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

Bluetooth device scan can be initiated through the startBtDiscovery() interface

Before starting Bluetooth scanning, you need to register to broadcast BluetoothRemoteDevice EVENT_DEVICE_DISCOVERED

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

Bluetooth device scan can be initiated through the startBtDiscovery() interface

Before starting Bluetooth scanning, you need to register to broadcast BluetoothRemoteDevice EVENT_DEVICE_DISCOVERED

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

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

What are the following types of task dispensers that HarmonyOS provides for developers?

Global Concurrent Task Dispenser

A developer uses the JavaScript UI framework's swiper sliding container to develop a banner scrolling effect, which are the correct items in the following description of the swiper code?<swiper class='swiper'id='swiper'index='0'indicator='true'autoplay='true'interval='2000'loop='true'digital='false'></swiper>

Navigation points can be manipulated

subcomponent autoplay interval 20s

Which of the following information is contained in moduleJSON5 under entry?

Application list for application permissions

Application package name and version number information

Application list for application permissions

The following description of the basic components of the ArkTS declarative development paradigm is correct

Decorator: Used to decorate classes, structs, methods, and variables to give them a special meaning, e.g. @Entry indicates that this is an entrance component.

Custom components: Reusable UI units that can be combined with other components.

UI Description: A declarative method to describe the structure of the UI, such as a code block in the build() method.

Built-in components: Built-in basic components and layout components in ArkTS by default, such as Column, Text, Divider, Button, etc., can be called by developers.

attribute method: used to configure component attributes, which are set through attribute methods, such as fontSize(), width(), height(), color(), etc.

Event method: It is used to add the component's response logic to the event, which is set through the event method, such as onClick() following the Button.

Decorator: Used to decorate classes, structs, methods, and variables to give them a special meaning, e.g. @Entry indicates that this is an entrance component.

Custom components: Reusable UI units that can be combined with other components.

UI Description: A declarative method to describe the structure of the UI, such as a code block in the build() method.

Built-in components: Built-in basic components and layout components in ArkTS by default, such as Column, Text, Divider, Button, etc., can be called by developers.

attribute method: used to configure component attributes, which are set through attribute methods, such as fontSize(), width(), height(), color(), etc.

Event method: It is used to add the component's response logic to the event, which is set through the event method, such as onClick() following the Button.

Regarding the Tabs component and the TabContent component, the following description is correct

TabContent component does not support setting a generic width property, and its width is equal to the barWidth property of the Tabs component.

The TabContent component does not support setting the general height attribute, and its height is determined by the height of the parent Tabs and the height of the TabBar component.

TabsController is used to control tabs to switch between tabs, and does not support one tabscontroller to control multiple tabs.

The tabBar property of the TabContent component supports components generated using the @Builder constructor.

TabContent component does not support setting a generic width property, and its width is equal to the barWidth property of the Tabs component.

The TabContent component does not support setting the general height attribute, and its height is determined by the height of the parent Tabs and the height of the TabBar component.

TabsController is used to control tabs to switch between tabs, and does not support one tabscontroller to control multiple tabs.

The tabBar property of the TabContent component supports components generated using the @Builder constructor.

The description of the ForEach(arr,itemGenerator,index) component is correct

The first parameter must be an array, providing a data source for circular rendering.

The second parameter generates the lambda function of the child component, which generates the child component for each array item in the data source.

The third parameter is an anonymous function that generates a unique and stable key value for a given array item.

ForEach can loop through logical code, such as console.info ('hello').

The first parameter must be an array, providing a data source for circular rendering.

The second parameter generates the lambda function of the child component, which generates the child component for each array item in the data source.

The third parameter is an anonymous function that generates a unique and stable key value for a given array item.

How do I create a new project in DevEco Studio?

If you have a project open, select 'file>new>Create Project from the DevEco Studio menu

If you open DevEco Studio for the first time, click 'Create new Project' on the welcome page

Create a new file on your computer and name it 'new harmonyOS project'

If you have a project open, select 'file>new>Create Project from the DevEco Studio menu

If you open DevEco Studio for the first time, click 'Create new Project' on the welcome page

Create a new project without having to rename it

What is the correct position setting for the Tabs tab described below?

When barPosition is set to Start (default) and vertical property is set to false (default), the tab is located at the top of the container.

