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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

What are the scenario-based capabilities included in the HarmonyOS feature?

A.

One-time development and multi-terminal deployment

B.

can be divided and combined, free circulation

C.

Unified ecology and native intelligence

D.

High-frequency operation to improve efficiency

What are the componentization characteristics of custom components?

A.

Combinable

B.

Reusable

C.

Configure the lifecycle

D.

Data-driven updates

A developer needs to use the emulator in DevEco Studio, click to log in to the emulator and enter your HUAWEI ID, and the browser will directly jump to the real-name authentication interface. What are the reasons for this problem?

A.

has just completed real-name authentication, but the authentication has not yet taken effect

B.

used the Chrome browser

C.

HUAWEI ID does not have real-name authentication

D The account is not registered

If a developer wants to develop an application on a smart screen, which of thefollowing subsystems will he use?

A.

DV subsystem

B.

Proprietary business subsystem of smart screen

C.

Safety subsystem

D.

Media subsystem

When a developer is developing an application, he uses DevEco Studio to create an empty Java project, but does not install Node.js separately, and can still develop the project normally.

A.

True

B.

False

When an intent is used to initiate a request, a developer designs to open a link through a browser, but does not care which browser application the user ultimately chooses.

A.

Action

B.

AbilityName

C.

Entity

D.

BundleName

What operations are supported by SCF in device-cloud integration?

A.

writes a function

B.

Test function

C.

Packing function

D.

Deploy functions

If a developer uses the DevEco Studio tool for application development, which of the following commissioning methods does the tool support?

A.

Android Debug Bridge

B.

Previewer

C.

Simulator

D.

Real machine

HarmonyOS maintains a stack of AbilitySlice instances for each Page, and each AbilitySlice instance that enters the foreground will be added to the stack.

A.

True

B.

False

When an engineer compiles and builds a HarmonyOS Ability Package (HAP) with debugging signature information in DevEco Studio, he or she needs to apply for a debugging certificate and profile file in advance.

A.

SignAlg

B.

Certpath File

C.

Profile File

D.

Store File

If you need to use a composite animation, you can combine multiple animated objects and add them to the AnimatorGroup. The AnimatorGroup provides two methods: runSerially() and runParallel(). Indicates that the animation starts at the same time and that the animation starts sequentially.

A.

True

B.

False

Which of the following service management mechanisms does HarmonyOS's distributed task scheduling consist of?

A.

Service Registration

B.

Service discovery

C.

Service calls

D.

Service synchronization

What are the reasons why a developer wants to use the previewer in DevEco Studio to view the application interface of the design, but the previewer cannot be used?

A.

Preview is not supported for files currently open in the editor

B.

SDK has not been updated to the latest version

C.

The previewer resource was not downloaded

D.

Projectis not synchronized successfully

What is correct about Web Component Description A?

A.

web componentis a component that provides the ability to display web pages.

B.

Theincoming address of a web component can be a local resource or a network resource.

C.

WebController can control various behaviors of web components, such as the forward and backward functions of web pages.

D.

When accessing online web pages, you need to add network permissions.

Which of the following methods can a developer use to obtain the actual pixel size corresponding to 8VP on the current device?

A.

int size4 =AttrHelper.convertDimensionToPix(getContext(),"8vp”,0);

B.

int size3=AttrHelper.convertDimensionToPix(getContext(),"8",0);

C.

int size2 =AttrHe1per.vp2px(8,getContext());

D.

int sizel =(int)(Dislaylanager.getInstance

().getDefaultDisplay(

getContext().get().getRealAttributes().scalDensity*8 +.5f);

If a reading app uses the language recognition capability provided by HarmonyOS, the app can automatically read a novel.

A.

True

B.

False

A developer has multiple versions of the object-relational mapping database, and the developer calls the BOOKstoreUpgrade class to upgrade the database version, and the version number of the BOOKstoreUpgrade class is configured as "3", and the actual version number of the current BOOKstore.db is "1", in this case, TestormMigration12, TestormMigration23 The onMigration method is automatically called to complete the database upgrade.

