Developer Assessment

Question 1

What is object oriented programming languages?

Answer 1

Object-oriented programming (OOP) is a programming paradigm based on the concept of “objects”, which may contain data, in the form of fields, often known as attributes; and code, in the form of procedures, often known as methods. For example, a person is an object which has certain properties such as height, gender, age, etc. It also has certain methods such as move, talk, and so on.

Question 2

Object-oriented programming (OOP) is a programming paradigm based on the concept of “objects”, which may contain data, in the form of fields, often known as attributes; and code, in the form of procedures, often known as methods. For example, a person is an object which has certain properties such as height, gender, age, etc. It also has certain methods such as move, talk, and so on.

Answer 2

What is object oriented programming languages?

Question 3

Four Kinds of Object Oriented Programming Languages

Answer 3

What are the four kinds ? 
Encapsulation. This principle states that all important information is contained inside an object and only select information is exposed. The implementation and state of each object are privately held inside a defined class. Other objects do not have access to this class or the authority to make changes. They are only able to call a list of public functions or methods. This characteristic of data hiding provides greater program security and avoids unintended data corruption.

Abstraction. Objects only reveal internal mechanisms that are relevant for the use of other objects, hiding any unnecessary implementation code. The derived class can have its functionality extended. This concept can help developers more easily make additional changes or additions over time.
Inheritance. Classes can reuse code from other classes. Relationships and subclasses between objects can be assigned, enabling developers to reuse common logic while still maintaining a unique hierarchy. This property of OOP forces a more thorough data analysis, reduces development time and ensures a higher level of accuracy.

Polymorphism. Objects are designed to share behaviors and they can take on more than one form. The program will determine which meaning or usage is necessary for each execution of that object from a parent class, reducing the need to duplicate code. A child class is then created, which extends the functionality of the parent class. Polymorphism allows different types of objects to pass through the same interface.
 Inheritance − The ability to create a new class from an existing class is called Inheritance. Using inheritance, we can create a Child class from a Parent class such that it inherits the properties and methods of the parent class and can have its own additional properties and methods. For example, if we have a class Vehicle that has properties like Color, Price, etc, we can create 2 classes like Bike and Car from it that have those 2 properties and additional properties that are specialized for them like a car has numberOfWindows while a bike cannot. Same is applicable to methods.

Question 4

What are the four kinds ?

Encapsulation. This principle states that all important information is contained inside an object and only select information is exposed. The implementation and state of each object are privately held inside a defined class. Other objects do not have access to this class or the authority to make changes. They are only able to call a list of public functions or methods. This characteristic of data hiding provides greater program security and avoids unintended data corruption.

Abstraction. Objects only reveal internal mechanisms that are relevant for the use of other objects, hiding any unnecessary implementation code. The derived class can have its functionality extended. This concept can help developers more easily make additional changes or additions over time.
Inheritance. Classes can reuse code from other classes. Relationships and subclasses between objects can be assigned, enabling developers to reuse common logic while still maintaining a unique hierarchy. This property of OOP forces a more thorough data analysis, reduces development time and ensures a higher level of accuracy.

Polymorphism. Objects are designed to share behaviors and they can take on more than one form. The program will determine which meaning or usage is necessary for each execution of that object from a parent class, reducing the need to duplicate code. A child class is then created, which extends the functionality of the parent class. Polymorphism allows different types of objects to pass through the same interface.

Inheritance − The ability to create a new class from an existing class is called Inheritance. Using inheritance, we can create a Child class from a Parent class such that it inherits the properties and methods of the parent class and can have its own additional properties and methods. For example, if we have a class Vehicle that has properties like Color, Price, etc, we can create 2 classes like Bike and Car from it that have those 2 properties and additional properties that are specialized for them like a car has numberOfWindows while a bike cannot. Same is applicable to methods.

Answer 4

Four types of Object Oriented Programming

Question 5

Encapsulation

Answer 5

This principle states that all important information is contained inside an object and only select information is exposed. The implementation and state of each object are privately held inside a defined class. Other objects do not have access to this class or the authority to make changes. They are only able to call a list of public functions or methods. This characteristic of data hiding provides greater program security and avoids unintended data corruption.

Question 6

This principle states that all important information is contained inside an object and only select information is exposed. The implementation and state of each object are privately held inside a defined class. Other objects do not have access to this class or the authority to make changes. They are only able to call a list of public functions or methods. This characteristic of data hiding provides greater program security and avoids unintended data corruption.

Answer 6

Encapsulation

Question 7

Abstraction.

Answer 7

Objects only reveal internal mechanisms that are relevant for the use of other objects, hiding any unnecessary implementation code. The derived class can have its functionality extended. This concept can help developers more easily make additional changes or additions over time.
Inheritance. Classes can reuse code from other classes. Relationships and subclasses between objects can be assigned, enabling developers to reuse common logic while still maintaining a unique hierarchy. This property of OOP forces a more thorough data analysis, reduces development time and ensures a higher level of accuracy.

