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Huawei H14-231_V1.0 Practice Test - Questions Answers, Page 35

Question list

List of questions

Question 341

(0)

Which of the following descriptions of Harmony OS Data Ability are correct?

Question 342

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What files does an engineer need to use to sign the debugged module when he wants to debug a newly developed application on a real device?

Question 343

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When a data engineer constructs a data table, which of the following can be used as data types?

Question 344

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

Question 345

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Which of the following layers does the JavaSeript framework include?

Question 346

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Which of the following subsystems in HarmonyOS is part of the basic software service subsystem set?

Question 347

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When using HarmonyOS distributed terminals, which of the following items can ensure that the system is safe and reliable?

Question 348

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The library file is the third-party code that the application depends on, which of the following library files are correct?

Question 349

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If a developer wants to use the notification function of HarmonyOS when developing an application, which of the following notification styles can be selected by the developer?

Question 350

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When a developer calls Particle Ability (PA) with FA (Feature Ability), callAbility returns the error 'Internal ability not register.', what key steps does the developer need to check?

Related questions

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

Which of the following sorting types does the trusted list of devices found by HarmonyOS Device Manager contain?

In the HarmonyOS system architecture, the distributed data management module belongs to the framework layer.

A developer is developing a flight booking application, and uses the sliding selector Picker to select the location of the ticket and writes the following code.

A developer needs to cancel a task, but part of the code segment he wrote was deleted by mistake. The remaining codes are as follows, with the missing codes indicated by the dash: TaskDispatcher dispatcher = getUlTaskDispatcher(); Revocable revocable = ________________________(new Runnable(){ @Overide Public void run(){ HiLog.info(L . ABEL_ _LOG,'delay dispatch'); } },10); Boolean revoked = revocable.revoke(); HiL og.info(L _ABEL_ LOG),'%{public}b' ,revoked); Which of the following might be missing pieces in the above code?

fter a developer sets :ohos:layout_alignment='horizontal_center' in the Text component, he writes: text.setMarginRight (600) in the code, where is the Text displayed in the parent layout?

The default size of shared memory in Harmony OS is ?

Which modules in the following figure can be installed and operated independently?

An engineer uses the WLAN P2P function, and the engineer can establish a P2P group.

What is the API for lottie to subscribe to events?

Question 341

Which of the following descriptions of Harmony OS Data Ability are correct?

Data Ability is used to provide a unified abstraction of data access within and between applications

Data Ability provides interfaces for adding, deleting, modifying, querying, and opening files of data, and the specific implementation of these interfaces is provided by the system

Data Ability can be used for data sharing between apps on the same device and across devices

Using Data Ability helps apps manage access to data stored by themselves and other apps, and provides a way to share data with other apps

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Question 342

What files does an engineer need to use to sign the debugged module when he wants to debug a newly developed application on a real device?

HarmsryAppProxvision file (.p7b).

Digital certificate (.cer).

Private key (.p12)

Request file (.csr).

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Question 343

When a data engineer constructs a data table, which of the following can be used as data types?

Boolean type

String type

Double-precision floating-point type

integer type

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Question 344

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

depends on the cloud

shields different physical transmission channels

The synchronization logic is completely transparent

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

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Question 345

Which of the following layers does the JavaSeript framework include?

Front-end frame layer

Engine Layer

Application Layer

Platform adaptation layer

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Question 346

Which of the following subsystems in HarmonyOS is part of the basic software service subsystem set?

Media Subsystem

Location Services Subsystem

Telephony subsystem

Event Notification Service Subsystem

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Question 347

When using HarmonyOS distributed terminals, which of the following items can ensure that the system is safe and reliable?

Distributed multi-terminal collaborative identity authentication

The distributed terminal must be a Huawei product

In the process of cross-terminal flow of distributed data, the data is classified and hierarchically managed

Build a trusted operating environment on distributed terminals

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Question 348

The library file is the third-party code that the application depends on, which of the following library files are correct?

Create a new module with the source code of the library file as a whole, and the entry directly references the classes in the library file

Put the library files in the libs directory in the form of jar, so, etc., and then reference the dependencies dependencies{Implementation project(':mylibrary ') } through the build.gradle under the project

If the required library files exist in the maven repository, you can use repositories{Maven{Url 'XXX'// to add the project's build.gradle as follows The address of the Maven repository, which can be either a local Maven address or a remote Maven address}

Put the library file in the libs directory in the form of jar.so, and then reference the dependency library through the build.gradle of the application module dependencies(Implementation project(':mylibrary'))

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Question 349

If a developer wants to use the notification function of HarmonyOS when developing an application, which of the following notification styles can be selected by the developer?

Plain text

Multi-line text

Long text

Picture

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Question 350

When a developer calls Particle Ability (PA) with FA (Feature Ability), callAbility returns the error 'Internal ability not register.', what key steps does the developer need to check?

checks that the Ability filled in on the JS (JavaScript) side is 1

In the AccAbility inheritance class, whether the register method is executed for the AcelnternalAbility inheritance class

Whether the bundLeName and abilityName filled in on the JS (JavaScript) side are the same as the names filled in the AcelnternalAbility inheritance class constructor

Check that the Internal Ability entered on the JS (JavaScript) side is 0

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