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Huawei H14-231_V1.0 Practice Test - Questions Answers, Page 29

Question list

List of questions

Question 281

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A HarmonyOS application developer creates two pages, indlex and detai1, so that the two pages jump to each other. The code of the index page is as follows, which of the following descriptions are co

Question 282

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What are the following types of transition animations in the declarative development paradigm?

Question 283

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Which of the following APIs can I use to query the information of Ability?

Question 284

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In the declarative development paradigm, which of the following rules about the constructor method initializes member variables is wrong?

Question 285

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What are the following advantages of the HarmonyOS forwarding architecture?

Question 286

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Which of the following operations can be performed through the @ohos.systemTime module?

Question 287

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The declarative development paradigm based on TS extensions provides a series of basic components, the following code describes the structure of a simple page, read this code, which of the following

Question 288

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

Question 289

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What are the following aspects of resource utilization analysis that DevEco Studio Performance Analyzer can perform?

Question 290

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Which of the following breakpoint management functions does the JS code type support?

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 281

A HarmonyOS application developer creates two pages, indlex and detai1, so that the two pages jump to each other. The code of the index page is as follows, which of the following descriptions are correct?

Text component is used to mark the current page

When you click the button, the lunch event will be triggered

The Text component is used to jump to and from two pages

The Button component is used to jump to and from two pages

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Question 282

What are the following types of transition animations in the declarative development paradigm?

page transition

Transitions between applications

Share element transitions

Transitions within an assembly

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Question 283

Which of the following APIs can I use to query the information of Ability?

bundleManager.queryAbilityByWant

BundleManager.getApplicationInfo

BundleManager.getAbilitylnfo

BundleManager.getBundlelnfo

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Question 284

In the declarative development paradigm, which of the following rules about the constructor method initializes member variables is wrong?

The parent component's regular variables cannot be used to initialize @Link or @Prop variables

@StorageLink and @StorageProp are allowed to be passed from the parent component to the child component

The @Prop variable of the parent component can initialize the eState or @Link variable of the child component

The @State variable of the parent component cannot initialize the @State variable of the child component

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Question 285

What are the following advantages of the HarmonyOS forwarding architecture?

Support remote service invocation and other capabilities, which can easily design business.

Support different forms of devices, such as mobile phones, tablets, TVs, watches, etc.

Unified flow management UI, supporting device discovery, selection, and task management.

Support multiple applications to be forwarded at the same time.

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Question 286

Which of the following operations can be performed through the @ohos.systemTime module?

Set the system time

Set the system alarm

Set the system period

Set the system time zone

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Question 287

The declarative development paradigm based on TS extensions provides a series of basic components, the following code describes the structure of a simple page, read this code, which of the following are built-in components?