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Huawei H14-231_V1.0 Practice Test - Questions Answers, Page 32

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List of questions

Question 311

(0)

HarmonyOS provides two mechanisms for calling JavaPA (ParticleAbility) by JSFA(FeatureAbility), namely Ability and InternalAbility.

Question 312

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

Question 313

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When developing a HarmonyOS application, a developer receives the following product request: If a user logs in to the same HarmonyOS account on device A and device B, the user can log in to the app

Question 314

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

Question 315

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What principles of permission should be followed when developing HarmonyOS applications?

Question 316

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HarmonyOS supports the flexible deployment of multiple terminal devices on demand through design methods such as componentization and miniaturization, and can adapt to different types of hardware re

Question 317

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HarmonyOS is designed for 1+8+N full-scene experience, which of the following devices belongs to the '8' in 1+8+N?

Question 318

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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

Question 319

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The Minimalist Protocol is a communication protocol customized by HarmonyOS, which layers of the traditional communication protocol are simplified?

Question 320

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When a developer develops a HarmonyOS application and uses an intent pass object, which of the following descriptions of intent are correct?

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.

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?

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

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?

The default size of shared memory in Harmony OS is ?

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

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

Question 311

HarmonyOS provides two mechanisms for calling JavaPA (ParticleAbility) by JSFA(FeatureAbility), namely Ability and InternalAbility.

Ability has an independent life cycle

Ability does not need to be registered with the FA

The class inherited by C InternalAbility is ohos.ace.ability.AcelnternalAbility

Ability is not allowed to be accessed by other FAs

InternalAbility cannot be called by other FAs

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Question 312

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

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

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When developing a HarmonyOS application, a developer receives the following product request: If a user logs in to the same HarmonyOS account on device A and device B, the user can log in to the app on device A and synchronize the application account authentication information to account B as needed. After the account authentication information is synchronized, the user can open the application on device B and log in directly without entering the application account authentication information again. Which of the following descriptions of this scene is correct?

The developer can do this with the help of UUIDs, because apps can use UUIDs to uniquely identify the same device during their lifetime

If the developer borrows the UUID to achieve the above requirements, the UUID logo will still exist after the application is uninstalled.

The developer can do this with the help of DVID, because the application can access and manage distributed devices based on the DVID

If you use a DVID to achieve the above functions, the DVE is strongly associated with your HarmonyOS account and application information, so you can prevent other applications from accessing the current application data.

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Question 314

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

deviceConfig information

Layout property configuration information

Version information for the app

deviceType

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Question 315

What principles of permission should be followed when developing HarmonyOS applications?

The user can know and control

The permission application is complete

Custom permissions to prevent duplicate names

Permission requests are minimized

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Question 316

HarmonyOS supports the flexible deployment of multiple terminal devices on demand through design methods such as componentization and miniaturization, and can adapt to different types of hardware resources and functional requirements. Which of the following descriptions of elastic deployment are correct?

Clipping of functions within the component is not supported

supports the association of components and dependencies

The selection of each component is not supported

Supports the configuration of the feature set within the component

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Question 317

HarmonyOS is designed for 1+8+N full-scene experience, which of the following devices belongs to the '8' in 1+8+N?

headphones

Microwave oven

Audio

Glasses

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Question 318

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?

is defined in the HiLogLabel

Errno value

Reachable URL value

The log level is WARN

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Question 319

The Minimalist Protocol is a communication protocol customized by HarmonyOS, which layers of the traditional communication protocol are simplified?

Application Layer

Data Link Layer

Transport Layer

represents the layer

network layer

Session Layer

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Question 320

When a developer develops a HarmonyOS application and uses an intent pass object, which of the following descriptions of intent are correct?

does not specify the BundleName and Ability Name to implement the jump, and the application is started according to other attributes in the operation

Specify the BundleName and AbilityName to implement the jump, and start the application directly according to the full name of the Ability

deals with the work of an application as a whole

is a long-lifecycle, D-program with no user interface that keeps the app running in the background and doesn't disappear by switching pages

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