Python, HTML, CSS, Javascript, Terraform

Question 1

What is PEP 8, and why is it important?

Answer 1

PEP 8 is a set of coding guidelines for writing Python code to make it readable and consistent.

Question 2

How do you comment in Python?

Answer 2

Comments in Python are indicated by the # symbol. They are used to explain the code and make it more understandable.

Question 3

Explain the difference between list and tuple in Python.

Answer 3

Lists are mutable sequences, while tuples are immutable sequences in Python.

Question 4

What is the purpose of the __init__ method in Python classes?

Answer 4

The __init__ method is a special method used to initialize newly created objects in a class.

Question 5

How do you handle exceptions in Python?

Answer 5

Exceptions in Python are handled using try-except blocks to prevent crashes when something goes wrong.

Question 6

What is a virtual environment in Python, and why would you use one?

Answer 6

A virtual environment in Python is a self-contained directory that contains a Python installation and libraries specific to a project, isolating them from system-wide installations.

Question 7

Explain the difference between == and is in Python.

Answer 7

”==” checks for equality of values, while is checks for object identity in Python.

Question 8

How do you open and read a file in Python?

Answer 8

You can open and read a file in Python using the open() function with the appropriate mode (e.g., ‘r’ for reading) and then using methods like read() to read the file contents.

Question 9

What is HTML, and what does it stand for?

Answer 9

HTML stands for Hypertext Markup Language, and it is used for creating the structure and content of web pages.

Question 10

What are HTML tags and attributes?

Answer 10

HTML tags are elements used to structure content, and attributes provide additional information about elements.

Question 11

Explain the difference between block-level and inline elements in HTML.

Answer 11

Block-level elements start on a new line and take up the full width available, while inline elements do not start on a new line and only take up as much width as necessary.

Question 12

What is the purpose of the and tags in HTML?

Answer 12

The tag contains metadata about the document, while the tag contains the content of the document.

Question 13

How do you create a hyperlink in HTML?

Answer 13

Hyperlinks in HTML are created using the <a> tag with the href attribute.</a>

Question 14

What is the difference between <div> and <span> elements?</span></div>

Answer 14

<div> is a block-level container element, while <span> is an inline container element.</span></div>

Question 15

How do you add comments in HTML?

Answer 15

Comments in HTML are written using .

Question 16

Explain the difference between HTML and HTML5.

Answer 16

HTML5 is the latest version of HTML, introducing new semantic elements and features.

Question 17

What are semantic elements in HTML5, and why are they important?

Answer 17

Semantic elements in HTML5 provide meaning to the content, making it more understandable for both browsers and developers.

Question 18

How do you embed an image in HTML?

Answer 18

Images in HTML are embedded using the <img></img> tag with the src attribute specifying the image file URL.

Question 19

What is CSS, and what does it stand for?

Answer 19

CSS stands for Cascading Style Sheets, and it is used for styling the appearance of HTML elements on web pages.

Question 20

What are the different ways to include CSS in an HTML document?

Answer 20

CSS can be included in an HTML document using external style sheets, internal style sheets, or inline styles.

Question 21

What is the difference between margin and padding in CSS?

Answer 21

Margin is the space outside the border of an element, while padding is the space inside the border of an element.

Question 22

How do you center an element horizontally and vertically in CSS?

Answer 22

You can center an element horizontally by setting margin: auto, and vertically by using flexbox or CSS Grid.

Question 23

What is the box model in CSS?

Answer 23

The box model in CSS refers to the layout model that consists of content, padding, border, and margin.

Question 24

Explain the difference between display: block, display: inline, and display: inline-block.

Answer 24

display: block makes an element a block-level element, display: inline makes it an inline element, and display: inline-block makes it an inline-level block container.

Question 25

What is the purpose of the z-index property in CSS?

Answer 25

The z-index property in CSS controls the stacking order of positioned elements.

Question 26

How do you create a CSS class?

Answer 26

CSS classes are reusable sets of CSS declarations that can be applied to multiple HTML elements.

Question 27

What are pseudo-classes in CSS, and give an example?

Answer 27

Pseudo-classes in CSS are keywords added to selectors that specify a special state of the selected element.

Question 28

What is the difference between position: relative, position: absolute, and position: fixed?

Answer 28

position: relative positions an element relative to its normal position, position: absolute positions it relative to its containing element, and position: fixed positions it relative to the viewport.

Question 29

What is JavaScript, and what can it be used for?

Answer 29

JavaScript is a scripting language used for creating interactive web pages and web applications.

Question 30

Explain the difference between == and === in JavaScript.

Answer 30

”==” is a loose equality comparison, while === is a strict equality comparison in JavaScript.

Question 31

What are JavaScript data types?

Answer 31

JavaScript has dynamic data types including numbers, strings, booleans, objects, arrays, and functions.

Question 32

How do you declare variables in JavaScript?

Answer 32

Variables in JavaScript are declared using var, let, or const keywords.

Question 33

What is the difference between let, const, and var in JavaScript?

Answer 33

let and const are block-scoped, while var is function-scoped in JavaScript. const variables cannot be reassigned.

Question 34

How do you write comments in JavaScript?

Answer 34

Comments in JavaScript can be single-line // or multi-line /* */.

Question 35

What is the DOM (Document Object Model) in JavaScript?

Answer 35

The Document Object Model (DOM) in JavaScript is a programming interface that represents the structure of HTML and XML documents as a tree of nodes.

Question 36

What are event listeners in JavaScript?

Answer 36

Event listeners in JavaScript are used to attach functions to DOM elements, so that the functions are executed when events occur.

Question 37

What is the difference between null and undefined in JavaScript?

Answer 37

null represents the absence of value, while undefined means a variable has been declared but not assigned a value.

Question 38

How do you declare and call a function in JavaScript?

Answer 38

Functions in JavaScript are declared using the function keyword, followed by the function name and parameters.

Question 39

What is Terraform, and what is its purpose?

Answer 39

Terraform is an open-source infrastructure as code tool used for building, changing, and versioning infrastructure safely and efficiently.

Question 40

How do you declare resources in Terraform?

Answer 40

Resources in Terraform are declared using resource blocks, which define the desired state of an infrastructure object.

Question 41

What is the difference between a provider and a resource in Terraform?

Answer 41

Providers in Terraform are responsible for interacting with APIs and exposing resources for management.

Question 42

What is the state file in Terraform, and why is it important?

Answer 42

The state file in Terraform keeps track of the current state of your infrastructure and is used to plan and apply changes.

Question 43

How do you create variables in Terraform?

Answer 43

Variables in Terraform are defined using the variable block and can be used to parameterize configurations.

Question 44

What are modules in Terraform, and why would you use them?

Answer 44

Modules in Terraform are reusable packages of Terraform configurations that are used to organize and share infrastructure code.

Question 45

What is the terraform apply command used for?

Answer 45

terraform apply is used to apply the changes described in the Terraform configuration to reach the desired state.

Question 46

How do you handle sensitive data (like passwords) in Terraform?

Answer 46

Sensitive data in Terraform can be handled using sensitive input variables or using the sensitive attribute for sensitive output values.

Question 47

What is the difference between terraform plan and terraform apply?

Answer 47

terraform plan is used to create an execution plan showing what actions Terraform will take to change the infrastructure.

Question 48

How do you destroy resources created by Terraform?

Answer 48

Resources created by Terraform can be destroyed using the terraform destroy command.