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HTML5 Application Development Fundamentals

Question No: 31

Which three code fragments define an HTML input control? (Choose three.)

1. Option A

2. Option B

3. Option C

4. Option D

5. Option E

Answer: C,D,E

Explanation: HTML input types include: button

checkbox color date datetime

datetime-local email

file hidden image month number password radio range reset search

submit tel text time url week

Note:

HTML Forms – The Input Element

The most important form element is the lt;inputgt; element. The lt;inputgt; element is used to select user information.

An lt;inputgt; element can vary in many ways, depending on the type attribute. An lt;inputgt; element can be of type text field, checkbox, password, radio button, submit button, and more.

Question No: 32

When you are testing a touch interface, which two gestures can you simulate by using a mouse? (Choose two.)

1. tap

2. pinch

3. flick

4. rotate

Answer: A,D

Question No: 33

Which JavaScript method allows you to register multiple handlers for a single touch event?

1. dispatchEvent

2. initUIEvent

3. addEventListener

4. initEvent

Answer: C

Question No: 34

Which code fragment prepares the HTML5 application to be used offline?

1. Option A

2. Option B

3. Option C

4. Option D

Answer: B

Question No: 35

Which two are WebSocket events? (Choose two.)

1. onconnect

2. onmessage

3. ondatareceived

4. onopen

Answer: B,D

Explanation: Following are the events associated with WebSocket object. Assuming we created Socket object:

Event, Event Handler, Description

• open

  Socket.onopen

  This event occurs when socket connection is established.

• message Socket.onmessage

This event occurs when client receives data from server. error

Socket.onerror

This event occurs when there is any error in communication.

• close Socket.onclose

  This event occurs when connection is closed.

  Question No: 36

  Which attribute prefills a default value for an input element in HTML5?

  1. name

  2. placeholder

  3. autocomplete

  4. required

  Answer: B

  Question No: 37

  Which code fragment will display an image file while the video is downloading?

  

  1. Option A

  2. Option B

  3. Option C

  4. Option D

  Answer: B

  Question No: 38

  Which HTML5 code fragment shows a way to validate numeric input as having a value from 1 to 100, inclusive?

  

  1. Option A

  2. Option B

  3. Option C

  4. Option D

  Answer: D

  Question No: 39

  You create an instance named quot;locationquot; of a geolocation object.

  Which code fragment will initiate periodic updates of a device#39;s geographic location?

  1. location = navigator.geolocation;

  2. location.watchPosition(showLocation) ;

  3. location.getCurrentPosition(showLocation);

  4. location.clearNatch(watchid);

  Answer: B

  Question No: 40

  Which tag is used to create a drop-down list in HTML5?

  1. lt;ulgt;

  2. lt;selectgt;

  3. lt;datalistgt;

  4. lt;ddgt;

  Answer: B

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