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Huawei H14-231_V1.0 Practice Test - Questions Answers, Page 41

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List of questions

Question 401

(0)

In order to complete the release of the application, an engineer needs to apply for a digital certificate, which of the following options is correct about the description of the digital certificate?

Question 402

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Which of the following databases uses SQLite as the persistent storage engine in HarmonyOS data management?

Question 403

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Which of the following options belong to Particle Ability?

Question 404

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In the collaborative office scenario, project the document on the mobile phone to the smart screen, and perform page turning and zoom operations on the document on the smart screen. What distributed

Question 405

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A developer uses the HarmonyOS Bluetooth Low Energy function to achieve cross-distance wireless communication, how does the central device and peripheral devices interact in this scenario?

Question 406

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In the distributed artboard scenario, each device can be displayed synchronously with other devices while writing, what distributed capabilities are used in this scenario?

Question 407

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In order to ensure that the application has better responsiveness, the developer has designed different priorities for tasks A, B, and C. Task A maintains the default priority, Task B has HICH, and

Question 408

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The software engineer will encode the data, which can take two coding methods: ordinary and pipeline, which of the following are the differences between these two coding methods?

Question 409

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DevEco studio provides remote simulator developers to run and debug HMOS applications, which of the following limitations will the remote simulator have?

Question 410

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A developer calls the getDefauitHOST(Context context) interface of Bluetooth HOST to obtain a Bluetooth HOST instance for managing local Bluetooth operations. This developer experiments with the fol

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 401

In order to complete the release of the application, an engineer needs to apply for a digital certificate, which of the following options is correct about the description of the digital certificate?

is in the format of .csr

contains the public key in the key pair

Digital certificates are used to ensure the integrity of the application

is issued by AppGallery Connect

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Question 402

Which of the following databases uses SQLite as the persistent storage engine in HarmonyOS data management?

Relational database

Object-relational mapping database

Lightweight preference database

Distributed data services

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Question 403

Which of the following options belong to Particle Ability?

Particle Ability supports the Service Ability template

Particle Ability supports Data Ability templates

Particle Ability supports Page Ability templates

has the function of running tasks in the background

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In the collaborative office scenario, project the document on the mobile phone to the smart screen, and perform page turning and zoom operations on the document on the smart screen. What distributed capabilities are used in the preceding scenarios?

Distributed Device Virtualization

Distributed Data Service

distributed soft bus

Distributed file services

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Question 405

A developer uses the HarmonyOS Bluetooth Low Energy function to achieve cross-distance wireless communication, how does the central device and peripheral devices interact in this scenario?

After the peripheral device and the central device establish a GATT connection, the peripheral device can query various data supported by the central device

The peripheral device acts as a server and can receive GATT connection requests from the central device

Peripherals are responsible for sending broadcasts

The central device scans peripherals and discovers broadcasts

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Question 406

In the distributed artboard scenario, each device can be displayed synchronously with other devices while writing, what distributed capabilities are used in this scenario?

Distributed Data Service

Virtualization of distributed devices

Distributed file services

Distributed soft bus

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Question 407

In order to ensure that the application has better responsiveness, the developer has designed different priorities for tasks A, B, and C. Task A maintains the default priority, Task B has HICH, and Task C has LOW. Which of the following descriptions of tasks A. B, and C is correct?

Task A and B have the highest priority and have a higher chance of being executed than Tasks A and C

can be inferred from the priority design of the developer, who believes that task B does not need to wait for the result

Tasks A, B, and C should not be issued by the same task dispatcher

Task A has the highest priority and has a higher chance of being executed than Tasks B and C

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Question 408

The software engineer will encode the data, which can take two coding methods: ordinary and pipeline, which of the following are the differences between these two coding methods?

In pipeline mode, the application needs to call the setSource() method of the Source class

In the B pipeline mode, the application must continuously transfer data B to the Code instance

In pipeline mode, it is not necessary for the application to continuously transfer data to the Code instance

In pipe mode, the app is automatically parsed and transferred to the Code instance after it is correctly configured

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Question 409

DevEco studio provides remote simulator developers to run and debug HMOS applications, which of the following limitations will the remote simulator have?

Each session lasts for 1 hour

Real-name login is required

Automatically releases resources when it expires

Automatic remote simulation by default

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Question 410

A developer calls the getDefauitHOST(Context context) interface of Bluetooth HOST to obtain a Bluetooth HOST instance for managing local Bluetooth operations. This developer experiments with the following development steps to implement Bluetooth pairing. 1Turn on Bluetooth, 2Scan Bluetooth3 Initiate pairingWhich of the following statements about steps 1, 2, and 3 are correct?

CALLS STARTPAIR() TO COMPLETE STEP 3

calls enablebt() to complete step 1

CALLS STARTBTDISCOVERY() TO COMPLETE STEP 2

steps 2 and 3 can be reversed in the order D

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