Node.js fs.readFile function do?
A
It is used to {description}.
2
Q
What does the Node.js path.join function do?
A
It is used to {description}.
3
Q
What does the Node.js http.createServer function do?
A
It is used to {description}.
4
Q
What does the Node.js buffer.from function do?
A
It is used to {description}.
5
Q
What does the Node.js process.nextTick function do?
A
It is used to {description}.
6
Q
What does the Node.js fs.readFile function do?
A
It is used to {description}.
7
Q
What does the Node.js path.join function do?
A
It is used to {description}.
8
Q
What does the Node.js http.createServer function do?
A
It is used to {description}.
9
Q
What does the Node.js buffer.from function do?
A
It is used to {description}.
10
Q
What does the Node.js process.nextTick function do?
A
It is used to {description}.
11
Q
What does the Node.js fs.readFile function do?
A
It is used to {description}.
12
Q
What does the Node.js path.join function do?
A
It is used to {description}.
13
Q
What does the Node.js http.createServer function do?
A
It is used to {description}.
14
Q
What does the Node.js buffer.from function do?
A
It is used to {description}.
15
Q
What does the Node.js process.nextTick function do?
A
It is used to {description}.
16
Q
What does the Node.js fs.readFile function do?
A
It is used to {description}.
17
Q
What does the Node.js path.join function do?
A
It is used to {description}.
18
Q
What does the Node.js http.createServer function do?
A
It is used to {description}.
19
Q
What does the Node.js buffer.from function do?
A
It is used to {description}.
20
Q
What does the Node.js process.nextTick function do?
A
It is used to {description}.
21
Q
What does the Node.js fs.readFile function do?
A
It is used to {description}.
22
Q
What does the Node.js path.join function do?
A
It is used to {description}.
23
Q
What does the Node.js http.createServer function do?
A
It is used to {description}.
24
Q
What does the Node.js buffer.from function do?
A
It is used to {description}.
25
What does the Node.js process.nextTick function do?
It is used to {description}.
26
What does the Node.js fs.readFile function do?
It is used to {description}.
27
What does the Node.js path.join function do?
It is used to {description}.
28
What does the Node.js http.createServer function do?
It is used to {description}.
29
What does the Node.js buffer.from function do?
It is used to {description}.
30
What does the Node.js process.nextTick function do?
It is used to {description}.
31
What does the Node.js fs.readFile function do?
It is used to {description}.
32
What does the Node.js path.join function do?
It is used to {description}.
33
What does the Node.js http.createServer function do?
It is used to {description}.
34
What does the Node.js buffer.from function do?
It is used to {description}.
35
What does the Node.js process.nextTick function do?
It is used to {description}.
36
What does the Node.js fs.readFile function do?
It is used to {description}.
37
What does the Node.js path.join function do?
It is used to {description}.
38
What does the Node.js http.createServer function do?
It is used to {description}.
39
What does the Node.js buffer.from function do?
It is used to {description}.
40
What does the Node.js process.nextTick function do?
It is used to {description}.
41
What does the Node.js fs.readFile function do?
It is used to {description}.
42
What does the Node.js path.join function do?
It is used to {description}.
43
What does the Node.js http.createServer function do?
It is used to {description}.
44
What does the Node.js buffer.from function do?
It is used to {description}.
45
What does the Node.js process.nextTick function do?
It is used to {description}.
46
What does the Node.js fs.readFile function do?
It is used to {description}.
47
What does the Node.js path.join function do?
It is used to {description}.
48
What does the Node.js http.createServer function do?
It is used to {description}.
49
What does the Node.js buffer.from function do?
It is used to {description}.
50
What does the Node.js process.nextTick function do?
It is used to {description}.
51
How do you handle array data with JSON in JavaScript?
You can handle {data_type} data by {method}.
52
How do you handle object data with JSON in JavaScript?
You can handle {data_type} data by {method}.
53
How do you handle date data with JSON in JavaScript?
You can handle {data_type} data by {method}.
54
How do you handle array data with JSON in JavaScript?
You can handle {data_type} data by {method}.
55
How do you handle object data with JSON in JavaScript?
You can handle {data_type} data by {method}.
56
How do you handle date data with JSON in JavaScript?
You can handle {data_type} data by {method}.
57
How do you handle array data with JSON in JavaScript?
You can handle {data_type} data by {method}.
58
How do you handle object data with JSON in JavaScript?
You can handle {data_type} data by {method}.
59
How do you handle date data with JSON in JavaScript?
You can handle {data_type} data by {method}.
60
How do you handle array data with JSON in JavaScript?
You can handle {data_type} data by {method}.
61
How do you handle object data with JSON in JavaScript?
You can handle {data_type} data by {method}.
62
How do you handle date data with JSON in JavaScript?
You can handle {data_type} data by {method}.
63
How do you handle array data with JSON in JavaScript?
You can handle {data_type} data by {method}.
64
How do you handle object data with JSON in JavaScript?
You can handle {data_type} data by {method}.
65
How do you handle date data with JSON in JavaScript?
You can handle {data_type} data by {method}.
66
How do you handle array data with JSON in JavaScript?
You can handle {data_type} data by {method}.
67
How do you handle object data with JSON in JavaScript?
You can handle {data_type} data by {method}.
68
How do you handle date data with JSON in JavaScript?
You can handle {data_type} data by {method}.
69
How do you handle array data with JSON in JavaScript?
You can handle {data_type} data by {method}.
70
How do you handle object data with JSON in JavaScript?
You can handle {data_type} data by {method}.
71
How do you handle date data with JSON in JavaScript?
You can handle {data_type} data by {method}.
72
How do you handle array data with JSON in JavaScript?
You can handle {data_type} data by {method}.
73
How do you handle object data with JSON in JavaScript?
You can handle {data_type} data by {method}.
74
How do you handle date data with JSON in JavaScript?
You can handle {data_type} data by {method}.
75
How do you handle array data with JSON in JavaScript?
You can handle {data_type} data by {method}.
76
How do you handle object data with JSON in JavaScript?
You can handle {data_type} data by {method}.
77
How do you handle date data with JSON in JavaScript?
You can handle {data_type} data by {method}.
78
How do you handle array data with JSON in JavaScript?
You can handle {data_type} data by {method}.
79
How do you handle object data with JSON in JavaScript?
You can handle {data_type} data by {method}.
80
How do you handle date data with JSON in JavaScript?
You can handle {data_type} data by {method}.
81
How do you handle array data with JSON in JavaScript?
You can handle {data_type} data by {method}.
82
How do you handle object data with JSON in JavaScript?
You can handle {data_type} data by {method}.
83
How do you handle date data with JSON in JavaScript?
You can handle {data_type} data by {method}.
84
How do you handle array data with JSON in JavaScript?
You can handle {data_type} data by {method}.
85
How do you handle object data with JSON in JavaScript?
You can handle {data_type} data by {method}.
86
How do you handle date data with JSON in JavaScript?
You can handle {data_type} data by {method}.
87
How do you handle array data with JSON in JavaScript?
You can handle {data_type} data by {method}.
88
How do you handle object data with JSON in JavaScript?
You can handle {data_type} data by {method}.
89
How do you handle date data with JSON in JavaScript?
You can handle {data_type} data by {method}.
90
How do you handle array data with JSON in JavaScript?
You can handle {data_type} data by {method}.
91
How do you handle object data with JSON in JavaScript?
You can handle {data_type} data by {method}.
92
How do you handle date data with JSON in JavaScript?
You can handle {data_type} data by {method}.
93
How do you handle array data with JSON in JavaScript?
You can handle {data_type} data by {method}.
94
How do you handle object data with JSON in JavaScript?
You can handle {data_type} data by {method}.
95
How do you handle date data with JSON in JavaScript?
You can handle {data_type} data by {method}.
96
How do you handle array data with JSON in JavaScript?
