Web Programming Web Programming 2

Question 1

Which HTTP status code indicates a resource was permanently moved to a new URL?

Accepted Answer

301 Moved Permanently

Answer

301 Moved Permanently tells clients and search engines the resource has a new permanent URL.

Question 2

In CSS, what does the 'box-sizing: border-box' property do?

Accepted Answer

Includes padding and border in the element's total width and height

Answer

border-box makes the width/height include padding and border, so the element doesn't grow beyond the set size.

Question 3

What is the purpose of the JavaScript 'event.preventDefault()' method?

Accepted Answer

Prevents the browser's default action for the event

Answer

preventDefault() stops the browser's built-in behavior, like preventing a form from submitting or a link from navigating.

Question 4

Which SQL clause is used to filter results after aggregation?

Accepted Answer

HAVING

Answer

HAVING filters grouped/aggregated results, whereas WHERE filters rows before grouping.

Question 5

What does CORS stand for in web development?

Accepted Answer

Cross-Origin Resource Sharing

Answer

CORS is a browser security mechanism that controls how web pages can request resources from a different domain.

Web Programming Practice Test