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Viewing page 3 out of 14 pages
Viewing questions 31-45 out of questions
Questions # 31:

What development tools do programmers do not need to install when developing HarmonyOS mobile apps?

Options:

A.

HUATEI DevEco Device Tool

B.

HiBurn

C.

DevEco Studio

D.

Visual Studio Code

Questions # 32:

When a developer compiles a project, the compilation fails, and the message "This device type does not match project profile" is displayed, because the device type configured in "config.json" does not match the device type for debugging, and "deviceType" needs to be configured in the "module" tag.

Options:

A.

True

B.

False

Questions # 33:

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?

Options:

A.

file system

B.

Memory management

C.

Peripheral management

D.

Thread management

Questions # 34:

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

Options:

A.

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

B.

Before starting Bluetooth scanning, you need to register to broadcastBluetoothRemoteDevice

EVENT_DEVICE_DISCOVERED

C.

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

D.

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

Questions # 35:

In order to solve the problem of safety risks when walking or cycling, a travel navigation company uses HarmoryOS to push mobile navigation reminders to its watch.

Options:

A.

Distributed data management

B.

Distributed soft bus

C.

Distributed device virtualization

D.

Distributed task scheduling

Questions # 36:

What are the common problems in uploading software packages during the listing process of HarmonyOS applications/metaservices?

Options:

A.

The release profile file in the package does not match the application of the currently uploaded package

B.

The release certificate in the software package does not match the release certificate in the release profile file

C.

Package Unsigned Indicates Illegal Package

D.

The certificate used in the package has expired, and the expired certificate has expired

Questions # 37:

The HarmonyOS Media Management module provides capabilities for audio playback, audio recording, audio and video synthesis, and video decoding.

Options:

A.

True

B.

False

Questions # 38:

What features can developers use to implement collaborative identity authentication through HarmonyOS?

Options:

A.

Secure boot

B.

Zero trust model

C.

Collaborative Mutual Aid Certification

D.

Multi-factor fusion authentication

Questions # 39:

What are the features of Huawei DevEco Studio, which is a multi-device unified development environment?

Options:

A.

Support distributed multi-terminal application development

B.

Support multi-device previewer

C.

Support rapid development of FA (Feature Ability) and PA (Partic1eAbility).

D.

Support multi-device emulators

Questions # 40:

What are the boot modes of UIAbility?

Options:

A.

singleton

B.

specified

C.

multition

D.

Builder

Questions # 41:

What are the scenario-based capabilities included in the HarmonyOS feature?

Options:

A.

One-time development and multi-terminal deployment

B.

can be divided and combined, free circulation

C.

Unified ecology and native intelligence

D.

High-frequency operation to improve efficiency

Questions # 42:

When an engineer compiles and builds a HarmonyOS Ability Package (HAP) with debugging signature information in DevEco Studio, he or she needs to apply for a debugging certificate and profile file in advance.

Options:

A.

SignAlg

B.

Certpath File

C.

Profile File

D.

Store File

Questions # 43:

A developer has multiple versions of the object-relational mapping database, and the developer calls the BOOKstoreUpgrade class to upgrade the database version, and the version number of the BOOKstoreUpgrade class is configured as "3", and the actual version number of the current BOOKstore.db is "1", in this case, TestormMigration12, TestormMigration23 The onMigration method is automatically called to complete the database upgrade.

Options:

A.

True

B.

False

Questions # 44:

The main axis of the Row container is horizontal, and the cross axis is vertical, and its parameter type is VerticalAlign, and VerticalAlign defines the following types?

Options:

A.

Top

B.

Bottom

C.

Start

D.

End

E.

Center

Questions # 45:

Which of the following subsystems in HarmonyOS belongs to the Enhanced Software Services subsystem?

Options:

A.

Wearable business subsystem

B.

Sign-in service subsystem

C.

Smart large-screen business subsystem

D.

Media subsystem

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Viewing questions 31-45 out of questions
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