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WAS Certification Exam > Principle 1: Perceivable > Flashcards

Principle 1: Perceivable Flashcards

Information and user interface components must be presentable to users in ways they can perceive.

1
Q

What is the WCAG 2.1 description for perceivable?

A

Information and user interface components must be presentable to users in ways they can perceive.

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2
Q

Provide text alternatives for any non-text content so that it can be changed into other forms people need, such as large print, braille, speech, symbols or simpler language.

A

Guideline 1.1 Text Alternatives

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3
Q

All non-text content that is presented to the user has a text alternative that serves the equivalent purpose, except for certain situations.

A

1.1.1 Non-text Content

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4
Q

What level is 1.1.1 Non-text Content?

A

A

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5
Q

What are the situations in which 1.1.1 Non-text Content may NOT apply?

A

Controls, input, time-based media, test, sensory, CAPTCHA, decorating, formatting, invisible

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6
Q

Provide alternatives for time-based media.

A

Guideline 1.2 Time-based Media

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7
Q

For prerecorded audio-only and prerecorded video-only media, the following are true, except when the audio or video is a media alternative for text and is clearly labeled as such:

Prerecorded Audio-only: An alternative for time-based media is provided that presents equivalent information for prerecorded audio-only content.

Prerecorded Video-only: Either an alternative for time-based media or an audio track is provided that presents equivalent information for prerecorded video-only content.

A

1.2.1 Audio-only and Video-only (Prerecorded)

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8
Q

What level is 1.2.1 Audio-only and Video-only (Prerecorded)?

A

A

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9
Q

Captions are provided for all prerecorded audio content in synchronized media, except when the media is a media alternative for text and is clearly labeled as such.

A

1.2.2 Captions (Prerecorded)

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10
Q

What level is 1.2.2 Captions (Prerecorded)?

A

A

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11
Q

An alternative for time-based media or audio description of the prerecorded video content is provided for synchronized media, except when the media is a media alternative for text and is clearly labeled as such.

A

1.2.3 Audio Description or Media Alternative (Prerecorded)

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12
Q

What level is 1.2.3 Audio Description or Media Alternative (Prerecorded)?

A

A

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13
Q

Captions are provided for all live audio content in synchronized media.

A

1.2.4 Captions (Live)

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14
Q

What level is 1.2.4 Captions (Live)?

A

AA

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15
Q

Audio description is provided for all prerecorded video content in synchronized media.

A

1.2.5 Audio Description (Prerecorded)

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16
Q

What level is 1.2.5 Audio Description (Prerecorded)?

A

AA

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17
Q

Sign language interpretation is provided for all prerecorded audio content in synchronized media.

A

1.2.6 Sign Language (Prerecorded)

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18
Q

What level is 1.2.6 Sign Language (Prerecorded)?

A

AAA

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19
Q

Where pauses in foreground audio are insufficient to allow audio descriptions to convey the sense of the video, extended audio description is provided for all prerecorded video content in synchronized media.

A

1.2.7 Extended Audio Description (Prerecorded)

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20
Q

What level is 1.2.7 Extended Audio Description (Prerecorded)?

A

AAA

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21
Q

An alternative for time-based media is provided for all prerecorded synchronized media and for all prerecorded video-only media.

A

1.2.8 Media Alternative (Prerecorded)

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22
Q

What level is 1.2.8 Media Alternative (Prerecorded)?

A

AAA

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23
Q

An alternative for time-based media that presents equivalent information for live audio-only content is provided.

A

1.2.9 Audio-only (Live)

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24
Q

What level is 1.2.9 Audio-only (Live)?

A

AAA

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25
Q

Create content that can be presented in different ways (for example simpler layout) without losing information or structure.

A

Guideline 1.3 Adaptable

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26
Q

Information, structure, and relationships conveyed through presentation can be programmatically determined or are available in text.

A

1.3.1 Info and Relationships

27
Q

What level is 1.3.1 Info and Relationships?

A

A

28
Q

When the sequence in which content is presented affects its meaning, a correct reading sequence can be programmatically determined.

A

1.3.2 Meaningful Sequence

29
Q

What level is 1.3.2 Meaningful Sequence?

A

A

30
Q

Instructions provided for understanding and operating content do not rely solely on sensory characteristics of components such as shape, color, size, visual location, orientation, or sound.

A

1.3.3 Sensory Characteristics

31
Q

What level is 1.3.3 Sensory Characteristics?

A

A

32
Q

Content does not restrict its view and operation to a single display orientation, such as portrait or landscape, unless a specific display orientation is essential.

A

1.3.4 Orientation

33
Q

What level is 1.3.4 Orientation?

A

AA (added in 2.1)

34
Q

The purpose of each input field collecting information about the user can be programmatically determined when:

The input field serves a purpose identified in the Input Purposes for User Interface Components section; and

The content is implemented using technologies with support for identifying the expected meaning for form input data.

A

1.3.5 Identify Input Purpose

35
Q

What level is 1.3.5 Identify Input Purpose?

A

AA (added in 2.1)

36
Q

In content implemented using markup languages, the purpose of User Interface Components, icons, and regions can be programmatically determined.

A

1.3.6 Identify Purpose

37
Q

What level is 1.3.6 Identify Purpose?

A

AAA (added in 2.1)

38
Q

Make it easier for users to see and hear content including separating foreground from background.

A

Guideline 1.4 Distinguishable

39
Q

Color is not used as the only visual means of conveying information, indicating an action, prompting a response, or distinguishing a visual element.

A

1.4.1 Use of Color

40
Q

What level is 1.4.1 Use of Color?

