Huawei H14-231_V1.0 Exam Questions Instant Access

Question 1

A developer wants to implement a registration and login function, and there are two pages, namely registration page A and login page B. When jumping from registration page A to login page B, which of the following is correct about the lifecycle of the two pages?

AA(INACTIVE)B(INITIAL)B(ACTIVE)A(BACKGROUND)

BB(INITIAL)B(ACTIVE)A(INITIAL)A(BACKGROUND)

CA(INACTIVE)A(BACKGROUND)B(INITIAL) B(ACTIVE)

DA(INACTIVE)B(INITIAL)A(BACKGROUIND) B(ACTIVE)

Answer : A

Question 2

In the lifecycle of AbilitySlice, the onStart() callback method does not need to be rewritten.

ATrue

BFalse

Answer : B

Question 3

When a developer is developing a game application, in order to display the download progress of game resources, it is necessary to use a horizontal linear progress bar, which of the following components can help the developer complete this function?

AToastDialog

BRoundProgressBar

CPageSlider

DProgressBar

Answer : D

Question 4

The HarmonyOS video module supports the development of video services and the opening of the ecosystem, allowing developers to easily play, operate, and develop new functions of video media through the open interfaces. Video playback includes playback controls, playback settings, and playback queries, such as start/stop playback, playback speed settings, and whether to loop playback. When developing a video playback feature, which of the following steps is correct?

ACreate a Player instance construct a data source object and set the media source call method prepare(), call method play(), call method stop( call method release()

BCreate a Player instance call the prepare() play() construct the data source object and set the media source call the stop() release().

CConstruct a data source object and set the media source create a Player instance call method play(), call method prepare(), call method stop( call method release()

DCall the prepare() method create a Plawer instance construct a data source object and set the media source call method create a Player instance, Play() call method stop() call method release()

Answer : A

Question 5

In the distributed terminal scenario, the "correct person" refers to the data accessor and business operator who have passed identity authentication. The "right person" is a prerequisite to ensure that user data is not illegally accessed and user privacy is not leaked. What does HarmonyOS use to implement collaborative authentication?

AZero Trust model

BTrusted Execution Environment

CMulti-factor fusion authentication

DCollaborative Mutual Aid Certification

Answer : A, C, D

Question 6

A developer called the getDefaultHost(Context context) interface of BluetoothHost to obtain a Bl1uetoothHost instance for managing local Bluetooth operations. The developer uses the following development steps to implement Bluetooth pairing:

1Turn on Bluetooth.

2Scan Bluetooth.

3. Initiate pairing.

Which of the following statements about steps 1, 2, and 3 is true?

Acalls startBtDiscovery() to complete step 2

BThe order in which steps 2 and 3 are implemented can be reversed

Ccalls the enableBt() interface to complete step 1

Dcalls startPair() to complete step 3

Answer : A, C, D

Question 7

Regarding the container components Row and Column, the following statement is wrong. The main axis of A Column container is vertical, and the cross axis is horizontal;

AThe main axis of the row container is horizontal, and the cross axis is vertical.

BThe main axis and the cross axis are always perpendicular to each other, and the direction of the Row and Column main axes is different.

CThe alignment of the subcomponents of the C Column in the direction of the main axis is set using the justifyContent property, and its parameter type is FlexAlign.

DThe alignment of D Row's subcomponents in the direction of the cross axis is set using the alignltems property, which is of type HorizontalAlign.

Answer : D

Huawei HCIP-HarmonyOS Application Developer V1.0 H14-231_V1.0 Exam Questions