Question 8

Objects only reveal internal mechanisms that are relevant for the use of other objects, hiding any unnecessary implementation code. The derived class can have its functionality extended. This concept can help developers more easily make additional changes or additions over time.
Inheritance. Classes can reuse code from other classes. Relationships and subclasses between objects can be assigned, enabling developers to reuse common logic while still maintaining a unique hierarchy. This property of OOP forces a more thorough data analysis, reduces development time and ensures a higher level of accuracy.

Answer 8

Abstraction

Question 9

Polymorphism

Answer 9

Objects are designed to share behaviors and they can take on more than one form. The program will determine which meaning or usage is necessary for each execution of that object from a parent class, reducing the need to duplicate code. A child class is then created, which extends the functionality of the parent class. Polymorphism allows different types of objects to pass through the same interface.

Question 10

Objects are designed to share behaviors and they can take on more than one form. The program will determine which meaning or usage is necessary for each execution of that object from a parent class, reducing the need to duplicate code. A child class is then created, which extends the functionality of the parent class. Polymorphism allows different types of objects to pass through the same interface.

Answer 10

Polymorphism

Question 11

Inheritance

Answer 11

The ability to create a new class from an existing class is called Inheritance. Using inheritance, we can create a Child class from a Parent class such that it inherits the properties and methods of the parent class and can have its own additional properties and methods. For example, if we have a class Vehicle that has properties like Color, Price, etc, we can create 2 classes like Bike and Car from it that have those 2 properties and additional properties that are specialized for them like a car has numberOfWindows while a bike cannot. Same is applicable to methods.

Question 12

The ability to create a new class from an existing class is called Inheritance. Using inheritance, we can create a Child class from a Parent class such that it inherits the properties and methods of the parent class and can have its own additional properties and methods. For example, if we have a class Vehicle that has properties like Color, Price, etc, we can create 2 classes like Bike and Car from it that have those 2 properties and additional properties that are specialized for them like a car has numberOfWindows while a bike cannot. Same is applicable to methods.

Answer 12

Inheritance

Question 13

SDLC 
Seven Phases of Software Development Life Cycle
Planning
Define Requirements
Design & Prototyping
Software development
Testing 
Deployment 
Operation & Maintenance

Answer 13

SDLC

Question 14

SDLC 
Seven Phases of Software Development Life Cycle
Planning
Define Requirements
Design & Prototyping
Software development
Testing 
Deployment 
Operation & Maintenance

Answer 14

SDLC

Question 15

Where are you at in SDLC

Answer 15

I’ve worked most aspects of the Software Development Life Cycle, for the two websites and other apps I have worked on. With my two most recent projects I am in the development phases.

Question 16

Where are you at in SDLC

Answer 16

I’ve worked most aspects of the Software Development Life Cycle, for the two websites and other apps I have worked on. With my two most recent projects I am in the development phases.

Question 17

Your experience in developing an application

Answer 17

I’ve developed a few apps for clients with 100 Developers and a few websites for other clients including
M and L Electric (Business Website) – Technicians can track sales from their customers with their names. Customers can login to the website and see orders that have been made, mark them as complete. Orders that have been completed will note which tech completed the order.
Community Meme Matching Game (Full Stack Web App) – With over 100 different cards, test your memory in several memorable memes from the show Community!
Other Projects: Small Lakes Casino Virtual Slot Machine, Los Angeles StarGazers Society APOD Web App with NASA API integration, On-demand background color changer for Partnered Twitch streamer, DND Stats/Character generator, dice roller and many more!!

Question 18

I’ve developed a few apps for clients with 100 Developers and a few websites for other clients including
M and L Electric (Business Website) – Technicians can track sales from their customers with their names. Customers can login to the website and see orders that have been made, mark them as complete. Orders that have been completed will note which tech completed the order.
Community Meme Matching Game (Full Stack Web App) – With over 100 different cards, test your memory in several memorable memes from the show Community!
Other Projects: Small Lakes Casino Virtual Slot Machine, Los Angeles StarGazers Society APOD Web App with NASA API integration, On-demand background color changer for Partnered Twitch streamer, DND Stats/Character generator, dice roller and many more!!

Answer 18

Your experience in developing an application

Question 19

Question 1
Which of the following is NOT a data constraint in SQL?
NOT NULL
UNIQUE
DEFAULT
ORIGINAL

Answer 19

D Original

Question 20

What is a constraint in SQL?

Answer 20

Constraint specifies the rule to allow or restrict what data will be stored in a table. The PRIMARY KEY, NOT NULL, and CHECK are the constraints that specify rules for data insertion.