You can handle {data_type} data by {method}.
97
How do you handle object data with JSON in JavaScript?
You can handle {data_type} data by {method}.
98
How do you handle date data with JSON in JavaScript?
You can handle {data_type} data by {method}.
99
How do you handle array data with JSON in JavaScript?
You can handle {data_type} data by {method}.
100
How do you handle object data with JSON in JavaScript?
You can handle {data_type} data by {method}.
101
How do you handle date data with JSON in JavaScript?
You can handle {data_type} data by {method}.
102
How do you use middleware for route specific in Express.js?
Middleware functions can be provided as arguments to routes before the final request handler, as in app.get('/user', authMiddleware, function(req, res) {{}}).
103
What is the purpose of Express Router?
Express Router allows you to manage routes under a specific path prefix, making the application modular and more manageable.
104
How do you use middleware for route specific in Express.js?
Middleware functions can be provided as arguments to routes before the final request handler, as in app.get('/user', authMiddleware, function(req, res) {{}}).
105
What is the purpose of Express Router?
Express Router allows you to manage routes under a specific path prefix, making the application modular and more manageable.
106
How do you use middleware for route specific in Express.js?
Middleware functions can be provided as arguments to routes before the final request handler, as in app.get('/user', authMiddleware, function(req, res) {{}}).
107
What is the purpose of Express Router?
Express Router allows you to manage routes under a specific path prefix, making the application modular and more manageable.
108
How do you use middleware for route specific in Express.js?
Middleware functions can be provided as arguments to routes before the final request handler, as in app.get('/user', authMiddleware, function(req, res) {{}}).
109
What is the purpose of Express Router?
Express Router allows you to manage routes under a specific path prefix, making the application modular and more manageable.
110
How do you use middleware for route specific in Express.js?
Middleware functions can be provided as arguments to routes before the final request handler, as in app.get('/user', authMiddleware, function(req, res) {{}}).
111
What is the purpose of Express Router?
Express Router allows you to manage routes under a specific path prefix, making the application modular and more manageable.
112
How do you use middleware for route specific in Express.js?
Middleware functions can be provided as arguments to routes before the final request handler, as in app.get('/user', authMiddleware, function(req, res) {{}}).
113
What is the purpose of Express Router?
Express Router allows you to manage routes under a specific path prefix, making the application modular and more manageable.
114
How do you use middleware for route specific in Express.js?
Middleware functions can be provided as arguments to routes before the final request handler, as in app.get('/user', authMiddleware, function(req, res) {{}}).
115
What is the purpose of Express Router?
Express Router allows you to manage routes under a specific path prefix, making the application modular and more manageable.
116
How do you use middleware for route specific in Express.js?
Middleware functions can be provided as arguments to routes before the final request handler, as in app.get('/user', authMiddleware, function(req, res) {{}}).
117
What is the purpose of Express Router?
Express Router allows you to manage routes under a specific path prefix, making the application modular and more manageable.
118
How do you use middleware for route specific in Express.js?
Middleware functions can be provided as arguments to routes before the final request handler, as in app.get('/user', authMiddleware, function(req, res) {{}}).
119
What is the purpose of Express Router?
Express Router allows you to manage routes under a specific path prefix, making the application modular and more manageable.
120
How do you use middleware for route specific in Express.js?
Middleware functions can be provided as arguments to routes before the final request handler, as in app.get('/user', authMiddleware, function(req, res) {{}}).
121
What is the purpose of Express Router?
Express Router allows you to manage routes under a specific path prefix, making the application modular and more manageable.
122
What are the best practices for securing a REST API?
Best practices include using HTTPS, implementing authentication and authorization, validating input, and handling errors securely.
123
Explain how GraphQL differs from REST?
GraphQL allows clients to request exactly the data they need, whereas REST APIs require loading entire endpoints.
124
What are the best practices for securing a REST API?
Best practices include using HTTPS, implementing authentication and authorization, validating input, and handling errors securely.
125
Explain how GraphQL differs from REST?
GraphQL allows clients to request exactly the data they need, whereas REST APIs require loading entire endpoints.
126
What are the best practices for securing a REST API?
Best practices include using HTTPS, implementing authentication and authorization, validating input, and handling errors securely.
127
Explain how GraphQL differs from REST?
GraphQL allows clients to request exactly the data they need, whereas REST APIs require loading entire endpoints.
128
What are the best practices for securing a REST API?
Best practices include using HTTPS, implementing authentication and authorization, validating input, and handling errors securely.
129
Explain how GraphQL differs from REST?
GraphQL allows clients to request exactly the data they need, whereas REST APIs require loading entire endpoints.
130
What are the best practices for securing a REST API?
Best practices include using HTTPS, implementing authentication and authorization, validating input, and handling errors securely.
131
Explain how GraphQL differs from REST?
GraphQL allows clients to request exactly the data they need, whereas REST APIs require loading entire endpoints.
132
What are the best practices for securing a REST API?
Best practices include using HTTPS, implementing authentication and authorization, validating input, and handling errors securely.
133
Explain how GraphQL differs from REST?
GraphQL allows clients to request exactly the data they need, whereas REST APIs require loading entire endpoints.
134
What are the best practices for securing a REST API?
Best practices include using HTTPS, implementing authentication and authorization, validating input, and handling errors securely.
135
Explain how GraphQL differs from REST?
GraphQL allows clients to request exactly the data they need, whereas REST APIs require loading entire endpoints.
136
What are the best practices for securing a REST API?
Best practices include using HTTPS, implementing authentication and authorization, validating input, and handling errors securely.
137
Explain how GraphQL differs from REST?
GraphQL allows clients to request exactly the data they need, whereas REST APIs require loading entire endpoints.
138
What are the best practices for securing a REST API?
Best practices include using HTTPS, implementing authentication and authorization, validating input, and handling errors securely.
139
Explain how GraphQL differs from REST?
GraphQL allows clients to request exactly the data they need, whereas REST APIs require loading entire endpoints.
140
What are the best practices for securing a REST API?
Best practices include using HTTPS, implementing authentication and authorization, validating input, and handling errors securely.
141
Explain how GraphQL differs from REST?
GraphQL allows clients to request exactly the data they need, whereas REST APIs require loading entire endpoints.
142
What is a higher-order component in React?
A higher-order component (HOC) is a function that takes a component and returns a new component, commonly used for reusing component logic.
143
How do you optimize performance in React applications?
Optimization can be achieved by using React.memo for memoization, PureComponent, and shouldComponentUpdate lifecycle method to avoid unnecessary re-renders.
144
What is a higher-order component in React?
A higher-order component (HOC) is a function that takes a component and returns a new component, commonly used for reusing component logic.
145
How do you optimize performance in React applications?
Optimization can be achieved by using React.memo for memoization, PureComponent, and shouldComponentUpdate lifecycle method to avoid unnecessary re-renders.
146
What is a higher-order component in React?
A higher-order component (HOC) is a function that takes a component and returns a new component, commonly used for reusing component logic.
147
How do you optimize performance in React applications?
Optimization can be achieved by using React.memo for memoization, PureComponent, and shouldComponentUpdate lifecycle method to avoid unnecessary re-renders.
148
What is a higher-order component in React?
A higher-order component (HOC) is a function that takes a component and returns a new component, commonly used for reusing component logic.
149
How do you optimize performance in React applications?
Optimization can be achieved by using React.memo for memoization, PureComponent, and shouldComponentUpdate lifecycle method to avoid unnecessary re-renders.
150
What is a higher-order component in React?
A higher-order component (HOC) is a function that takes a component and returns a new component, commonly used for reusing component logic.
151
How do you optimize performance in React applications?
Optimization can be achieved by using React.memo for memoization, PureComponent, and shouldComponentUpdate lifecycle method to avoid unnecessary re-renders.
152
What is a higher-order component in React?