A.

True

B.

False

What features can developers use to implement collaborative identity authentication through HarmonyOS?

A.

Secure boot

B.

Zero trust model

C.

Collaborative Mutual Aid Certification

D.

Multi-factor fusion authentication

How do I create a new project in DevEco Studio?

A.

Create a new file on your computer and name it "new harmonyOS project"

B.

If you have a project open, select 'file>new>Create Project from the DevEco Studio menu

C.

If you open DevEco Studio for the first time, click "Create new Project" on the welcome page

D.

Create a new project without having to rename it

When developing HarmonyOS applications, if the client and server need to communicate across processes, you can use idl to define programming interfaces that are recognized by both.

A.

True

B.

False

What services will be automatically activated after a HarmonyOS Cloud development project is created?

A.

SCF

B.

Cloud Database

C.

Cloud storage

D.

Certification services

When a user is on a video call,Want to migrate the mobile phone video to the smart screen for playback,When clicking Migrate,Find that the smart screen is already in theoptional list,What are the correct descriptions of the scene?

A.

It embodies the characteristics of extremely fast transmission of distributed soft bus

B.

requires the mobile phone and the smart screen to be under the same LAN

C.

embodies the self-discovery function of the distributed soft bus

D.

mobile phones and smart screens can make different Huawei accounts

If a developer needs to use the JavaScript UI framework to display the bar chart of the month's product sales, he can use the chart component to implement this function.

A.

True

B.

False

HarmonyOS Distributed File Service can automatically share files under different accounts.

A.

True

B.

False

When developing an application, a developer uses the WLAN P2P function to realize point-to-point data transmission between devices. Function 2, Create and remove groups, Function 3, Initiate a connection to the peer device.Which of the above functions is correct in the following descriptions?

A.

To implement function 2, you need to use the createGroup() and removeGroup() interfaces, and you need to ohos.permission.GET_WIFI_INFO permissions

B.

In order to achieve the above functions, you need to initialize the P2P messenger through the init(), interface, and need to request ohos.permssion.GET_WIFI_INFO and ohos.premission.SET_WIFI_INFO permissions.

C.

In order to implement feature 3, connect() needs to be used, and ohos.permission.SET_WIFI_INFO permission needs to be requested

D.

To implement function 1, you need to use the discoverDevices() interface, and you need to request the ohos.permission.SET WIFI INFO permission

Which of the following methods can remove a notification?

A.

cancel

B.

cancelAll

C,removeSlot

C.

removeAll

Which of the following container components can be scrolled

A.

Scroll

B.

List

C.

Row

D.

Grid

E.

Column

Which of the following descriptions of traditional Bluetooth operation is correct for HarmonyOS devices?

A.

Bluetooth device scan can be initiated through the startBtDiscovery() interface

B.

Before starting Bluetooth scanning, you need to register to broadcastBluetoothRemoteDevice

EVENT_DEVICE_DISCOVERED

C.

You can use the getLocalName() interface to check whether Bluetooth is turned on

D.

If you want to get the scanned device, you must inherit the onReceiveEvent(CommonEventData data) method that implements the ConmonEventSubscriber class when you register the broadcast, and receive the EVENT_DEVICE_DISCOVERED broadcast

The main axis of the Row container is horizontal, and the cross axis is vertical, and its parameter type is VerticalAlign, and VerticalAlign defines the following types?

A.

Top

B.

Bottom

C.

Start

D.

End

E.

Center

An engineer wrote the following code, which items are correct in the description of the following code?

@Entity(tableName="user",ignoredColumns={"ignoredColumn1","ignoredColumn2"},indices ={@Index(value ={"firstName","lastName"),name="name_index",unique =true)})

A.

"name_index" is the composite index name

B.

index values are not unique

C.

"ignoredColumns" indicates that the field does not need to be added to the properties of the "user" table

D.

Thetable is named "user".

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