CSCE 102 Exam 1 Questions and
Answers Rated A+
What is the main purpose of a variable in programming?
To store data that can be used and manipulated within a program.
What is the function of an HTML tag?
To define the structure and content of a web page.
How do you create a comment ...
CSCE 102 Exam 1 Questions and
Answers Rated A+
What is the main purpose of a variable in programming?
✔✔ To store data that can be used and manipulated within a program.
What is the function of an HTML tag?
✔✔ To define the structure and content of a web page.
How do you create a comment in HTML code?
✔✔ Use `<!--` to open and `-->` to close the comment.
What is the purpose of using CSS in web development?
✔✔ To style and layout HTML elements on a web page.
How is a function defined in JavaScript?
✔✔ Using the `function` keyword followed by the function name and parentheses.
1
,What does the `<head>` element in an HTML document contain?
✔✔ Metadata, links to CSS files, and scripts that are not displayed on the web page.
How do you create a hyperlink in HTML?
✔✔ Using the `<a>` tag with the `href` attribute to specify the URL.
What is the difference between an ID and a class in CSS?
✔✔ An ID is unique to a single element, while a class can be used for multiple elements.
How do you declare a variable in JavaScript?
✔✔ Using `let`, `var`, or `const` followed by the variable name.
What does the `<title>` tag do in an HTML document?
✔✔ It sets the title of the web page, which is displayed in the browser tab.
What is the purpose of the `console.log()` function in JavaScript?
✔✔ To print output to the browser’s console for debugging purposes.
2
, How do you insert an image in an HTML document?
✔✔ Using the `<img>` tag with the `src` attribute to specify the image file path.
What is a loop in programming?
✔✔ A structure that repeats a block of code multiple times based on a condition.
How do you apply an external CSS stylesheet to an HTML document?
✔✔ By using the `<link>` tag inside the `<head>` section, with the `href` attribute pointing to
the CSS file.
What is the purpose of a `for` loop in JavaScript?
✔✔ To execute a block of code a specific number of times.
How do you write a basic `if` statement in JavaScript?
✔✔ Using the `if` keyword followed by a condition in parentheses and a block of code in curly
braces.
What does the `alt` attribute do in an `<img>` tag?
3
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