A higher-order component (HOC) is a function that takes a component and returns a new component, commonly used for reusing component logic.
153
How do you optimize performance in React applications?
Optimization can be achieved by using React.memo for memoization, PureComponent, and shouldComponentUpdate lifecycle method to avoid unnecessary re-renders.
154
What is a higher-order component in React?
A higher-order component (HOC) is a function that takes a component and returns a new component, commonly used for reusing component logic.
155
How do you optimize performance in React applications?
Optimization can be achieved by using React.memo for memoization, PureComponent, and shouldComponentUpdate lifecycle method to avoid unnecessary re-renders.
156
What is a higher-order component in React?
A higher-order component (HOC) is a function that takes a component and returns a new component, commonly used for reusing component logic.
157
How do you optimize performance in React applications?
Optimization can be achieved by using React.memo for memoization, PureComponent, and shouldComponentUpdate lifecycle method to avoid unnecessary re-renders.
158
What is a higher-order component in React?
A higher-order component (HOC) is a function that takes a component and returns a new component, commonly used for reusing component logic.
159
How do you optimize performance in React applications?
Optimization can be achieved by using React.memo for memoization, PureComponent, and shouldComponentUpdate lifecycle method to avoid unnecessary re-renders.
160
What is a higher-order component in React?
A higher-order component (HOC) is a function that takes a component and returns a new component, commonly used for reusing component logic.
161
How do you optimize performance in React applications?
Optimization can be achieved by using React.memo for memoization, PureComponent, and shouldComponentUpdate lifecycle method to avoid unnecessary re-renders.
162
Describe how to perform a transaction in SQL.
A transaction in SQL is performed by enclosing the SQL commands within BEGIN TRANSACTION and COMMIT commands, ensuring all commands execute successfully or none at all.
163
What is the purpose of an index in SQL databases?
Indexes improve the speed of data retrieval operations by providing quick access to rows in the database tables, based on the index key.
164
Describe how to perform a transaction in SQL.
A transaction in SQL is performed by enclosing the SQL commands within BEGIN TRANSACTION and COMMIT commands, ensuring all commands execute successfully or none at all.
165
What is the purpose of an index in SQL databases?
Indexes improve the speed of data retrieval operations by providing quick access to rows in the database tables, based on the index key.
166
Describe how to perform a transaction in SQL.
A transaction in SQL is performed by enclosing the SQL commands within BEGIN TRANSACTION and COMMIT commands, ensuring all commands execute successfully or none at all.
167
What is the purpose of an index in SQL databases?
Indexes improve the speed of data retrieval operations by providing quick access to rows in the database tables, based on the index key.
168
Describe how to perform a transaction in SQL.
A transaction in SQL is performed by enclosing the SQL commands within BEGIN TRANSACTION and COMMIT commands, ensuring all commands execute successfully or none at all.
169
What is the purpose of an index in SQL databases?
Indexes improve the speed of data retrieval operations by providing quick access to rows in the database tables, based on the index key.
170
Describe how to perform a transaction in SQL.
A transaction in SQL is performed by enclosing the SQL commands within BEGIN TRANSACTION and COMMIT commands, ensuring all commands execute successfully or none at all.
171
What is the purpose of an index in SQL databases?
Indexes improve the speed of data retrieval operations by providing quick access to rows in the database tables, based on the index key.
172
Describe how to perform a transaction in SQL.
A transaction in SQL is performed by enclosing the SQL commands within BEGIN TRANSACTION and COMMIT commands, ensuring all commands execute successfully or none at all.
173
What is the purpose of an index in SQL databases?
Indexes improve the speed of data retrieval operations by providing quick access to rows in the database tables, based on the index key.
174
Describe how to perform a transaction in SQL.
A transaction in SQL is performed by enclosing the SQL commands within BEGIN TRANSACTION and COMMIT commands, ensuring all commands execute successfully or none at all.
175
What is the purpose of an index in SQL databases?
Indexes improve the speed of data retrieval operations by providing quick access to rows in the database tables, based on the index key.
176
Describe how to perform a transaction in SQL.
A transaction in SQL is performed by enclosing the SQL commands within BEGIN TRANSACTION and COMMIT commands, ensuring all commands execute successfully or none at all.
177
What is the purpose of an index in SQL databases?
Indexes improve the speed of data retrieval operations by providing quick access to rows in the database tables, based on the index key.
178
Describe how to perform a transaction in SQL.
A transaction in SQL is performed by enclosing the SQL commands within BEGIN TRANSACTION and COMMIT commands, ensuring all commands execute successfully or none at all.
179
What is the purpose of an index in SQL databases?
Indexes improve the speed of data retrieval operations by providing quick access to rows in the database tables, based on the index key.
180
Describe how to perform a transaction in SQL.
A transaction in SQL is performed by enclosing the SQL commands within BEGIN TRANSACTION and COMMIT commands, ensuring all commands execute successfully or none at all.
181
What is the purpose of an index in SQL databases?
Indexes improve the speed of data retrieval operations by providing quick access to rows in the database tables, based on the index key.
182
What is sharding in MongoDB?
Sharding is the process of distributing data across multiple servers to support very large datasets and high throughput operations.
183
Describe how aggregation works in MongoDB.
Aggregation in MongoDB processes data records and returns computed results, using operations like grouping and averaging.
184
What is sharding in MongoDB?
Sharding is the process of distributing data across multiple servers to support very large datasets and high throughput operations.
185
Describe how aggregation works in MongoDB.
Aggregation in MongoDB processes data records and returns computed results, using operations like grouping and averaging.
186
What is sharding in MongoDB?
Sharding is the process of distributing data across multiple servers to support very large datasets and high throughput operations.
187
Describe how aggregation works in MongoDB.
Aggregation in MongoDB processes data records and returns computed results, using operations like grouping and averaging.
188
What is sharding in MongoDB?
Sharding is the process of distributing data across multiple servers to support very large datasets and high throughput operations.
189
Describe how aggregation works in MongoDB.
Aggregation in MongoDB processes data records and returns computed results, using operations like grouping and averaging.
190
What is sharding in MongoDB?
Sharding is the process of distributing data across multiple servers to support very large datasets and high throughput operations.
191
Describe how aggregation works in MongoDB.
Aggregation in MongoDB processes data records and returns computed results, using operations like grouping and averaging.
192
What is sharding in MongoDB?
Sharding is the process of distributing data across multiple servers to support very large datasets and high throughput operations.
193
Describe how aggregation works in MongoDB.
Aggregation in MongoDB processes data records and returns computed results, using operations like grouping and averaging.
194
What is sharding in MongoDB?
Sharding is the process of distributing data across multiple servers to support very large datasets and high throughput operations.
195
Describe how aggregation works in MongoDB.
Aggregation in MongoDB processes data records and returns computed results, using operations like grouping and averaging.
196
What is sharding in MongoDB?
Sharding is the process of distributing data across multiple servers to support very large datasets and high throughput operations.
197
Describe how aggregation works in MongoDB.
Aggregation in MongoDB processes data records and returns computed results, using operations like grouping and averaging.
198
What is sharding in MongoDB?
Sharding is the process of distributing data across multiple servers to support very large datasets and high throughput operations.
199
Describe how aggregation works in MongoDB.
Aggregation in MongoDB processes data records and returns computed results, using operations like grouping and averaging.
200
What is sharding in MongoDB?
Sharding is the process of distributing data across multiple servers to support very large datasets and high throughput operations.
201
Describe how aggregation works in MongoDB.
Aggregation in MongoDB processes data records and returns computed results, using operations like grouping and averaging.
202
What is the difference between authentication and authorization?
Authentication verifies who the user is, while authorization determines what resources a user can access.
203
Explain the concept of JSON Web Tokens (JWT).
JWT is a compact, URL-safe means of representing claims to be transferred between two parties, commonly used for authentication.
