Home / Huawei / H14-231_V1.0

Huawei H14-231_V1.0 Practice Test - Questions Answers, Page 48

Question list

List of questions

Question 471

(0)

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(

Question 472

(0)

A developer wants to use the list component of the JavaScript UI framework to display a table. <list class='todo-wraper' scrollpage='true' scrollbar='on' shapemode='round' scrolleffect='no'&

Question 473

(0)

HarmonyOS supports on-demand elastic deployment of a variety of terminal devices.

Question 474

(0)

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 475

(0)

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 a

Question 476

(0)

Which of the following subsystem sets are included in the basic capability subsystem of the HarmonyOS system architecture?

Question 477

(0)

When testing the Bluetooth Low Energy feature of HarmonyOS, a developer needs to make the central device perform Bluetooth scanning. Which of the following descriptions of the developer's actions ar

Question 478

(0)

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.

Question 479

(0)

HarmonyOS provides developers with a HiLog logging system, which of the following log levels are defined in HiLog?

Question 480

(0)

Which of the following functions does the HarmonyOS network management module provide?

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.

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 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?

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 471

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)})

'name_index' is the composite index name

index values are not unique

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

The table is named 'user'.

Show Answer Comment (0)

Question 472

A developer wants to use the list component of the JavaScript UI framework to display a table.

<list class='todo-wraper'

scrollpage='true'

scrollbar='on'

shapemode='round'

scrolleffect='no'>

<list-item for='{{todolist}}'class='todo-item'>

<text class='todo-title'>{{Sitem.title}}</text>

<text class='todo-title'>{{Sitem.date}}</text>

</list-item>

</list>

slides out of the viewport with the non-list part of the page at the top of the list

Displayed when the inverted edge slider is touched, disappears after 2 seconds

The side slider is circular

Swiping to the edge has no effect

Show Answer Comment (0)

Question 473

HarmonyOS supports on-demand elastic deployment of a variety of terminal devices.

supports the configuration of the feature set within the component

does not support the association of dependencies between components

Support the on-demand selection of each component

Clipping of functions within the component is not supported

Show Answer Comment (0)

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 device 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 DVID, as the application can access and manage distributed devices based on the DVID

The developer can use the UUID to do this, because the app can uniquely identify the same device with the UUID during its lifetime

If the developer uses the UUID to achieve the above requirements, the UUID flag will still exist after the application is uninstalled

If the developer uses the DVID to achieve the above functions, the DVID is strongly associated with the HarmonyOS account and application information, so it can prevent other applications from accessing the current application data

Show Answer Comment (0)

Question 475

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?

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

Account is not registered

uses the Chrome browser

The HUAWEI ID is not verified

Show Answer Comment (0)

Question 476

Which of the following subsystem sets are included in the basic capability subsystem of the HarmonyOS system architecture?

Distributed task scheduling

Distributed data management

Media Subsystem

User Program Framework

Show Answer Comment (0)

Question 477

When testing the Bluetooth Low Energy feature of HarmonyOS, a developer needs to make the central device perform Bluetooth scanning. Which of the following descriptions of the developer's actions are correct?

Get scan filter, if the filter is empty, it is not used to scan without filter

calls startScan() to start scanning the Bluetooth device

Before performing Bluetooth scanning, it is necessary to inherit the advertiseCallback class to implement startResultEvent Callback, which is used to receive scan results

Call the BleCentralManager (BleCentralManagerCal1lback callback) API to obtain the device management object

Show Answer Comment (0)

Question 478

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.

Action

AbilityName

Entity

BundleName

Show Answer Comment (0)