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Huawei H14-231_V1.0 Practice Test - Questions Answers, Page 31

Question list

List of questions

Question 301

(0)

When a developer wants to make the vertical scrolling layout take effect when using the ScrollView control, how should the width of the control corresponding to the layout be set?

Question 302

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When a developer is developing an application, he creates a Checkbox component and writes the following code, which of the following descriptions of the code segment is correct? <checkbox ohos:i

Question 303

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A developer designed an application, when the user receives a notification, if the user clicks on the notification, it will jump to a new page, and if the notification is not clicked, the new page w

Question 304

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Distributed task scheduling builds a unified distributed service management (discovery, synchronization, registration, and call) mechanism based on technical characteristics such as distributed soft

Question 305

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Which of the following methods can be used to deal with navigation within the same page?

Question 306

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If a developer wants to use the distributed capabilities of HarmonyOS, which of the following options can the developer choose?

Question 307

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When developing an application, a developer uses the WLANP2P function to realize point-to-point data transmission between devices. The functionality of the application is as follows: Function 1: Dis

Question 308

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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.

Question 309

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What functions does HarmonyOS provide in app data management to enable developers to seamlessly connect app data between different devices?

Question 310

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If a developer develops a HarmonyOS application and remotely launches a Page on phone B, which of the following permissions does not require the user to request authorization by sending a pop-up win

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 301

When a developer wants to make the vertical scrolling layout take effect when using the ScrollView control, how should the width of the control corresponding to the layout be set?

match_child

Fixed width value

match_parent

match_content

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Question 302

When a developer is developing an application, he creates a Checkbox component and writes the following code, which of the following descriptions of the code segment is correct?

<checkbox ohos:id='$+ id:check_box'

ohos:height='match_content'

ohos:width='match_content'

ohos:text='This is a checkbox'

ohos:marked='false'

ohostext_color_on=''#000000''

ohos:text_color_off='#FFFFFF'

ohos:text_size='#000000'/>

sets the selected text color to black

sets the initial state to Selected

Set the text font size to 20fp

sets the color of unselected text to black

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A developer designed an application, when the user receives a notification, if the user clicks on the notification, it will jump to a new page, and if the notification is not clicked, the new page will not be triggered.

NotificationSlot

triggerlntentAgent

setName

setDescription

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Question 304

Distributed task scheduling builds a unified distributed service management (discovery, synchronization, registration, and call) mechanism based on technical characteristics such as distributed soft bus, distributed data management, and distributed profile.

Remote start

Remote connection

Remote migration

Remote call

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Question 305

Which of the following methods can be used to deal with navigation within the same page?

Present()

PresentForResult()

StartAbility()

StartAbilityForResult()

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Question 306

If a developer wants to use the distributed capabilities of HarmonyOS, which of the following options can the developer choose?

Distributed device virtualization

Distributed data management

Distributed soft bus

Distributed task scheduling

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Question 307

When developing an application, a developer uses the WLANP2P function to realize point-to-point data transmission between devices. The functionality of the application is as follows: Function 1: Discover the peer device. Function 2: Create and remove groups. Function 3: Initiate a connection to the peer device. Which of the above features is correct in the following descriptions?

To implement function 2, you need to use the createGroup() and removeGroup( ) interfaces, and you need to request ohos. permission. GET_WIFI_INFO permissions

To achieve function 1, you need to use the discoverDevice() interface, and you need to request ohos. permission. SET_WIFI_INFO Limitations

In order to achieve function 3, the connect() interface needs to be used, and the ohos.permission.SET_WIFI_INFO permissions need to be requested

In order to achieve the above functions, you need to initialize the P2P messenger through the init() interface, and you need to request ohos.permission.GET_WIFI_INFO and ohos.permission.SET_WIFI_INFO permissions

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Question 308

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.

The width of the component is 300vp

Normal font size is 18fp

The height of the C component matches the text size

The selected font size is 16fp

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Question 309

What functions does HarmonyOS provide in app data management to enable developers to seamlessly connect app data between different devices?

Data search service

Local application data management

Data storage management

Distributed data services

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Question 310

If a developer develops a HarmonyOS application and remotely launches a Page on phone B, which of the following permissions does not require the user to request authorization by sending a pop-up window at runtime?

ohos.permission.GET_DISTRIBUTED_DEVICE_INFO

ohos.permission.DISTRIBUTED_DEVICE_STATE_CHANGE

ohos.permission.GET_BUNDLE_INFO

ohos.permission.DISTRIBUTED_DATASYNC

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