A

A

41
Q

If any audio on a Web page plays automatically for more than 3 seconds, either a mechanism is available to pause or stop the audio, or a mechanism is available to control audio volume independently from the overall system volume level.

A

1.4.2 Audio Control

42
Q

What level is 1.4.2 Audio Control?

A

A

43
Q

The visual presentation of text and images of text has a contrast ratio of at least 4.5:1, except for the following:

Large Text: Large-scale text and images of large-scale text have a contrast ratio of at least 3:1;

Incidental: Text or images of text that are part of an inactive user interface component, that are pure decoration, that are not visible to anyone, or that are part of a picture that contains significant other visual content, have no contrast requirement.

Logotypes: Text that is part of a logo or brand name has no contrast requirement.

A

1.4.3 Contrast (Minimum)

44
Q

What level is 1.4.3 Contrast (Minimum)?

A

AA

45
Q

Except for captions and images of text, text can be resized without assistive technology up to 200 percent without loss of content or functionality.

A

1.4.4 Resize text

46
Q

What level is 1.4.4 Resize text?

A

AA

47
Q

If the technologies being used can achieve the visual presentation, text is used to convey information rather than images of text except for the following:

Customizable: The image of text can be visually customized to the user’s requirements;

Essential: A particular presentation of text is essential to the information being conveyed.

A

1.4.5 Images of Text

48
Q

What level is 1.4.5 Images of Text?

A

AA

49
Q

The visual presentation of text and images of text has a contrast ratio of at least 7:1, except for the following:

Large Text: Large-scale text and images of large-scale text have a contrast ratio of at least 4.5:1;

Incidental: Text or images of text that are part of an inactive user interface component, that are pure decoration, that are not visible to anyone, or that are part of a picture that contains significant other visual content, have no contrast requirement.

Logotypes: Text that is part of a logo or brand name has no contrast requirement.

A

1.4.6 Contrast (Enhanced)

50
Q

What level is 1.4.6 Contrast (Enhanced)?

A

AAA

51
Q

For prerecorded audio-only content that (1) contains primarily speech in the foreground, (2) is not an audio CAPTCHA or audio logo, and (3) is not vocalization intended to be primarily musical expression such as singing or rapping, at least one of the following is true:

No Background: The audio does not contain background sounds.

Turn Off: The background sounds can be turned off.

20 dB: The background sounds are at least 20 decibels lower than the foreground speech content, with the exception of occasional sounds that last for only one or two seconds. Per the definition of “decibel,” background sound that meets this requirement will be approximately four times quieter than the foreground speech content.

A

1.4.7 Low or No Background Audio

52
Q

What level is 1.4.7 Low or No Background Audio?

A

AAA

53
Q

For the visual presentation of blocks of text, a mechanism is available to achieve the following:

Foreground and background colors can be selected by the user.

Width is no more than 80 characters or glyphs (40 if CJK).

Text is not justified (aligned to both the left and the right margins).

Line spacing (leading) is at least space-and-a-half within paragraphs, and paragraph spacing is at least 1.5 times larger than the line spacing.

Text can be resized without assistive technology up to 200 percent in a way that does not require the user to scroll horizontally to read a line of text on a full-screen window.

A

1.4.8 Visual Presentation

54
Q

What level is 1.4.8 Visual Presentation?

A

AAA

55
Q

Images of text are only used for pure decoration or where a particular presentation of text is essential to the information being conveyed.

A

1.4.9 Images of Text (No Exception)

56
Q

What level is 1.4.9 Images of Text (No Exception)?

A

AAA

57
Q

Content can be presented without loss of information or functionality, and without requiring scrolling in two dimensions for:

Vertical scrolling content at a width equivalent to 320 CSS pixels;

Horizontal scrolling content at a height equivalent to 256 CSS pixels;

A

1.4.10 Reflow

58
Q

What level is 1.4.10 Reflow?

A

AA (added in 2.1)

59
Q

The visual presentation of the following have a contrast ratio of at least 3:1 against adjacent color(s):

User Interface Components: Visual information required to identify user interface components and states, except for inactive components or where the appearance of the component is determined by the user agent and not modified by the author;

Graphical Objects: Parts of graphics required to understand the content, except when a particular presentation of graphics is essential to the information being conveyed.

A

1.4.11 Non-text Contrast

60
Q

What level is 1.4.11 Non-text Contrast?

A

AA (added in 2.1)

61
Q

In content implemented using markup languages that support the following text style properties, no loss of content or functionality occurs by setting all of the following and by changing no other style property:

Line height (line spacing) to at least 1.5 times the font size;

Spacing following paragraphs to at least 2 times the font size;

Letter spacing (tracking) to at least 0.12 times the font size;

Word spacing to at least 0.16 times the font size.

A

1.4.12 Text Spacing

62
Q

What level is 1.4.12 Text Spacing?

A

AA (added in 2.1)

63
Q

Where receiving and then removing pointer hover or keyboard focus triggers additional content to become visible and then hidden, the following are true:

Dismissible: A mechanism is available to dismiss the additional content without moving pointer hover or keyboard focus, unless the additional content communicates an input error or does not obscure or replace other content;

Hoverable: If pointer hover can trigger the additional content, then the pointer can be moved over the additional content without the additional content disappearing;

Persistent: The additional content remains visible until the hover or focus trigger is removed, the user dismisses it, or its information is no longer valid.

A

1.4.13 Content on Hover or Focus

64
Q

What level is 1.4.13 Content on Hover or Focus?

A

AA (added in 2.1)

WAS Certification Exam (11 decks)

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