204
What is the difference between authentication and authorization?
Authentication verifies who the user is, while authorization determines what resources a user can access.
205
Explain the concept of JSON Web Tokens (JWT).
JWT is a compact, URL-safe means of representing claims to be transferred between two parties, commonly used for authentication.
206
What is the difference between authentication and authorization?
Authentication verifies who the user is, while authorization determines what resources a user can access.
207
Explain the concept of JSON Web Tokens (JWT).
JWT is a compact, URL-safe means of representing claims to be transferred between two parties, commonly used for authentication.
208
What is the difference between authentication and authorization?
Authentication verifies who the user is, while authorization determines what resources a user can access.
209
Explain the concept of JSON Web Tokens (JWT).
JWT is a compact, URL-safe means of representing claims to be transferred between two parties, commonly used for authentication.
210
What is the difference between authentication and authorization?
Authentication verifies who the user is, while authorization determines what resources a user can access.
211
Explain the concept of JSON Web Tokens (JWT).
JWT is a compact, URL-safe means of representing claims to be transferred between two parties, commonly used for authentication.
212
What is the difference between authentication and authorization?
Authentication verifies who the user is, while authorization determines what resources a user can access.
213
Explain the concept of JSON Web Tokens (JWT).
JWT is a compact, URL-safe means of representing claims to be transferred between two parties, commonly used for authentication.
214
What is the difference between authentication and authorization?
Authentication verifies who the user is, while authorization determines what resources a user can access.
215
Explain the concept of JSON Web Tokens (JWT).
JWT is a compact, URL-safe means of representing claims to be transferred between two parties, commonly used for authentication.
216
What is the difference between authentication and authorization?
Authentication verifies who the user is, while authorization determines what resources a user can access.
217
Explain the concept of JSON Web Tokens (JWT).
JWT is a compact, URL-safe means of representing claims to be transferred between two parties, commonly used for authentication.
218
What is the difference between authentication and authorization?
Authentication verifies who the user is, while authorization determines what resources a user can access.
219
Explain the concept of JSON Web Tokens (JWT).
JWT is a compact, URL-safe means of representing claims to be transferred between two parties, commonly used for authentication.
220
What is the difference between authentication and authorization?
Authentication verifies who the user is, while authorization determines what resources a user can access.
221
Explain the concept of JSON Web Tokens (JWT).
JWT is a compact, URL-safe means of representing claims to be transferred between two parties, commonly used for authentication.
222
Explain the concept of ACID properties in DBMS.
ACID stands for Atomicity, Consistency, Isolation, Durability and is essential for database reliability.
223
Explain the concept of data warehousing in DBMS.
Data warehousing involves collecting and managing data from varied sources to provide meaningful business insights.
224
Explain the concept of database normalization in DBMS.
Database normalization is the process of organizing data to minimize redundancy and improve data integrity.
225
Explain the concept of ACID properties in DBMS.
ACID stands for Atomicity, Consistency, Isolation, Durability and is essential for database reliability.
226
Explain the concept of data warehousing in DBMS.
Data warehousing involves collecting and managing data from varied sources to provide meaningful business insights.
227
Explain the concept of database normalization in DBMS.
Database normalization is the process of organizing data to minimize redundancy and improve data integrity.
228
Explain the concept of ACID properties in DBMS.
ACID stands for Atomicity, Consistency, Isolation, Durability and is essential for database reliability.
229
Explain the concept of data warehousing in DBMS.
Data warehousing involves collecting and managing data from varied sources to provide meaningful business insights.
230
Explain the concept of database normalization in DBMS.
Database normalization is the process of organizing data to minimize redundancy and improve data integrity.
231
Explain the concept of ACID properties in DBMS.
ACID stands for Atomicity, Consistency, Isolation, Durability and is essential for database reliability.
232
Explain the concept of data warehousing in DBMS.
Data warehousing involves collecting and managing data from varied sources to provide meaningful business insights.
233
Explain the concept of database normalization in DBMS.
Database normalization is the process of organizing data to minimize redundancy and improve data integrity.
234
Explain the concept of ACID properties in DBMS.
ACID stands for Atomicity, Consistency, Isolation, Durability and is essential for database reliability.
235
Explain the concept of data warehousing in DBMS.
Data warehousing involves collecting and managing data from varied sources to provide meaningful business insights.
236
Explain the concept of database normalization in DBMS.
Database normalization is the process of organizing data to minimize redundancy and improve data integrity.
237
Explain the concept of ACID properties in DBMS.
ACID stands for Atomicity, Consistency, Isolation, Durability and is essential for database reliability.
238
Explain the concept of data warehousing in DBMS.
Data warehousing involves collecting and managing data from varied sources to provide meaningful business insights.
239
Explain the concept of database normalization in DBMS.
Database normalization is the process of organizing data to minimize redundancy and improve data integrity.
240
Explain the concept of ACID properties in DBMS.
ACID stands for Atomicity, Consistency, Isolation, Durability and is essential for database reliability.
241
Explain the concept of data warehousing in DBMS.
Data warehousing involves collecting and managing data from varied sources to provide meaningful business insights.
242
Explain the concept of database normalization in DBMS.
Database normalization is the process of organizing data to minimize redundancy and improve data integrity.
243
Explain the concept of ACID properties in DBMS.
ACID stands for Atomicity, Consistency, Isolation, Durability and is essential for database reliability.
244
Explain the concept of data warehousing in DBMS.
Data warehousing involves collecting and managing data from varied sources to provide meaningful business insights.
245
Explain the concept of database normalization in DBMS.
Database normalization is the process of organizing data to minimize redundancy and improve data integrity.
246
Explain the concept of ACID properties in DBMS.
ACID stands for Atomicity, Consistency, Isolation, Durability and is essential for database reliability.
247
Explain the concept of data warehousing in DBMS.
Data warehousing involves collecting and managing data from varied sources to provide meaningful business insights.
248
Explain the concept of database normalization in DBMS.
Database normalization is the process of organizing data to minimize redundancy and improve data integrity.
249
Explain the concept of ACID properties in DBMS.
ACID stands for Atomicity, Consistency, Isolation, Durability and is essential for database reliability.
250
Explain the concept of data warehousing in DBMS.
Data warehousing involves collecting and managing data from varied sources to provide meaningful business insights.
251
Explain the concept of database normalization in DBMS.
Database normalization is the process of organizing data to minimize redundancy and improve data integrity.
252
Explain the concept of ACID properties in DBMS.
ACID stands for Atomicity, Consistency, Isolation, Durability and is essential for database reliability.
253
Explain the concept of data warehousing in DBMS.
Data warehousing involves collecting and managing data from varied sources to provide meaningful business insights.
254
Explain the concept of database normalization in DBMS.
Database normalization is the process of organizing data to minimize redundancy and improve data integrity.
255
Explain the concept of ACID properties in DBMS.
ACID stands for Atomicity, Consistency, Isolation, Durability and is essential for database reliability.
256
Explain the concept of data warehousing in DBMS.
Data warehousing involves collecting and managing data from varied sources to provide meaningful business insights.
257
Explain the concept of database normalization in DBMS.
Database normalization is the process of organizing data to minimize redundancy and improve data integrity.
258
Explain the concept of ACID properties in DBMS.
ACID stands for Atomicity, Consistency, Isolation, Durability and is essential for database reliability.
259
Explain the concept of data warehousing in DBMS.
Data warehousing involves collecting and managing data from varied sources to provide meaningful business insights.
260
Explain the concept of database normalization in DBMS.
Database normalization is the process of organizing data to minimize redundancy and improve data integrity.
261
Explain the concept of ACID properties in DBMS.
ACID stands for Atomicity, Consistency, Isolation, Durability and is essential for database reliability.
262
Explain the concept of data warehousing in DBMS.
