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

If a developer uses the DevEco Studio tool for application development, which of the following commissioning methods does the tool support?

JavaScriptUl does not support async and await syntax.

The KV data model is a SQL-type database whose data is organized, indexed, and stored in the form of key-value pairs.

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

Which of the following functions does the HarmonyOS network management module provide?

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?

Which modules in the following figure can be installed and operated independently?

Which of the following subsystem sets are included in the basic capability subsystem of the HarmonyOS system architecture?

When developing a HarmonyOS application, a developer receives the following product request: If a user logs in to the same HarmonyOS account on device A and device B, the user can log in to the app on device A and synchronize the application account authentication information to device B as needed. After the account authentication information is synchronized, the user can open the application on device B and log in directly without entering the application account authentication information again. Which of the following descriptions of this scene is correct?

When using EventHandler to implement thread interrogation communication, if EventRurner takes out the InnerEvent event, EventRunner will directly process the event on the new thread.

Which of the following decorators can be used to manage the state of variables in custom components?

HarmonyOS single-version distributed databases do not enable automatic synchronization between networked devices by default, but you can enable automatic synchronization if necessary.

A developer needs to use the emulator in DevEco Studio, click to log in to the emulator and enter your HUAWEI ID, and the browser will directly jump to the real-name authentication interface. What are the reasons for this problem?

The description of the ForEach(arr,itemGenerator,index) component is correct

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.

When using DevEco Studio for debugging, you need to check the properties in configjson regardless of whether you use a real machine or an emulator.

If a developer needs to use the JavaScript UI framework to display the bar chart of the month's product sales, he can use the chart component to implement this function.

HarmonyOS maintains a stack of AbilitySlice instances for each Page, and each AbilitySlice instance that enters the foreground will be added to the stack.

API9 and above, router.pushUrl() method mode parameter can be configured to which of the following modes used by the jump page?

What capabilities does the public event service provide for the application?

A developer needs to read the resource file in the rawfile folder, and the following code can be used to read it successfully.

Image

image(Image)findComponentByld(ResourceTable.Id_component_image);

Image.setPixelMap (ResourceTable.Media hawei);

Which of the following components are container components?

What are the componentization characteristics of custom components?

When a user is on a video call,Want to migrate the mobile phone video to the smart screen for playback,When clicking Migrate,Find that the smart screen is already in theoptional list,What are the correct descriptions of the scene?

When a developer uses HarmoyOS system security, which of the following functions makes the device have the ability to prove its security to other virtual devices?

When a developer is developing an application, he uses DevEco Studio to create an empty Java project, but does not install Node.js separately, and can still develop the project normally.

Which of the following service management mechanisms does HarmonyOS's distributed task scheduling consist of?

What are the life cycle states of UIAbility?

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

Which of the following statements is correct?

Which of the following are the lifecycle callback functions of Ability?

Which of the following methods can a developer use to obtain the actual pixel size corresponding to 8VP on the current device?

In the JavaScript FA development self-record, the file ending hml is used to describe the current page layout structure, the components used in the page, and the hierarchical relationship between these components, and the following code should be placed in the file.

When a developer develops a social application, he needs to develop a plug-in that generates a contact QR code. In this scenario, the developer can use the code generation Al capability provided by HarmonyOS, which can return the corresponding QR code image byte stream based on the given string information.

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?

If a developer wants to implement the page swiping function in an application, which of the following components can be used to implement the function?

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

A developer wants to use the list component of the JavaScript UI framework to display a table.

scrollpage="true"

scrollbar="on"

shapemode="round"

scrolleffect="no">

{{Sitem.title}}

{{Sitem.date}}

Which of the following properties of state decorator decorating must be initialized locally?

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.

In HarmonyOS, when a subscription action is performed after an out-of-order public event is published, subscribers can also receive the out-of-order public event.

The network management module of HarmonyOS provides a data networkmanagement function, which can effectively manage HTTP caches to reduce data traffic.

Which of the following service SDKs has been integrated with device-cloud integration?

To publish a public event with permissions in HarmonyOS, you need to set subscriber permissions in the code.

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

When developers use HarmonyOS distributed terminals, which of the following items can ensure that the system is safe and reliable?

HarmonyOS is classified according to the size of the device's memory, which of the following categories can be divided into?

HarmonyOS supports on-demand elastic deployment of a variety of terminal devices.

Barrier-free color palettes should meet the identification needs of color blindness, and safe color palettes can be found by simulating the visual effects of different similar color defects.