When barPosition is set to Start (default) and vertical property is true, the tab is located on the left side of the container.

When barPosition is set to End and vertical property is set to false (the default value), the tab is located at the bottom of the container.

If barPosition is set to End and vertical property is set to true, the tab is located on the right side of the container.

When barPosition is set to Start (default) and vertical property is set to false (default), the tab is located at the top of the container.

When barPosition is set to Start (default) and vertical property is true, the tab is located on the left side of the container.

When barPosition is set to End and vertical property is set to false (the default value), the tab is located at the bottom of the container.

If barPosition is set to End and vertical property is set to true, the tab is located on the right side of the container.

Which of the following properties or events does the web component support?

javaScriptAccess(javaScriptAccess: boolean)

onConfirm(callback:(event?:{url:string; message:string; result:JsResult })=> boolean)

javaScriptAccess(javaScriptAccess: boolean)

on(type:'headerReceive',callback: AsyncCallback):void

onConfirm(callback:(event?:{url:string; message:string; result:JsResult })=> boolean)

What is the correct description of the http module?

HTTP requests support common request methods, such as get, post, and put.

can use on(headersReceive') to subscribe to the request response header.

The parameters of the post request can be specified in extraData.

After the createHttp command is successfully executed, an httpRequest object is returned, which includes the request, destroy, on, and off methods.

HTTP requests support common request methods, such as get, post, and put.

can use on(headersReceive') to subscribe to the request response header.

The parameters of the post request can be specified in extraData.

After the createHttp command is successfully executed, an httpRequest object is returned, which includes the request, destroy, on, and off methods.

What is correct about Web Component Description A?

web component is a component that provides the ability to display web pages.

The incoming address of a web component can be a local resource or a network resource.

WebController can control various behaviors of web components, such as the forward and backward functions of web pages.

When accessing online web pages, you need to add network permissions.

web component is a component that provides the ability to display web pages.

The incoming address of a web component can be a local resource or a network resource.

WebController can control various behaviors of web components, such as the forward and backward functions of web pages.

When accessing online web pages, you need to add network permissions.

Which of the following statements is correct?

Preference is to access data in the form of Key-Value

The number of data stored in the preference is recommended not to exceed 10,000

The key of the preference is of type String

preference follows the ACID characteristic

Preference is to access data in the form of Key-Value

The number of data stored in the preference is recommended not to exceed 10,000

The key of the preference is of type String

Which of the following statements is true about the use of the previewer?

In the process of developing UI code, if you add or remove UI components, you only need to Ctrl+S to save them, and then the previewer will immediately refresh the preview result

On the previewer interface, you can operate the interface interaction actions of the application/service in the previewer, such as clicking, jumping, swiping, etc., which is consistent with the interface interaction experience of the application/service running on the real device

Component previews are implemented by adding annotations @Preview front of the component

The page preview is achieved by adding annotations to the header of the ETS file @Entry the project

In the process of developing UI code, if you add or remove UI components, you only need to Ctrl+S to save them, and then the previewer will immediately refresh the preview result

On the previewer interface, you can operate the interface interaction actions of the application/service in the previewer, such as clicking, jumping, swiping, etc., which is consistent with the interface interaction experience of the application/service running on the real device

Component previews are implemented by adding annotations @Preview front of the component

The page preview is achieved by adding annotations to the header of the ETS file @Entry the project

What are the parts of the HarmonyOS cloud development project?

end development project (Application)

Public Resource Library (Resource)

Huawei H14-231_V1.0 Practice Test 13 - Free Online Exam Prep & Questions

Spam

Selling illegal goods, money scams etc.

Hate Speech

Serious attack on a group.

Harassment and bullying

Harassing an individual (including doxing)

Harmful activities

Threatening or glorifying violence or serious harm, including self-harm

Adult content (Consensual)

Nudity/Sexual content

Sexual exploitation and abuse (child safety)

Sexually explicit or suggestive imagery or writing involving minors

Sexual exploitation and abuse (adults and animals)

Sexually explicit or suggestive imagery or writing involving non-consenting adults or non-humans

Plagiarism

Reusing content without attribution (link and blockquotes)

Poorly written

Not in English or has very bad formatting, grammar, and spelling

Inappropriate credential

Author's credential is offensive, spam, or impersonation

Other

Ex. Illegal content, incomplete question...

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