DQ – Module 10: Dynamic Updates, AJAX, and Single-Page Apps

Created on January 01, 2023

DQ - Module 10: Dynamic Updates, AJAX, and Single-Page Apps

1 / 15

Accessibility problems associated with automatically refreshing or reloading a page include:

All the options

Users may lose their place on the page

Users may have a seizure

Users may not have time to read content before it disappears

2 / 15

ARIA live announcements should be used to announce the the time left on a countdown timer every time the visible time remaining changes.

True

False

3 / 15

aria-live="assertive" always gives screen reader users updates, while aria-live="polite" asks the user if they would like updates.

False

True

4 / 15

When moving focus to an element that is not focusable, it is important to include which one of the following attributes on the container:

tabindex="-1"

aria-focus="true"

tabindex="0"

tabindex="1"

5 / 15

Which of the following is NOT a consideration when moving focus to new content:

Sending focus to AJAX content must be the last event.

Focus should not move unexpectedly.

The container on which focus is set must not be empty.

The element that triggers the focus change must include aria-haspopup="true".

6 / 15

ARIA live announcements are an effective way to notify users of new content without moving the user's focus.

False

True

7 / 15

When a user allows a session to time out, it is not necessary to save data because the user would have extended the session if they intended to continue.

True

False

8 / 15

If one of your pages employs a time-limit, which of the following are recommended?

Provide a warning when the time limit is about to expire

All the options

Ensure the time limit is greater than four hours

Provide an option to extend the session

9 / 15

Interstitial views are intended to be temporary and therefore it is not required to make screen reader users aware of their presence.

True

False

10 / 15

The ARIA live region must be present on the page and must be empty before inserting the content to be announced.

False

True

11 / 15

While portions of a page are still loading (lazy loading):

Screen Readers should announce every time new content has loaded.

None of the above; this technique should be avoided.

Newly loaded content should receive screen reader focus.

Placeholders for content that is still loading should inform users the content is being loaded.

12 / 15

If refreshing page content is important for a web site, it is recommended that users be notified that new content is available using a dialog or an ARIA alert message depending on the urgency of the update.

False

True

13 / 15

Infinite scrolling may prevent a user from accessing information that comes after the infinite scrolling area.

True

False

14 / 15

Regarding single-page applications, which of the following statements is FALSE?

Focus management is often an essential part of making a single-page application accessible.

The <title> of a single-page application should not be updated when the user has selected a link that causes an AJAX event.

A user must be able to use the browser's back and forward functionality as would be expected in a non-single-page application.

Screen reader users must be made aware of new content loaded on the page.

15 / 15

Giving a screen-reader only method for skipping past scrolling content is an acceptable method for implementing infinite scrolling accessibly.

True

False

Your score is

The average score is 53%

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