web development exam questions and answers

CSS Questions:

• What does CSS stand for?

  CSS stands for Cascading Style Sheets.

• How do you select an element with a specific class in CSS?

  You can select elements with a specific class using the dot notation. For example: .my-class

• What is the purpose of CSS media queries?

  CSS media queries are used to apply different styles based on the characteristics of the device or viewport, such as screen size or orientation.

• What is the box model in CSS?

  The CSS box model describes how elements are rendered on a web page, including their content, padding, border, and margin.

• Explain the difference between `margin` and `padding` in CSS.

  `Margin` is the space outside an element, while `padding` is the space inside an element, between its content and border.

JavaScript Questions:

• What is JavaScript?

  JavaScript is a programming language used for web development to add interactivity and functionality to web pages.

• How do you declare a variable in JavaScript?

  You can declare a variable using the `var`, `let`, or `const` keywords. For example: var myVar = 10;

• What is an event listener in JavaScript?

  An event listener is a function that waits for a specific event to occur, such as a button click or a keypress, and then executes a specified action.

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

  The DOM represents the structure of an HTML document as a tree of objects, allowing JavaScript to interact with and manipulate the content of a web page.

• How do you write a conditional statement in JavaScript?

  Conditional statements, such as `if`, `else if`, and `else`, are used to make decisions in JavaScript based on certain conditions. For example: if (x > 10) { /* do something */ }

Conclusion

Congratulations! You’ve now reviewed some important web development concepts and questions that may come in handy for your exam. Remember to practice coding and build projects to reinforce your knowledge. Best of luck with your web development exam!

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