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Huawei H14-231_V1.0 Practice Test - Questions Answers, Page 47

Question list

List of questions

Question 461

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Which of the following service management mechanisms does HarmonyOS's distributed task scheduling consist of?

Question 462

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HarmonyOS adopts a multi-core design, which supports the selection of appropriate OS kernels for different resource-constrained devices, and which of the following capabilities does the kernel provi

Question 463

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The main function of EventHandler is to deliver InnerEvent events or Runnable tasks to other threads for processing.

Question 464

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HarmonyOS is classified according to the size of the device's memory, which of the following categories can be divided into?

Question 465

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Mobile terminal devices have penetrated into all aspects of people's daily life, such as checking the weather, news and anecdotes of the city, traveling taxi, travel navigation, and sports records.

Question 466

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Relational databases provide the ability to add, delete, modify, and query local data.

Question 467

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To publish an app, a HarmonyOS developer needs to use a certificate request file (Cerificate Signing Request) to apply for a digital certificate from AppGallery Connect.

Question 468

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When developing an application, a developer uses the WLAN P2P function to realize point-to-point data transmission between devices. Function 2, Create and remove groups, Function 3, Initiate a conne

Question 469

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Which of the following descriptions of traditional Bluetooth operation is correct for HarmonyOS devices?

Question 470

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Which of the following can set the rounded corner effect of the ShapeElement?

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 461

Which of the following service management mechanisms does HarmonyOS's distributed task scheduling consist of?

Service Registration

Service discovery

Service calls

Service synchronization

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HarmonyOS adopts a multi-core design, which supports the selection of appropriate OS kernels for different resource-constrained devices, and which of the following capabilities does the kernel provide for the operating system?

file system

Memory management

Peripheral management

Thread management

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Question 463

The main function of EventHandler is to deliver InnerEvent events or Runnable tasks to other threads for processing.

IDLE

HIGH

LOW

IMMEDIATE

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Question 464

HarmonyOS is classified according to the size of the device's memory, which of the following categories can be divided into?

Small system equipment

Large-scale system equipment

Lightweight system equipment

Standard system equipment

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Question 465

Mobile terminal devices have penetrated into all aspects of people's daily life, such as checking the weather, news and anecdotes of the city, traveling taxi, travel navigation, and sports records. These accustomed activities are inseparable from locating the location of the user's terminal equipment. What positioning technologies does HarmonyOS's location services subsystem provide?

GPS

Beidou

WLAN

Base Station

Bluetooth

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Question 466

Relational databases provide the ability to add, delete, modify, and query local data.

corresponds to the interface where data is inserted, and returns the line number of the latest inserted data when the insertion is successful, and 0 when it fails.

For interfaces that update data, the return value indicates the number of rows affected by the update operation, and returns 0 if the update fails.

For interfaces that delete data, the return value indicates the number of deleted data rows, and if the deletion fails, it returns 0.

For APIs that query data, you cannot run native SQL statements for query operations

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Question 467

To publish an app, a HarmonyOS developer needs to use a certificate request file (Cerificate Signing Request) to apply for a digital certificate from AppGallery Connect.

Name of the organization

Common name

Public key

Organizational unit

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Question 468

When developing an application, a developer uses the WLAN P2P function to realize point-to-point data transmission between devices. Function 2, Create and remove groups, Function 3, Initiate a connection to the peer device.Which of the above functions is correct in the following descriptions?

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

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

In order to implement feature 3, connect() needs to be used, and ohos.permission.SET_WIFI_INFO permission needs to be requested

To implement function 1, you need to use the discoverDevices() interface, and you need to request the ohos.permission.SET WIFI INFO permission

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Question 469

Which of the following descriptions of traditional Bluetooth operation is correct for HarmonyOS devices?

Before you start Bluetooth scanning, you need to register for a broadcast BluetoothRemoteDevice.EVENT_DEVICE_DISOOVERED

can initiate a Bluetooth device scan through the startBtDiscovery() interface

If you want to get the scanned device, you must inherit the onReceiveEvent (CommonEventData data) method that implements the CommonEventSu business scriber class when you register the broadcast, and receive the EVENT_DEVICE_DISCOVERED broadcast

You can use the getLocalName() interface to check whether Bluetooth is turned on

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