Question 21

Constraint specifies the rule to allow or restrict what data will be stored in a table. The PRIMARY KEY, NOT NULL, and CHECK are the constraints that specify rules for data insertion.

Answer 21

What is a constraint of SQL

Question 22

Question 2
Which of the following is NOT a data type in SQL?
TINYINT
BIGINT
CHAR
STRING

Answer 22

String

Question 23

STRING

Answer 23

Question 2
Which of the following is NOT a data type in SQL?
TINYINT
BIGINT
CHAR
STRING

Question 24

How would we achieve ‘encapsulation’?
by restricting access to the variables within a class, and only allowing access through the methods of their current class

by allowing more access to our attributes

by refactoring code using specialised software

by allowing classes to inherit both attributes and methods

Answer 24

by restricting access to the variables within a class, and only allowing access through the methods of their current class

Question 25

by restricting access to the variables within a class, and only allowing access through the methods of their current class

Answer 25

How would we achieve ‘encapsulation’?

Right Answer: by restricting access to the variables within a class, and only allowing access through the methods of their current class

by allowing more access to our attributes
by refactoring code using specialised software
by allowing classes to inherit both attributes and methods

Question 26

Which of these is NOT an Object-Oriented Programming Principle?

Answer 26

Open/Closed

Question 27

Open/Closed

Answer 27

Which of these is NOT an Object-Oriented Programming Principle?

Question 28

What are Spring Service components used to store?

Answer 28

the main business logic of a Spring Boot application
the controllers for a Spring Boot application
the information about the database for a Spring Boot application
the repository of a Spring Boot application

Question 29

the main business logic of a Spring Boot application
the controllers for a Spring Boot application
the information about the database for a Spring Boot application
the repository of a Spring Boot application

Answer 29

What are Spring Service components used to store?

Question 30

Which of the following would be correct in Java?

Answer 30

for(int i = 0; i <= 10; j++) {

System.out.println(“Hello There!”)

Question 31

for(int i = 0; i <= 10; j++) {

System.out.println(“Hello There!”)

Answer 31

Which of the following would be correct in Java?

Question 32

How could we define what conditionals are in programming?

Answer 32

They allow the developer to check values and make decisions based off the answer of that check

Question 33

They allow the developer to check values and make decisions based off the answer of that check

Answer 33

How could we define what conditionals are in programming?

Question 34

What’s the difference between continuous delivery and continuous deployment?

Answer 34

Continuous deployment puts a greater emphasis on testing automation to check that the application is not broken whenever new commits are integrated into the main branch.

Question 35

Continuous deployment puts a greater emphasis on testing automation to check that the application is not broken whenever new commits are integrated into the main branch.

Answer 35

What’s the difference between continuous delivery and continuous deployment?

Question 36

How can we view all the records within a table?

Answer 36

SELECT * FROM table_name;

Question 37

SELECT * FROM table_name;

Answer 37

How can we view all the records within a table?

Question 38

What is PaaS (Platform as a Service)?

Answer 38

PaaS delivers cloud computing infrastructure, including servers, network, operating systems, and storage, through virtualization technology. These cloud servers are typically provided to the organization through an API or a dashboard, giving PaaS clients complete control over the entire infrastructure.

Question 39

PaaS delivers cloud computing infrastructure, including servers, network, operating systems, and storage, through virtualization technology. These cloud servers are typically provided to the organization through an API or a dashboard, giving PaaS clients complete control over the entire infrastructure.

Answer 39

What is PaaS (Platform as a Service)?

Question 40

What is PaaS (Platform as a Service)?

Answer 40

PaaS delivers cloud computing infrastructure, including servers, network, operating systems, and storage, through virtualization technology. These cloud servers are typically provided to the organization through an API or a dashboard, giving PaaS clients complete control over the entire infrastructure.

Question 41

Which of these is NOT true in Java?
Strings are used for storing text
In technical terms, a string is an array of characters.
Strings are treated as objects in Java.
String is a primitive data type in Java.

Answer 41

String is a primitive data type in Java.

Question 42

Java Facts

Answer 42

Strings are used for storing text
In technical terms, a string is an array of characters.
Strings are treated as objects in Java.

Question 43

There are five SOLID principles in programming. The S in SOLID stands for:

Answer 43

Single Responsibility

Question 44

Single Responsibility

Answer 44

The S in the SOLID Programming acronym

Question 45

The Singleton pattern is one of the most popular design patterns in OOP programming. How would you describe it?

Answer 45

It’s used for single-point-of-operation modules, such as logging, driver objects, caching, and thread pools, although it’s occasionally used within the implementations of other design patterns.

Question 46

It’s used for single-point-of-operation modules, such as logging, driver objects, caching, and thread pools, although it’s occasionally used within the implementations of other design patterns.

Answer 46

The Singleton pattern is one of the most popular design patterns in OOP programming. How would you describe it?