Data warehousing involves collecting and managing data from varied sources to provide meaningful business insights.
263
Explain the concept of database normalization in DBMS.
Database normalization is the process of organizing data to minimize redundancy and improve data integrity.
264
Explain the concept of ACID properties in DBMS.
ACID stands for Atomicity, Consistency, Isolation, Durability and is essential for database reliability.
265
Explain the concept of data warehousing in DBMS.
Data warehousing involves collecting and managing data from varied sources to provide meaningful business insights.
266
Explain the concept of database normalization in DBMS.
Database normalization is the process of organizing data to minimize redundancy and improve data integrity.
267
Explain the concept of ACID properties in DBMS.
ACID stands for Atomicity, Consistency, Isolation, Durability and is essential for database reliability.
268
Explain the concept of data warehousing in DBMS.
Data warehousing involves collecting and managing data from varied sources to provide meaningful business insights.
269
Explain the concept of database normalization in DBMS.
Database normalization is the process of organizing data to minimize redundancy and improve data integrity.
270
Explain the concept of ACID properties in DBMS.
ACID stands for Atomicity, Consistency, Isolation, Durability and is essential for database reliability.
271
Explain the concept of data warehousing in DBMS.
Data warehousing involves collecting and managing data from varied sources to provide meaningful business insights.
272
Explain the concept of database normalization in DBMS.
Database normalization is the process of organizing data to minimize redundancy and improve data integrity.
273
How do you deploy an application on Heroku?
You deploy an application on Heroku by pushing code to a remote repository using Git, then Heroku builds and runs the application.
274
What are GitHub Pages good for?
GitHub Pages are ideal for hosting static websites such as portfolios, project documentation, and blogs, directly from a GitHub repository.
275
How do you deploy an application on Heroku?
You deploy an application on Heroku by pushing code to a remote repository using Git, then Heroku builds and runs the application.
276
What are GitHub Pages good for?
GitHub Pages are ideal for hosting static websites such as portfolios, project documentation, and blogs, directly from a GitHub repository.
277
How do you deploy an application on Heroku?
You deploy an application on Heroku by pushing code to a remote repository using Git, then Heroku builds and runs the application.
278
What are GitHub Pages good for?
GitHub Pages are ideal for hosting static websites such as portfolios, project documentation, and blogs, directly from a GitHub repository.
279
How do you deploy an application on Heroku?
You deploy an application on Heroku by pushing code to a remote repository using Git, then Heroku builds and runs the application.
280
What are GitHub Pages good for?
GitHub Pages are ideal for hosting static websites such as portfolios, project documentation, and blogs, directly from a GitHub repository.
281
How do you deploy an application on Heroku?
You deploy an application on Heroku by pushing code to a remote repository using Git, then Heroku builds and runs the application.
282
What are GitHub Pages good for?
GitHub Pages are ideal for hosting static websites such as portfolios, project documentation, and blogs, directly from a GitHub repository.
283
How do you deploy an application on Heroku?
You deploy an application on Heroku by pushing code to a remote repository using Git, then Heroku builds and runs the application.
284
What are GitHub Pages good for?
GitHub Pages are ideal for hosting static websites such as portfolios, project documentation, and blogs, directly from a GitHub repository.
285
How do you deploy an application on Heroku?
You deploy an application on Heroku by pushing code to a remote repository using Git, then Heroku builds and runs the application.
286
What are GitHub Pages good for?
GitHub Pages are ideal for hosting static websites such as portfolios, project documentation, and blogs, directly from a GitHub repository.
287
How do you deploy an application on Heroku?
You deploy an application on Heroku by pushing code to a remote repository using Git, then Heroku builds and runs the application.
288
What are GitHub Pages good for?
GitHub Pages are ideal for hosting static websites such as portfolios, project documentation, and blogs, directly from a GitHub repository.
289
How do you deploy an application on Heroku?
You deploy an application on Heroku by pushing code to a remote repository using Git, then Heroku builds and runs the application.
290
What are GitHub Pages good for?
GitHub Pages are ideal for hosting static websites such as portfolios, project documentation, and blogs, directly from a GitHub repository.
291
How do you deploy an application on Heroku?
You deploy an application on Heroku by pushing code to a remote repository using Git, then Heroku builds and runs the application.
292
What are GitHub Pages good for?
GitHub Pages are ideal for hosting static websites such as portfolios, project documentation, and blogs, directly from a GitHub repository.
293
How do you deploy an application on Heroku?
You deploy an application on Heroku by pushing code to a remote repository using Git, then Heroku builds and runs the application.
294
What are GitHub Pages good for?
GitHub Pages are ideal for hosting static websites such as portfolios, project documentation, and blogs, directly from a GitHub repository.
295
How do you deploy an application on Heroku?
You deploy an application on Heroku by pushing code to a remote repository using Git, then Heroku builds and runs the application.
296
What are GitHub Pages good for?
GitHub Pages are ideal for hosting static websites such as portfolios, project documentation, and blogs, directly from a GitHub repository.
297
How do you deploy an application on Heroku?
You deploy an application on Heroku by pushing code to a remote repository using Git, then Heroku builds and runs the application.
298
What are GitHub Pages good for?
GitHub Pages are ideal for hosting static websites such as portfolios, project documentation, and blogs, directly from a GitHub repository.
299
How do you deploy an application on Heroku?
You deploy an application on Heroku by pushing code to a remote repository using Git, then Heroku builds and runs the application.
300
What are GitHub Pages good for?
GitHub Pages are ideal for hosting static websites such as portfolios, project documentation, and blogs, directly from a GitHub repository.
301
How do you deploy an application on Heroku?
You deploy an application on Heroku by pushing code to a remote repository using Git, then Heroku builds and runs the application.
302
What are GitHub Pages good for?
GitHub Pages are ideal for hosting static websites such as portfolios, project documentation, and blogs, directly from a GitHub repository.
303
How does OAuth 2.0 enhance security for web applications?
OAuth 2.0 enhances security by providing a framework for token-based authentication and authorization, allowing services to grant access tokens without exposing user credentials.
304
What are the main roles in an OAuth 2.0 flow?
The main roles in OAuth 2.0 include the resource owner, client, authorization server, and resource server.
305
How does OAuth 2.0 enhance security for web applications?
OAuth 2.0 enhances security by providing a framework for token-based authentication and authorization, allowing services to grant access tokens without exposing user credentials.
306
What are the main roles in an OAuth 2.0 flow?
The main roles in OAuth 2.0 include the resource owner, client, authorization server, and resource server.
307
How does OAuth 2.0 enhance security for web applications?
OAuth 2.0 enhances security by providing a framework for token-based authentication and authorization, allowing services to grant access tokens without exposing user credentials.
308
What are the main roles in an OAuth 2.0 flow?
The main roles in OAuth 2.0 include the resource owner, client, authorization server, and resource server.
309
How does OAuth 2.0 enhance security for web applications?
OAuth 2.0 enhances security by providing a framework for token-based authentication and authorization, allowing services to grant access tokens without exposing user credentials.
310
What are the main roles in an OAuth 2.0 flow?
The main roles in OAuth 2.0 include the resource owner, client, authorization server, and resource server.
311
How does OAuth 2.0 enhance security for web applications?
OAuth 2.0 enhances security by providing a framework for token-based authentication and authorization, allowing services to grant access tokens without exposing user credentials.
312
What are the main roles in an OAuth 2.0 flow?
The main roles in OAuth 2.0 include the resource owner, client, authorization server, and resource server.
313
How does OAuth 2.0 enhance security for web applications?
OAuth 2.0 enhances security by providing a framework for token-based authentication and authorization, allowing services to grant access tokens without exposing user credentials.
314
What are the main roles in an OAuth 2.0 flow?
The main roles in OAuth 2.0 include the resource owner, client, authorization server, and resource server.
315
How does OAuth 2.0 enhance security for web applications?
