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H14-231_V1.0 Huawei HCIP-HarmonyOS Application Developer V1.0 Free Practice Exam Questions (2025 Updated)

Prepare effectively for your Huawei H14-231_V1.0 HCIP-HarmonyOS Application Developer V1.0 certification with our extensive collection of free, high-quality practice questions. Each question is designed to mirror the actual exam format and objectives, complete with comprehensive answers and detailed explanations. Our materials are regularly updated for 2025, ensuring you have the most current resources to build confidence and succeed on your first attempt.

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Total 695 questions

If a developer develops a HarmonyOS application and remotely launches a Page on phone B, which of the following permissions does not require the user to request authorization by sending a pop-up window at runtime?

A.

ohos.permission.GET_DISTRIBUTED_DEVICE_INFO

B.

ohos.permission.DISTRIBUTED_DEVICE_STATE_CHANGE

C.

ohos.permission.GET_BUNDLE_INFO

D.

ohos.permission.DISTRIBUTED_DATASYNC

When a developer designs a JavaScript login page, he needs to use Internal Ability to call Data Abiliity to verify the username and password, which of the following can be modified to complete the function?

const ABILITY_TYPE_EXTERNAL=0;

var action=0;

action.bundleName="com.huawei.loginservice"; action.abilityName="com.huawei.loginservice.LoginDataAbility";

action.messageCode=ACTION_MESSAGE_CODE_PLUS;

action.data=actionData;

action.abilityType=ABILITY_TYPE_EXTERNAL; action.syncOption=ACTION_SYNC;

var result=await

FeatureAbility.callAbility(action);

A.

action.ability Type= ABILITY_TYPE_INTERNAL;

B.

action.abiltyType =ABILITY_TYPE;

C.

const ABILITY_TYPE_INTERNAL=1;

D.

const ABILITY_TYPE_EXTERNAL= 2;

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.

A.

ToastDialog

B.

Picker

C.

ScrollView

D.

PageSlider

Which of the following descriptions is wrong when it comes to the simultaneous development of JS (JavaScript) and Java languages in HarmonyOS application development?

A.

Use Java to develop the UI of the application

B.

JS FA calls Java PA

C.

Use JS to develop the logic of the application

D.

Java FA (Feature Ability) calls JS PA (Particle Ability).

A HarmonyOSengineer needs to apply for a digital certificate to complete the release of the application, which of the following descriptions of digital certificates is wrong?

A.

Issued by AppGallery Connect

B.

You need to use DevEco Studio to generate a key

C.

Digital certificates are used to ensure the integrity of the application

D.

The digital certificate format is .csr

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?

A.

onStartContinuation()

B.

onCompleteContinuation()

C.

onRestoreData()

D.

onSaveData()

There are two Text components in the Row component, if you use justifyContent alignment, which of the following properties can achieve left and right alignment?

A.

FlexAlign.Start

B.

FlexAlign.SpaceEvenly

C.

FlexAlign.End

D.

FlexAlign.SpaceBetween

With regard to Web components, the following is incorrect

A.

WebController can control various behaviors of web components, such as forward, backward, runJavaScript, etc.

B.

The web component supports the setting of various properties such as fileAccess.javaScriptAccess, for example, .javaScriptAccess(true) indicates that JavaScript scripts are allowed to be executed.

C.

The web component supports a variety of events, such as onConfirm and onConsole, for example, the onConfirm callback is triggered when a web page calls confirm().

D.

The ohos.permission.INTERNET permission is required to access both online and offline web pages using the web component.

API9 and above, router.pushUrl() method, what is the default mode used by the jump page?

A.

standard

B.

Single

C.

Specified

D.

All of the above

After developing a HarmonyOS application, the developerneeds to package the application into an app for publishing it to AppGallery. You can use DevEco Studio to generate a key, in what format is the key stored in the keystore file?

A.

p12

B.

.csr

C.

p7b

D.

.cer

HarmonyOS Capabilities are divided into two types: Feature Ability and Particle Ability.

A.

Service Ability

B.

Data Ability

C.

Page Ability

D.

Ability Slice

Whichof the following does not belong to the application framework layer in the Harmony OS system architecture?

A.

UI

B.

Distributed data management

C.

User Program Framework

D.

Ability

Which of the following functions can be achieved through the sidebar button of the remote simulator?

A.

Sets the device resolution of the remote emulator

B.

Release the remote emulator that is currently in use

C.

Rotate the screen clockwise

D.

Return to the main interface of the device

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

A.

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

B.

shields different physical transmission channels

C.

Depends on the cloud

D.

The synchronization logic is completely transparent

Whichof the following subsystems in Harmony OS can achieve data isolation between applications?

A.

Location Services subsystem

B.

Safety subsystem

C.

Media Subsystem

D.

AI subsystem

Which of the following features of the HarmonyOS distributed database are correctly described?

A.

depends on the cloud

B.

shields different physical transmission channels

C.

The synchronization logic is completely transparent

D.

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

What kind of struct is used to decoratively indicate that the structure has the ability to be componentized?

A.

@Component

B.

@Entry

C.

@Builder

D.

@Preview

A developer uses ListContainer to create a list component that can be swiped, in order to improve the user experience, it needs to display the rebound effect when swiping to the beginning and end of the list, which of the following options can meet this requirement?

A.

listContainer.setReboundEffect(true);

B.

ohos:rebound_effect="true"/>

C.

listContainer.setReboundEffect(false);

D.

ohos:rebound_effect="false"/>

A developer has developed a news browsing application, and the news list page is displayed by default when the application is opened, which of the following methods does the developer use to achieve this function?

A.

Intent()

B.

setMainRoute()

C.

addActionRoute()

D.

onStart()

Which of the following system resources does the Ark Development Framework provide for developers?

A.

string

B.

Picture

C.

Color

D.

Rounded corners

When a user uses the device camera to flip a blurry text file, he expects the camera app to provide a plug-in to improve the recognition of the text. Which of the following HarmonyOS service features is best suited to meet the needs of this user?

A.

Keyword extraction

B.

Document detection and correction

C.

General character recognition

D.

Image text is super-resolved

There is a configljson configuration file in the root directory of each HAP (HarmonyOS Ability Package) of a HarmonyOS application.

A.

app

B.

deviceConfig

C.

module

D.

abilities

When an Intent is used to initiate a request, if both BundleName and AbilityName are specified, which of the following codes is used to directly start the application?

A.

a12345

B.

com.demoapp

C.

Deviceld

D.

com.demoapp.FirstAbility

What kind of custom component can be used as a page entry component with a decorator?

A.

@Component

B.

@Entry

C.

@Builder

D.

@Preview

When is the aboutToAppear() of the custom component executed?

A.

build function

B.

build function

C.

page entry

D.

page

Which of the following classes is the base class for JavaScript FA (Feature Ability) to run on HarmonyOS?

A.

AceAbility

B.

PageAbility

C.

ServiceAbility

D.

MainAbility

The log content filtered by a developer through relevant information is: 01-20 16:08:36.908

23597/com.example.myapplication W

00201/MY-TAG:Failed to visit,reason:503.Which of the following cannot be obtained by analyzing this log?

A.

is defined in the HiLogLabel

B.

Errnovalue

C.

Reachable URL value

D.

The log level is WARN

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