Question 47

var x=10;
var y=2;
var res=eval("x+y");
console.log (res);

Answer 47

Output: 12

Question 48

How can you declare a variable in JavaScript?

Answer 48

Using const, let and var.

Question 49

Using const, let and var.

Answer 49

How can you declare a variable in JavaScript?

Question 50

What is function overloading?

Answer 50

Having 2 functions in the same scope with the same name but differing in argument types.

Question 51

Having 2 functions in the same scope with the same name but differing in argument types.

Answer 51

What is function overloading?

Question 52

In some programming languages, function overloading or method overloading is the ability to create multiple functions of the same name with different implementations. Calls to an overloaded function will run a specific implementation of that function appropriate to the context of the call, allowing one function call to perform different tasks depending on context.

Answer 52

Function Overloading

Question 53

Function overloading

Answer 53

In some programming languages, function overloading or method overloading is the ability to create multiple functions of the same name with different implementations. Calls to an overloaded function will run a specific implementation of that function appropriate to the context of the call, allowing one function call to perform different tasks depending on context.

Question 54

In some programming languages, function overloading or method overloading is the ability to create multiple functions of the same name with different implementations. Calls to an overloaded function will run a specific implementation of that function appropriate to the context of the call, allowing one function call to perform different tasks depending on context.

Answer 54

Function Overload

Question 55

What is test driven development (TDD)?

Answer 55

A software development practice that focuses on working closely with the QA team during development time to ensure edge cases are accounted for.
A software development practice that focuses on writing all unit tests before development time begins, then focuses on getting those tests to pass.
A software development practice that focuses on a cycle of coding functionality then writing its test, ensuring your code is modular and not overcomplicated.
All of the above

Question 56

A software development practice that focuses on working closely with the QA team during development time to ensure edge cases are accounted for.
A software development practice that focuses on writing all unit tests before development time begins, then focuses on getting those tests to pass.
A software development practice that focuses on a cycle of coding functionality then writing its test, ensuring your code is modular and not overcomplicated.
All of the above

Answer 56

What is test driven development (TDD)?

Question 57

What is true about code interpreters?

Answer 57

Converts code to machine code at compile time

Question 58

Converts code to machine code at compile time

Answer 58

What is true about code interpreters?

Question 59

Code Interpreter

Answer 59

An Interpreter is a program that converts the code a developer writes into an intermediate language, called the byte code. It converts the code line by line, one at a time. It translates till the end and stops at that line where an error occurs, if any, making the debugging process easy.%
Every time source program is launched compile time

Question 60

An Interpreter is a program that converts the code a developer writes into an intermediate language, called the byte code. It converts the code line by line, one at a time. It translates till the end and stops at that line where an error occurs, if any, making the debugging process easy.%
Every time source program is launched compile time

Answer 60

Code Interpreter

Question 61

What makes the DOM slow?

Answer 61

Its tree like nature means nodes further down the branch are hard to access.

Question 62

Its tree like nature means nodes further down the branch are hard to access.

Answer 62

What makes the DOM slow?

Question 63

DOM

Answer 63

The Document Object Model (DOM) is an application programming interface (API) for HTML and XML documents. It defines the logical structure of documents and the way a document is accessed and manipulated.

Question 64

The Document Object Model (DOM) is an application programming interface (API) for HTML and XML documents. It defines the logical structure of documents and the way a document is accessed and manipulated.

Answer 64

DOM

Question 65

What is the Root node of the DOM tree?

Answer 65

Document

Question 66

Document

Answer 66

What is the Root node of the DOM tree?

Question 67

MongoDB

Answer 67

NoSQL databases are interchangeably referred to as “nonrelational,” “NoSQL DBs,” or “non-SQL” to highlight the fact that they can handle huge volumes of rapidly changing, unstructured data in different ways than a relational (SQL) database with rows and tables.
NoSQL technologies have been around since the 1960s, under various names, but are enjoying a surge in popularity as the data landscape shifts and developers need to adapt to handle the sheer volume and vast array of data generated from the cloud, mobile, social media, and big data.

Question 68

NoSQL databases are interchangeably referred to as “nonrelational,” “NoSQL DBs,” or “non-SQL” to highlight the fact that they can handle huge volumes of rapidly changing, unstructured data in different ways than a relational (SQL) database with rows and tables.
NoSQL technologies have been around since the 1960s, under various names, but are enjoying a surge in popularity as the data landscape shifts and developers need to adapt to handle the sheer volume and vast array of data generated from the cloud, mobile, social media, and big data.

Answer 68

MongoDB

Question 69

Jenkins

Answer 69

Version Control System Tool

Question 70

Version Control System Tool

Answer 70

Jenkins

Question 71

Which is NOT an advantage of DevOps?

Answer 71

Smaller deployments

Question 72

Smaller deployments

Answer 72

Which is NOT an advantage of DevOps?