When a developer develops an application based on Harmony OS, one of the HAPs (HarmonyOS Ability Package) needs to access the SQLite database to implement the following functions:Function 1: Create a database.Function 2: Insert data.Function 3: Query data.Which of the following descriptions of the developer's development steps is correct?

The developer can use the getRdbStore interface of the DatabaseHelper class to implement function 1

The developer can use the query() interface provided by the relational database to implement the function 2

The developer can use the getRdbStore interface of the DatabaseHelper class to implement function 1

The developer can use the insert() interface provided by the relational database to implement function 3

Before querying data, you need to construct a predicate object for querying and store it in the form of a ValuesBucket

When a developer installs HAP (HarmonyOS Ability Package), what is the reason for the 'STRING LENGTH ERROR' message?

Package information exceeds the maximum length

Signature information is not configured

Package information exceeds the maximum length

The device type configured in config.json does not match the debugging device type

The compilation and build plugin version does not match the Gradle version

If a developer wants to develop a page with a tab function, the developer can use the TabList component provided by HarmonyOS. If you want to set the selected tab to be marked by underlining at the bottom, which of the following codes is correct?

ohos:tab indicator type='bottom_line'

ohos:tab_indicator_type='invisible'

ohos:tab_indicator_type='left_line'

A developer uses the AI capabilities provided by Harmony OS to achieve the following functions: 1. Perform text detection and recognition of image sources such as document remakes and street view reproductions, and provide translation, search and other related services based on the recognition results. 2. Convert various bills into image information by taking pictures, and then use text recognition technology to convert image information into character information that can be used by computers and other equipment. In order to implement the above functions, which of the following I capabilities is most likely to be used by the developer?

Universal Character Recognition

Text and image super-resolution

A developer uses HarmonyOS to write half of an email on his mobile phone and click the transfer button to the tablet to continue editing the email.

FA (Feature Ability) is migrated across devices

Start Remote PA (Particle Ability)

FA (Feature Ability) is migrated across devices

Connect to the remote PA (Particle Ability).

A developer defines an entity classStudent.java and use the following code to construct the table:@Entity(tableName ='student', ignoredColums=['ignoredColumn1','ignoredColumn2', indices= (@Index(value =('firstName.','lastName',name='name_index', unique = true)))pub1ic class User extends OrmObject{@PrimaryKey(autoGenerate= true)private Integer userld;private String firstName;private String lastName;private int age;private doub1e balance;private int ignoredColumn1;private int ignoredColumn2;}Which of the following descriptions of this code is wrong?

The index value of the composite index 'name_index' is not unique

ignoredColumns' indicates that the field does not need to be added to the attributes of the student table

Doubles creates composite indexes name_index for the 'firstName' and '1astName' fields

The name of the data sheet is 'student'.

The index value of the composite index 'name_index' is not unique

If an engineer needs to determine whether a device supports the corresponding decoder of the specified MIME (Multipurpose Internet Mail Extensions), which of the following interfaces should be selected?

isDecodeSupportedByMime(String mime)

isEncodeSupportedByMime(String mime)

isDecodeSupportedByMime(String mime)

isDecoderSupportedByFormat(Format format)

A HarmonyOS user downloads and installs a new application, which has declared some non-sensitive permissions in the config.json file, and the application may involve some sensitive permissions during running. Which of the following is correct in this scenario?

Non-sensitive permissions declared by the app in the config.json file are automatically granted when the user installs the app

For the non-sensitive permissions declared by the app in the config.json file, the authorization method is user authorization (user_grant)

For the non-sensitive permissions declared by the application in the config.json file, the application will be dynamically applied for during use

For the sensitive permissions that may be involved in the running process of the application, the authorization method is system authorization (system_grant).

Non-sensitive permissions declared by the app in the config.json file are automatically granted when the user installs the app

When a developer specifies a music playback service through an intent when starting a remote service, device A (local device) can start the music playback capability of device B (remote device).

Connect to a remote PA (Particle Ability).

Enable remote FA (Feature Ability).

Connect to a remote PA (Particle Ability).

Start the remote PA (Particle Ability).

Particle Ability (PA) of the Guantuan

The developer uses device A (local device) to control device B (remote device) to open the album, which distributed task scheduling capability is used in this scenario?

Enable remote FA (Feature Ability).

Connect to a remote PA (Particle Ability).

Start the remote PA (Particle Ability).

The engineer fails to access the network through the get request, and the prompt 'Attempt to invoke virtual method' is displayed, which of the following permissions should be configured in config.json?

harmonyos. permission. INTERNET

harmonyos. permission. ACCESS_NETTORKSTATE

The distributed soft bus is the base for communication between various devices, which of the following does not belong to the bus hub of the distributed soft bus?

Interconnection Management Center

In what form will the application package of Harmony OS be released and put on the shelves?

HAR(HarmonyOS Ability Resources)

HAP (HarmonyOS Ability Package)

In a HarmonyOS application, which of the following and the ComponentContainer object are actually composed of the interface elements that the user sees?

TableLayout Topic 2, Exam Pool B

When a company is developing a HarmonyOS application, it needs to customize an artboard control, how to get the X coordinates of the current touch point in the whole screen during the listening of touch events?

touchEvent.getPointerPosition(touchEvent.getlndex()).getX()

touchEvent.getPointerScreenPosition(touchEvent.getIndex()).getX()

touchEvent.getPointerPosition(touchEvent.getltem()).getX()

touchEvent.getPointerScreenPosition(touchEvent.getltem()).getX()

touchEvent.getPointerPosition(touchEvent.getlndex()).getX()

An engineer uses a local simulator for application debugging, which of the following describes the wrong local simulator?

The local emulator can run and debug HarmonyOS applications for LiteWearable and Smart Vision devices

You can run both the application-compatible signed and unsigned HAP (HarmonyOS Ability Package) on the local simulator

By default, DevEco Studio does not automatically match the corresponding device emulator

The default shortcut to start running is Shift+F10

The local emulator can run and debug HarmonyOS applications for LiteWearable and Smart Vision devices

Which of the following is all the components of the HAP package in HarmonyOS?

Logical code, resource files, third-party libraries, and application configuration files

Logical code, resource files, third-party libraries, application configuration files, pack.info

Logical code, resource files, third-party libraries, and application configuration files

Logical code, resource files, application configuration files

If a developer wants to quote the resource files in the base directory and the qualifier directory, which of the following can be used to do so?

Specify the resource type and resource name

Specify the resource type and resource size

Specify the resource type and resource name

When a developer is developing a UI, he writes the following code, which of the following is the correct implementation effect?

Text wraps automatically and keeps the upper and lower widths

The two words 'classmate' are evenly distributed horizontally on two lines

Text wraps automatically and keeps the upper and lower widths

The four characters 'Hello classmates' are evenly distributed vertically on a column

The 4 words 'Hello classmates' are evenly distributed horizontally on one line

Huawei H14-231_V1.0 Practice Test 5 - Free Online Exam Prep & Questions

Which of the following does not belong to the system service layer in the HarmonyOS system architecture?

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