OAuth 2.0 enhances security by providing a framework for token-based authentication and authorization, allowing services to grant access tokens without exposing user credentials.
316
What are the main roles in an OAuth 2.0 flow?
The main roles in OAuth 2.0 include the resource owner, client, authorization server, and resource server.
317
How does OAuth 2.0 enhance security for web applications?
OAuth 2.0 enhances security by providing a framework for token-based authentication and authorization, allowing services to grant access tokens without exposing user credentials.
318
What are the main roles in an OAuth 2.0 flow?
The main roles in OAuth 2.0 include the resource owner, client, authorization server, and resource server.
319
How does OAuth 2.0 enhance security for web applications?
OAuth 2.0 enhances security by providing a framework for token-based authentication and authorization, allowing services to grant access tokens without exposing user credentials.
320
What are the main roles in an OAuth 2.0 flow?
The main roles in OAuth 2.0 include the resource owner, client, authorization server, and resource server.
321
How does OAuth 2.0 enhance security for web applications?
OAuth 2.0 enhances security by providing a framework for token-based authentication and authorization, allowing services to grant access tokens without exposing user credentials.
322
What are the main roles in an OAuth 2.0 flow?
The main roles in OAuth 2.0 include the resource owner, client, authorization server, and resource server.
323
What is the use of the http module in Node.js?
The http module is used for creating HTTP servers.
324
What is the use of the https module in Node.js?
The https module is used for creating HTTPS servers with SSL/TLS.
325
What is the use of the os module in Node.js?
The os module is used for providing basic operating-system related utility functions.
326
What is the use of the path module in Node.js?
The path module is used for managing file and directory paths.
327
What is the use of the crypto module in Node.js?
The crypto module is used for handling cryptography functionalities.
328
What is the use of the http module in Node.js?
The http module is used for creating HTTP servers.
329
What is the use of the https module in Node.js?
The https module is used for creating HTTPS servers with SSL/TLS.
330
What is the use of the os module in Node.js?
The os module is used for providing basic operating-system related utility functions.
331
What is the use of the path module in Node.js?
The path module is used for managing file and directory paths.
332
What is the use of the crypto module in Node.js?
The crypto module is used for handling cryptography functionalities.
333
What is the use of the http module in Node.js?
The http module is used for creating HTTP servers.
334
What is the use of the https module in Node.js?
The https module is used for creating HTTPS servers with SSL/TLS.
335
What is the use of the os module in Node.js?
The os module is used for providing basic operating-system related utility functions.
336
What is the use of the path module in Node.js?
The path module is used for managing file and directory paths.
337
What is the use of the crypto module in Node.js?
The crypto module is used for handling cryptography functionalities.
338
What is the use of the http module in Node.js?
The http module is used for creating HTTP servers.
339
What is the use of the https module in Node.js?
The https module is used for creating HTTPS servers with SSL/TLS.
340
What is the use of the os module in Node.js?
The os module is used for providing basic operating-system related utility functions.
341
What is the use of the path module in Node.js?
The path module is used for managing file and directory paths.
342
What is the use of the crypto module in Node.js?
The crypto module is used for handling cryptography functionalities.
343
What is the use of the http module in Node.js?
The http module is used for creating HTTP servers.
344
What is the use of the https module in Node.js?
The https module is used for creating HTTPS servers with SSL/TLS.
345
What is the use of the os module in Node.js?
The os module is used for providing basic operating-system related utility functions.
346
What is the use of the path module in Node.js?
The path module is used for managing file and directory paths.
347
What is the use of the crypto module in Node.js?
The crypto module is used for handling cryptography functionalities.
348
What is the use of the http module in Node.js?
The http module is used for creating HTTP servers.
349
What is the use of the https module in Node.js?
The https module is used for creating HTTPS servers with SSL/TLS.
350
What is the use of the os module in Node.js?
The os module is used for providing basic operating-system related utility functions.
351
What is the use of the path module in Node.js?
The path module is used for managing file and directory paths.
352
What is the use of the crypto module in Node.js?
The crypto module is used for handling cryptography functionalities.
353
What is the use of the http module in Node.js?
The http module is used for creating HTTP servers.
354
What is the use of the https module in Node.js?
The https module is used for creating HTTPS servers with SSL/TLS.
355
What is the use of the os module in Node.js?
The os module is used for providing basic operating-system related utility functions.
356
What is the use of the path module in Node.js?
The path module is used for managing file and directory paths.
357
What is the use of the crypto module in Node.js?
The crypto module is used for handling cryptography functionalities.
358
What is the use of the http module in Node.js?
The http module is used for creating HTTP servers.
359
What is the use of the https module in Node.js?
The https module is used for creating HTTPS servers with SSL/TLS.
360
What is the use of the os module in Node.js?
The os module is used for providing basic operating-system related utility functions.
361
What is the use of the path module in Node.js?
The path module is used for managing file and directory paths.
362
What is the use of the crypto module in Node.js?
The crypto module is used for handling cryptography functionalities.
363
What is the use of the http module in Node.js?
The http module is used for creating HTTP servers.
364
What is the use of the https module in Node.js?
The https module is used for creating HTTPS servers with SSL/TLS.
365
What is the use of the os module in Node.js?
The os module is used for providing basic operating-system related utility functions.
366
What is the use of the path module in Node.js?
The path module is used for managing file and directory paths.
367
What is the use of the crypto module in Node.js?
The crypto module is used for handling cryptography functionalities.
368
What is the use of the http module in Node.js?
The http module is used for creating HTTP servers.
369
What is the use of the https module in Node.js?
The https module is used for creating HTTPS servers with SSL/TLS.
370
What is the use of the os module in Node.js?
The os module is used for providing basic operating-system related utility functions.
371
What is the use of the path module in Node.js?
The path module is used for managing file and directory paths.
372
What is the use of the crypto module in Node.js?
The crypto module is used for handling cryptography functionalities.
373
Describe how React.js optimizes rendering with keys.
keys helps optimize rendering by helping React identify which items have changed, are added, or are removed.
374
Describe how React.js optimizes rendering with React.memo.
React.memo helps optimize rendering by memoizing components to prevent unnecessary re-renders for the same props.
375
Describe how React.js optimizes rendering with useCallback.
useCallback helps optimize rendering by memoizing callbacks to prevent re-creation on every render.
376
Describe how React.js optimizes rendering with keys.
keys helps optimize rendering by helping React identify which items have changed, are added, or are removed.
377
Describe how React.js optimizes rendering with React.memo.
React.memo helps optimize rendering by memoizing components to prevent unnecessary re-renders for the same props.
378
Describe how React.js optimizes rendering with useCallback.
useCallback helps optimize rendering by memoizing callbacks to prevent re-creation on every render.
379
Describe how React.js optimizes rendering with keys.
keys helps optimize rendering by helping React identify which items have changed, are added, or are removed.
380
Describe how React.js optimizes rendering with React.memo.
React.memo helps optimize rendering by memoizing components to prevent unnecessary re-renders for the same props.
381
Describe how React.js optimizes rendering with useCallback.
useCallback helps optimize rendering by memoizing callbacks to prevent re-creation on every render.
382
Describe how React.js optimizes rendering with keys.
keys helps optimize rendering by helping React identify which items have changed, are added, or are removed.
383
Describe how React.js optimizes rendering with React.memo.
React.memo helps optimize rendering by memoizing components to prevent unnecessary re-renders for the same props.
384
Describe how React.js optimizes rendering with useCallback.
useCallback helps optimize rendering by memoizing callbacks to prevent re-creation on every render.
385
Describe how React.js optimizes rendering with keys.
keys helps optimize rendering by helping React identify which items have changed, are added, or are removed.
386
Describe how React.js optimizes rendering with React.memo.
React.memo helps optimize rendering by memoizing components to prevent unnecessary re-renders for the same props.
