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When adding user information, if the account uses a mobile phone number, which of the following input formats is correct?

A.

86-189****1234

B.

189****1234

C.

+86189****1234

D.

0086-189****1234

HarmonyOS is designed for 1+8+N full-scene experience, which of the following devices belongs to the "8" in 1+8+N?

A.

headphones

B.

Microwave oven

C.

Audio

D.

Glasses

Which of the following features of the HarmonyOS distributed database are correctly described?

A.

depends on the cloud

B.

shields different physical transmission channels

C.

The synchronization logic is completely transparent

D.

The interface is simple, and the backup and encryption features are simple and configurable

In the stage model, what are the following configuration files that belong to the AppScope folder?

A.

main_pages.json

B.

module.json5

C.

app.json5

D.

package.json

Which of the following NFC functions can developers use when developing apps based on HarmonyOS?

A.

NFC message notification

B.

Access to the security element

C.

card emulation

D.

NFC basic query

HarmonyOS supports the flexible deployment of multiple terminal devices on demand through design methods such as componentization and miniaturization, and can adapt to different types of hardware resources and functional requirements. Which of the following descriptions of elastic deployment are correct?

A.

Clipping of functions within the component is not supported

B.

supports the association of components and dependencies

C.

The selection of each component is not supported

D.

Supports the configuration of the feature set within the component

If a developer uses the Text component to develop a UI interface, if the outside of the Text component needs to be left blank, which of the following codes can the developer use?

A.

ohos:top_padding="15"

B.

ohos:top_margin="15"

C.

ohos:top_padding="30"

D.

ohos:top_margin="30"

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.

A.

NotificationSlot

B.

triggerlntentAgent

C.

setName

D.

setDescription

Which of the following resource directories should the pictures, audios, videos and other media files involved in the application development process be placed in?

A.

animation

B.

graphic

C.

media

D.

Element

Whichof the following subsystems in Harmony OS can achieve data isolation between applications?

A.

Location Services subsystem

B.

Safety subsystem

C.

Media Subsystem

D.

AI subsystem

Regarding the ResponseCode returned by the request, which of the following descriptions is incorrect?

A.

AResponseCode.OK has a value of 200, indicating that the request is successful. It is generally used for GET and POST requests.

B.

Avalue of 404 for the B ResponseCode.NOT_FOUND indicates that the server was unable to locate the resource (web page) based on the client's request.

C.

Avalue of 500 for the C ResponseCode.INTERNAL_ERROR indicates an internal server error and the request could not be completed.

D.

Avalue of 404 indicates that the resource requested by the client no longer exists.

Which of the following scenarios is part of the HarmonyOS notification function?

A.

Push version updates

B.

Push advertising messages

C.

Displays received text messages

D.

Instant messaging

When a HarmonyOS developer makes an FA call to PA, the callAbility interface returns the error "Internal ability not register.", which of the following points needs to be checked correctly?

A.

Check whether the Ability entered on the JS side is 1

B.

Check whether the bundleName and abilityName entered on the JS side are the same as those entered in the AcelnternalAbility inheritance class constructor

C.

In the AceAbility inheritance class, the register method is executed for the AcelnternalAbility inheritance class

D.

Check whether the InternalAbility set on the JS side is 0

If a HarmonyOSapplication developer wants to achieve the following effects, which of the following combinations can achieve the effect?

A)

B)

C)

D)

A.

Option A

B.

Option B

C.

Option C

D.

Option D

If a developer uses custom components when developing a HarmonyOS application, what are the correct descriptions of custom components below?

A.

Add tag elements such as styleable and item to values/attrs.xml

B.

In the constructor with the AttrSet parameter of the custom component, useattrSet.getAttr("XxX").get().getStringValue() to get the property

C.

Add xmlns:app="http://schemas.huawei.com/apk/ res/ohos"to the layout.xml of the component definition

D.

In the constructor of the custom component, call array.getlntegor(ResourceManager.styleab1e.***,100)to get the property