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H14-231_V1.0
HCIP-HarmonyOS Application Developer V1.0 Questions and Answers

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Viewing page 6 out of 14 pages

Viewing questions 76-90 out of questions

Questions # 76:

The maximum number of simultaneous activations of a Worker thread

Options:

Answer

Explanation

Radio

Questions # 77:

When creating an application, which field in the config.json file must be the same as the application package name?

Options:

package

name

bundleName

page

Answer

Questions # 78:

When developing a HarmonyOS application, if you want to set the background color for a Text component in the page, the following is correct

Options:

ohos:background_element="$graphic:background

ohos:background_element="$color:green"

ohos:background_element="#0000FF"

ohos:background_element="#880000FF"

Answer

A, B, C, D

Questions # 79:

If a developer wants to set up a dial pad, he will use round buttons and capsule buttons, what are the shape types that will be used in the background layer?

Options:

oval

rectangle

line

are

Answer

A, B

Questions # 80:

A HarmonyOS application developer creates two pages, indlex and detai1, so that the two pages jump to each other. The code of the index page is as follows, which of the following descriptions are correct?

Question # 80

Options:

Text component is used to mark the current page

When you click the button, the lunch event will be triggered

TheText component is used to jump to and from two pages

TheButton component is used to jump to and from two pages

Answer

A, B, D

Questions # 81:

When a company is developing a HarmonyOSapplication, it needs to customize an artboard control, how to get the X coordinates of the current touch point in the whole screen during the listening of touch events?

Options:

touchEvent.getPointerScreenPosition(touchEvent.getIndex()).getX()

touchEvent.getPointerPosition(touchEvent.getltem()).getX()

touchEvent.getPointerScreenPosition(touchEvent.getltem()).getX()

touchEvent.getPointerPosition(touchEvent.getlndex()).getX()

Answer

Questions # 82:

In the collaborative office scenario, project the document on the mobile phone to the smart screen, and perform page turning and zoom operations on the document on the smart screen. What distributed capabilities are used in the preceding scenarios?

Options:

Distributed Device Virtualization

Distributed Data Service

distributed soft bus

Distributed file services

Answer

C, D

Questions # 83:

Cross-terminal migration and collaboration are the capabilities of which HarmonyOS feature

Options:

Develop multiple deployments at one time

can be divided or combined

Unified ecology

Free circulation

Answer

Questions # 84:

Where is the data of the preference placed after persistence?

Options:

In memory

database table

file

Cloud

Answer

Questions # 85:

When a developer is developing an online education application, in order to improve the user experience, if the userAnswer:s the question correctly, a dialog box of "Congratulations on the correctAnswer:" will pop up at the top of the window.

Options:

ToastDialog

Picker

ScrollView

PageSlider

Answer

Questions # 86:

Regarding the ResponseCode returned by the request, which of the following descriptions is incorrect?

Options:

AResponseCode.OK has a value of 200, indicating that the request is successful. It is generally used for GET and POST requests.

Avalue of 404 for the B ResponseCode.NOT_FOUND indicates that the server was unable to locate the resource (web page) based on the client's request.

Avalue of 500 for the C ResponseCode.INTERNAL_ERROR indicates an internal server error and the request could not be completed.

Avalue of 404 indicates that the resource requested by the client no longer exists.

Answer

Questions # 87:

If the user migrates the video on the machine to the smart screen for playback, which of the following callback methods can save the video playback data on the mobile phone?

Options:

onStartContinuation()

onCompleteContinuation()

onRestoreData()

onSaveData()

Answer

Questions # 88:

Which of the following items are correctly described about the HarmonyOS distributed database?

Options:

The interface is simple, and the backup and encryption features are simple and configurable

shields different physical transmission channels

Depends on the cloud

The synchronization logic is completely transparent

Answer

A, B, D

Questions # 89:

Regarding the callback event of the Video component, the following statement is incorrect

Options:

onStart is triggered when the video is playing, and you can get the video duration here.

This event is triggered at the end of the B onFinish video.

Thisevent is triggered when the C onPrepared video is ready.

onUpdate is triggered when the playback progress changes, the unit is s, and the update interval is 250 ms.

Answer

Questions # 90:

When developing HarmonyOS applications, the main function of EventHandler is to deliver InnerEvent events or Runnable tasks to other threads for processing.