Huawei H14-231_V1.0 Quiz 1 Topic 1 Questions 1-5

Question: 1

If a HarmonyOS developer has developed multiple applications and ensured that the data between different applications cannot be accessed through the triplet of account, application, and database, which of the following services can the developer use to achieve this function?

ADistributed file services

BDistributed data services

CData search services

DData storage management

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Question: 2

Which of the following descriptions of Harmony OS Data Ability are correct?

AData Ability is used to provide a unified abstraction of data access within and between applications

BData Ability provides interfaces for adding, deleting, modifying, querying, and opening files of data, and the specific implementation of these interfaces is provided by the system

CData Ability can be used for data sharing between apps on the same device and across devices

DUsing Data Ability helps apps manage access to data stored by themselves and other apps, and provides a way to share data with other apps

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Question: 3

Developers can create user interfaces directly on AbilitySlice or on Ability.

ATrue

BFalse

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Question: 4

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

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

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

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

DIf 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

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Question: 5

Which of the following scenarios does not use encoding technology?

Asound travels through twisted pairs

BSound travels through rails

CSound travels by radio

DSound travels through optical fibers

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Huawei H14-231_V1.0 Quiz:1 Topic:1 Questions:1-5