387
Describe how React.js optimizes rendering with useCallback.
useCallback helps optimize rendering by memoizing callbacks to prevent re-creation on every render.
388
Describe how React.js optimizes rendering with keys.
keys helps optimize rendering by helping React identify which items have changed, are added, or are removed.
389
Describe how React.js optimizes rendering with React.memo.
React.memo helps optimize rendering by memoizing components to prevent unnecessary re-renders for the same props.
390
Describe how React.js optimizes rendering with useCallback.
useCallback helps optimize rendering by memoizing callbacks to prevent re-creation on every render.
391
Describe how React.js optimizes rendering with keys.
keys helps optimize rendering by helping React identify which items have changed, are added, or are removed.
392
Describe how React.js optimizes rendering with React.memo.
React.memo helps optimize rendering by memoizing components to prevent unnecessary re-renders for the same props.
393
Describe how React.js optimizes rendering with useCallback.
useCallback helps optimize rendering by memoizing callbacks to prevent re-creation on every render.
394
Describe how React.js optimizes rendering with keys.
keys helps optimize rendering by helping React identify which items have changed, are added, or are removed.
395
Describe how React.js optimizes rendering with React.memo.
React.memo helps optimize rendering by memoizing components to prevent unnecessary re-renders for the same props.
396
Describe how React.js optimizes rendering with useCallback.
useCallback helps optimize rendering by memoizing callbacks to prevent re-creation on every render.
397
Describe how React.js optimizes rendering with keys.
keys helps optimize rendering by helping React identify which items have changed, are added, or are removed.
398
Describe how React.js optimizes rendering with React.memo.
React.memo helps optimize rendering by memoizing components to prevent unnecessary re-renders for the same props.
399
Describe how React.js optimizes rendering with useCallback.
useCallback helps optimize rendering by memoizing callbacks to prevent re-creation on every render.
400
Describe how React.js optimizes rendering with keys.
keys helps optimize rendering by helping React identify which items have changed, are added, or are removed.
401
Describe how React.js optimizes rendering with React.memo.
React.memo helps optimize rendering by memoizing components to prevent unnecessary re-renders for the same props.
402
Describe how React.js optimizes rendering with useCallback.
useCallback helps optimize rendering by memoizing callbacks to prevent re-creation on every render.
403
How does MongoDB handle large data sets?
MongoDB handles large data sets by using sharding to distribute data across multiple servers.
404
How does MongoDB handle data redundancy?
MongoDB handles data redundancy by employing replication to duplicate data across different servers.
405
How does MongoDB handle large data sets?
MongoDB handles large data sets by using sharding to distribute data across multiple servers.
406
How does MongoDB handle data redundancy?
MongoDB handles data redundancy by employing replication to duplicate data across different servers.
407
How does MongoDB handle large data sets?
MongoDB handles large data sets by using sharding to distribute data across multiple servers.
408
How does MongoDB handle data redundancy?
MongoDB handles data redundancy by employing replication to duplicate data across different servers.
409
How does MongoDB handle large data sets?
MongoDB handles large data sets by using sharding to distribute data across multiple servers.
410
How does MongoDB handle data redundancy?
MongoDB handles data redundancy by employing replication to duplicate data across different servers.
411
How does MongoDB handle large data sets?
MongoDB handles large data sets by using sharding to distribute data across multiple servers.
412
How does MongoDB handle data redundancy?
MongoDB handles data redundancy by employing replication to duplicate data across different servers.
413
How does MongoDB handle large data sets?
MongoDB handles large data sets by using sharding to distribute data across multiple servers.
414
How does MongoDB handle data redundancy?
MongoDB handles data redundancy by employing replication to duplicate data across different servers.
415
How does MongoDB handle large data sets?
MongoDB handles large data sets by using sharding to distribute data across multiple servers.
416
How does MongoDB handle data redundancy?
MongoDB handles data redundancy by employing replication to duplicate data across different servers.
417
How does MongoDB handle large data sets?
MongoDB handles large data sets by using sharding to distribute data across multiple servers.
418
How does MongoDB handle data redundancy?
MongoDB handles data redundancy by employing replication to duplicate data across different servers.
419
How does MongoDB handle large data sets?
MongoDB handles large data sets by using sharding to distribute data across multiple servers.
420
How does MongoDB handle data redundancy?
MongoDB handles data redundancy by employing replication to duplicate data across different servers.
421
How does MongoDB handle large data sets?
MongoDB handles large data sets by using sharding to distribute data across multiple servers.
422
How does MongoDB handle data redundancy?
MongoDB handles data redundancy by employing replication to duplicate data across different servers.
423
What are the advantages of using INNER joins in SQL?
INNER joins are used to combine rows from two or more tables based on a related column between them.
424
What are the advantages of using LEFT OUTER joins in SQL?
LEFT OUTER joins are used to include all records from the left table and the matched records from the right table.
425
What are the advantages of using INNER joins in SQL?
INNER joins are used to combine rows from two or more tables based on a related column between them.
426
What are the advantages of using LEFT OUTER joins in SQL?
LEFT OUTER joins are used to include all records from the left table and the matched records from the right table.
427
What are the advantages of using INNER joins in SQL?
INNER joins are used to combine rows from two or more tables based on a related column between them.
428
What are the advantages of using LEFT OUTER joins in SQL?
LEFT OUTER joins are used to include all records from the left table and the matched records from the right table.
429
What are the advantages of using INNER joins in SQL?
INNER joins are used to combine rows from two or more tables based on a related column between them.
430
What are the advantages of using LEFT OUTER joins in SQL?
LEFT OUTER joins are used to include all records from the left table and the matched records from the right table.
431
What are the advantages of using INNER joins in SQL?
INNER joins are used to combine rows from two or more tables based on a related column between them.
432
What are the advantages of using LEFT OUTER joins in SQL?
LEFT OUTER joins are used to include all records from the left table and the matched records from the right table.
433
What are the advantages of using INNER joins in SQL?
INNER joins are used to combine rows from two or more tables based on a related column between them.
434
What are the advantages of using LEFT OUTER joins in SQL?
LEFT OUTER joins are used to include all records from the left table and the matched records from the right table.
435
What are the advantages of using INNER joins in SQL?
INNER joins are used to combine rows from two or more tables based on a related column between them.
436
What are the advantages of using LEFT OUTER joins in SQL?
LEFT OUTER joins are used to include all records from the left table and the matched records from the right table.
437
What are the advantages of using INNER joins in SQL?
INNER joins are used to combine rows from two or more tables based on a related column between them.
438
What are the advantages of using LEFT OUTER joins in SQL?
LEFT OUTER joins are used to include all records from the left table and the matched records from the right table.
439
What are the advantages of using INNER joins in SQL?
INNER joins are used to combine rows from two or more tables based on a related column between them.
440
What are the advantages of using LEFT OUTER joins in SQL?
LEFT OUTER joins are used to include all records from the left table and the matched records from the right table.
441
What are the advantages of using INNER joins in SQL?
INNER joins are used to combine rows from two or more tables based on a related column between them.
442
What are the advantages of using LEFT OUTER joins in SQL?
LEFT OUTER joins are used to include all records from the left table and the matched records from the right table.
443
How does Node.js handle file system operations?
Node.js uses the 'fs' module to perform file operations, providing both synchronous and asynchronous methods.
444
What is the event loop in Node.js?
The event loop in Node.js is what allows Node.js to perform non-blocking I/O operations, despite JavaScript being single-threaded.
445
How does Node.js handle file system operations?
Node.js uses the 'fs' module to perform file operations, providing both synchronous and asynchronous methods.
446
What is the event loop in Node.js?
The event loop in Node.js is what allows Node.js to perform non-blocking I/O operations, despite JavaScript being single-threaded.
447
How does Node.js handle file system operations?
