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H14-231_V1.0
HCIP-HarmonyOS Application Developer V1.0 Questions and Answers

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Viewing page 2 out of 14 pages

Viewing questions 16-30 out of questions

Questions # 16:

Encoding is the process of converting information from one form or format to another, which of the following can be encoded?

Options:

text

figures

Image

video

Answer

A, B, C, D

Questions # 17:

What functions does UIAbility's lifecycle include?

Options:

onCreate

onForeground

onBackground

onDestroy

Answer

A, B, C, D

Questions # 18:

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?

indicator="true"autoplay="true"interval="2000"

loop="true"digital="false">

Options:

subassembly loops

subcomponent autoplay

Navigation points can be manipulated

subcomponent autoplay interval 20s

Answer

A, B, C

Questions # 19:

What services will be automatically activated after a HarmonyOS Cloud development project is created?

Options:

SCF

Cloud Database

Cloud storage

Certification services

Answer

A, B, C, D

Questions # 20:

Which of the following functions is a lifecycle function for a custom component?

Options:

aboutToAppear

aboutToDisappear

onPageShow

onPageHide

onBackPress

Answer

A, B, C, D, E

Questions # 21:

What are the following options that belong to the JavaScript UI framework?

Options:

Application Layer

Front-end frame layer

Engine Layer

Platform adaptation layer

Answer

A, B, C, D

Questions # 22:

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

Options:

Before you start Bluetooth scanning, you need to register for a broadcastBluetoothRemoteDevice.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

Answer

A, B, C

Questions # 23:

If an engineer uses the two-way preview function of JavaScript in DevEco Studio, which of the following items can be supported after the function is enabled?

Options:

Component Tree

Code Editor

UI interface

Terminal

Answer

A, B, C

Questions # 24:

What are the reasons why a developer wants to use the previewer in DevEco Studio to view the application interface of the design, but the previewer cannot be used?

Options:

Preview is not supported for files currently open in the editor

SDK has not been updated to the latest version

The previewer resource was not downloaded

Projectis not synchronized successfully

Answer

A, B, C, D

Questions # 25:

When developing HarmonyOS applications, if the client and server need to communicate across processes, you can use idl to define programming interfaces that are recognized by both.

Options:

True

False

Answer

Questions # 26:

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

Options:

IDLE

HIGH

LOW

IMMEDIATE

Answer

A, B, C, D

Questions # 27:

Which of the following components are container components?

Options:

Button

Row

Column

Image

TextInput

Answer

B, C

Questions # 28:

What attributes are supported by attribute animations?

Options:

width

rotate

opacity

scale

Answer

A, B, C, D

Questions # 29:

When an intent is used to initiate a request, a developer designs to open a link through a browser, but does not care which browser application the user ultimately chooses.