MCSD MCSD Programming in HTML5 3

Question 1

Which JavaScript method removes and returns the last element of an array?

Accepted Answer

pop()

Answer

`Array.prototype.pop()` removes the last element from an array and returns that element, mutating the original array.

Question 2

What is the purpose of the HTML5 `data-*` attribute?

Accepted Answer

To store custom private data on HTML elements accessible via JavaScript

Answer

Custom `data-*` attributes allow developers to embed extra information on HTML elements without non-standard attributes, readable via `dataset` in JavaScript.

Question 3

Which CSS3 media query feature would you use to apply styles only when the viewport is narrower than 768px?

Accepted Answer

@media screen and (max-width: 768px)

Answer

`@media screen and (max-width: 768px)` applies styles when the screen width is 768px or less, targeting mobile viewports.

Question 4

Which HTML5 API provides access to the device's geolocation?

Accepted Answer

navigator.geolocation

Answer

The Geolocation API is exposed through `navigator.geolocation`, providing methods like `getCurrentPosition()` to retrieve coordinates.

Question 5

What does the `addEventListener` third parameter `true` signify?

Accepted Answer

The event is handled during the capture phase

Answer

Passing `true` as the third argument to `addEventListener` registers the handler for the capture (top-down) phase rather than the default bubble phase.

MCSD Exam Practice Test

MCSD Exam Practice Test

MCSD MCSD Programming in HTML5 3