Node.js uses the 'fs' module to perform file operations, providing both synchronous and asynchronous methods.
448
What is the event loop in Node.js?
The event loop in Node.js is what allows Node.js to perform non-blocking I/O operations, despite JavaScript being single-threaded.
449
How does Node.js handle file system operations?
Node.js uses the 'fs' module to perform file operations, providing both synchronous and asynchronous methods.
450
What is the event loop in Node.js?
The event loop in Node.js is what allows Node.js to perform non-blocking I/O operations, despite JavaScript being single-threaded.
451
How does Node.js handle file system operations?
Node.js uses the 'fs' module to perform file operations, providing both synchronous and asynchronous methods.
452
What is the event loop in Node.js?
The event loop in Node.js is what allows Node.js to perform non-blocking I/O operations, despite JavaScript being single-threaded.
453
How does Node.js handle file system operations?
Node.js uses the 'fs' module to perform file operations, providing both synchronous and asynchronous methods.
454
What is the event loop in Node.js?
The event loop in Node.js is what allows Node.js to perform non-blocking I/O operations, despite JavaScript being single-threaded.
455
How does Node.js handle file system operations?
Node.js uses the 'fs' module to perform file operations, providing both synchronous and asynchronous methods.
456
What is the event loop in Node.js?
The event loop in Node.js is what allows Node.js to perform non-blocking I/O operations, despite JavaScript being single-threaded.
457
How does Node.js handle file system operations?
Node.js uses the 'fs' module to perform file operations, providing both synchronous and asynchronous methods.
458
What is the event loop in Node.js?
The event loop in Node.js is what allows Node.js to perform non-blocking I/O operations, despite JavaScript being single-threaded.
459
How does Node.js handle file system operations?
Node.js uses the 'fs' module to perform file operations, providing both synchronous and asynchronous methods.
460
What is the event loop in Node.js?
The event loop in Node.js is what allows Node.js to perform non-blocking I/O operations, despite JavaScript being single-threaded.
461
How does Node.js handle file system operations?
Node.js uses the 'fs' module to perform file operations, providing both synchronous and asynchronous methods.
462
What is the event loop in Node.js?
The event loop in Node.js is what allows Node.js to perform non-blocking I/O operations, despite JavaScript being single-threaded.
463
Describe how to secure SQL databases against injection attacks.
To secure against SQL injection, use parameterized queries, prepared statements, and sanitize user inputs.
464
Explain the concept of API versioning and its importance.
API versioning allows developers to make changes or improvements to the API without disrupting existing clients, managing different versions efficiently.
465
Describe how to secure SQL databases against injection attacks.
To secure against SQL injection, use parameterized queries, prepared statements, and sanitize user inputs.
466
Explain the concept of API versioning and its importance.
API versioning allows developers to make changes or improvements to the API without disrupting existing clients, managing different versions efficiently.
467
Describe how to secure SQL databases against injection attacks.
To secure against SQL injection, use parameterized queries, prepared statements, and sanitize user inputs.
468
Explain the concept of API versioning and its importance.
API versioning allows developers to make changes or improvements to the API without disrupting existing clients, managing different versions efficiently.
469
Describe how to secure SQL databases against injection attacks.
To secure against SQL injection, use parameterized queries, prepared statements, and sanitize user inputs.
470
Explain the concept of API versioning and its importance.
API versioning allows developers to make changes or improvements to the API without disrupting existing clients, managing different versions efficiently.
471
Describe how to secure SQL databases against injection attacks.
To secure against SQL injection, use parameterized queries, prepared statements, and sanitize user inputs.
472
Explain the concept of API versioning and its importance.
API versioning allows developers to make changes or improvements to the API without disrupting existing clients, managing different versions efficiently.
473
Describe how to secure SQL databases against injection attacks.
To secure against SQL injection, use parameterized queries, prepared statements, and sanitize user inputs.
474
Explain the concept of API versioning and its importance.
API versioning allows developers to make changes or improvements to the API without disrupting existing clients, managing different versions efficiently.
475
Describe how to secure SQL databases against injection attacks.
To secure against SQL injection, use parameterized queries, prepared statements, and sanitize user inputs.
476
Explain the concept of API versioning and its importance.
API versioning allows developers to make changes or improvements to the API without disrupting existing clients, managing different versions efficiently.
477
Describe how to secure SQL databases against injection attacks.
To secure against SQL injection, use parameterized queries, prepared statements, and sanitize user inputs.
478
Explain the concept of API versioning and its importance.
API versioning allows developers to make changes or improvements to the API without disrupting existing clients, managing different versions efficiently.
479
Describe how to secure SQL databases against injection attacks.
To secure against SQL injection, use parameterized queries, prepared statements, and sanitize user inputs.
480
Explain the concept of API versioning and its importance.
API versioning allows developers to make changes or improvements to the API without disrupting existing clients, managing different versions efficiently.
481
What is the main benefit of using OAuth in modern web applications?
OAuth provides a secure and standardized way for apps to request and use credentials in a safe manner, without exposing user passwords.
482
Explain how MongoDB ensures data integrity.
MongoDB ensures data integrity through journaling and write acknowledgments, allowing recovery from failures and consistency in data storage.
483
What is the main benefit of using OAuth in modern web applications?
OAuth provides a secure and standardized way for apps to request and use credentials in a safe manner, without exposing user passwords.
484
Explain how MongoDB ensures data integrity.
MongoDB ensures data integrity through journaling and write acknowledgments, allowing recovery from failures and consistency in data storage.
485
What is the main benefit of using OAuth in modern web applications?
OAuth provides a secure and standardized way for apps to request and use credentials in a safe manner, without exposing user passwords.
486
Explain how MongoDB ensures data integrity.
MongoDB ensures data integrity through journaling and write acknowledgments, allowing recovery from failures and consistency in data storage.
487
What is the main benefit of using OAuth in modern web applications?
OAuth provides a secure and standardized way for apps to request and use credentials in a safe manner, without exposing user passwords.
488
Explain how MongoDB ensures data integrity.
MongoDB ensures data integrity through journaling and write acknowledgments, allowing recovery from failures and consistency in data storage.
489
What is the main benefit of using OAuth in modern web applications?
OAuth provides a secure and standardized way for apps to request and use credentials in a safe manner, without exposing user passwords.
490
Explain how MongoDB ensures data integrity.
MongoDB ensures data integrity through journaling and write acknowledgments, allowing recovery from failures and consistency in data storage.
491
What is an event emitter in Node.js?
An event emitter in Node.js is a module that facilitates communication/interaction between objects in Node via events.
492
How can Express.js improve API development?
Express.js simplifies the routing and middleware implementation, making it easier to develop robust APIs.
493
What are promises in JavaScript and how do they benefit Node.js development?
Promises are constructs that represent the eventual completion or failure of an asynchronous operation, simplifying async control flow.
494
Describe token-based authentication in APIs.
Token-based authentication secures APIs by exchanging usernames and passwords for a token, which is then used for future requests.
495
What role does MongoDB's aggregation pipeline play in data processing?
MongoDB's aggregation pipeline processes data records and returns computed results, allowing complex data aggregation tasks.
496
Explain how React's context API can manage state.
React's Context API allows for state management globally across a React app, avoiding prop drilling from parent to child components.
497
Why is Heroku considered a good platform for app deployments?
Heroku is user-friendly, supports multiple programming languages, and integrates easily with development workflows for deploying applications.
498
How do you ensure REST API security?
Ensure REST API security by using HTTPS, authentication, authorization, input validation, and regular security audits.
499
What is schema design in MongoDB?
Schema design in MongoDB involves organizing document structure according to application requirements to optimize performance and scalability.
500
Explain how OAuth 2.0 can be used with social media logins.
OAuth 2.0 allows applications to authenticate users through social media accounts, enabling users to log in using existing social media credentials without creating new passwords.