When a developer is developing a smart home application, the Switch component will be used to represent the switch of some devices, and ON should be displayed on the ON status component, and 0FF should be displayed on the closed state component. You can use the following code to meet your needs:

Switch btnSwitch=

(Switch)findComponentByld(ResourceTable.

ld_btn_switch);

btnSwitch.setStateOffText("ON");

btnSwitch.setStateOnText("OFF");

If a developer wants to develop an application on a smart screen, which of thefollowing subsystems will he use?

Suppose that multiple AbilitySlice are associated in MainAbility, and multiple AbilitySlice are switched in the same page, the lifecycle of MainAbility and all AbilitySlice is synchronized.

HarmonyOS's relational database and object relational mapping database are both based on SQLite.

When a developer starts a music player on a remote device, he or she may not fill in the Deviceld of the remote device.

HarmonyOS maintains a stack of AbilitySlice instances for each Page, and each AbilityS1ice instance that enters the foreground will be added to the stack.

In the HarmonyOS system architecture, the distributed data management module belongs to the framework layer.

In HarmonyOS, by default, the UI interface is displayed and updated in the main thread

A home appliance manufacturer used HarmonyOS to produce a high-end refrigerator with a display (256MB of memory), which is not part of HarmonyOS's standard system device.

In HarmonyOS's "1+8+N" strategy, smart microwave oven devices belong to "N" devices.

A developer needs to make a list of the minimum necessary permissions for the application he develops. If the minimum necessary permissions list is output correctly, the lack of one of these permissions will cause the application-related services to be unable to implement or run normally.

The lightweight preference database is a non-relational database, which mainly provides lightweight key-value operations and supports local applications to store a large amount of data. If a HarmonyOS developer uses a lightweight preference database to save data, the data will be stored in a local file and will not be loaded into memory.

After the page is jumped or overwritten, it will enter the INACTIVE state, but the resources will not be released, and when the page switches back to the ACTIVE state, the click event will still respond normally.

A HarmonyOS developer uses syncDispatch to synchronously dispatch tasks when developing applications. In this scenario, syncDispatch dispatches the task and waits for the task to complete on the current thread, so the current thread is not blocked until it returns.

When a developer develops an application based on HarmonyOS, the data used by a developer can be decomposed into multiple objects. The developer needs to add, delete, modify, and check the teaching data, but does not want to write overly complex SQL statements. In this scenario, the developer can use an object-relational mapping database to process the data.

If you need to use a composite animation, you can combine multiple animation objects and add them to the AnimatorGroup. AnimatorGroup provides two methods: runserially() and runParallel(), which indicate that the animation starts sequentially and the animation starts at the same time, respectively

HarmonyOS's distributed soft bus enables distributed management of application data and user data.

HarmonyOS provides the NFC message notification function, through which developers can obtain the message of the NFC switch state change and the NFC field strength message.

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.

The ListContainer grid layout can be realized through the setLayoutManager() method

A developer wants to use macOS for HarmonyOS application development, but the development tool DevEco Studio does not support macOS installation.

When installing the HarmonyOS application development environment, if the network can directly access the Internet, developers need to set up Gradle and NPM agents to configure the development environment correctly.

When an engineer packages an application, DevEco Studio will package all the HAP (HarmonyOS Ability Package) modules in the project directory into the application, so if there are HAP modules in the project directory that do not need to be packaged into the application, the tool will automatically delete them and then compile and build the application.

In multiple distributed devices with the same HarmonyOS account, after logging in to an app, the app can synchronize the app account authentication information (account name, token or other) to other devices as needed.

In the Javascript UI framework, to realize the jump between pages, you need to specify the uri in the page routing router to find the target page.

In order to improve the image quality of network source images, developers can use the Instant Messaging (IM) class intent recognition interface provided by HarmoyOS.

A developer needs to use the JavaScript UI framework to display the bar chart of the current month's product sales, and can use the chart component to achieve this function.

The user application package of HarmonyOS may not contain a HAP package of the feature type.

Sservice Abilit calls the onCommand() method after the creation is completed, and the method can be called once when the client starts the service for the first time, and there is no need to call it again in the future

HarmonyOS provides the Al capability of Instant Messaging (IM) intent, which can convert speech signals into text or commands, and identify the user's intent represented by the message content.

A Page Instance can contain a group of related pages, and each page is represented by an AbilitySlice instance.

The input division method of HarmonyOS is different from that of traditional operating systems, and multi-dimensional inputs will be integrated, so that developers can use application frameworks, UI components or interfaces that come with the system to implement applications with multi-dimensional and natural interaction characteristics.

When a developer uses mobile phones and smart screens to develop applications, he can select two device types, smartphones and smart screens, in the AppGallery project.

When users use mobile phones, they will find that the phone number in the text message is often highlighted, and they can dial directly. This is a typical application scenario for entity recognition Al.

Intent is a carrier for transmitting information between objects.

The distributed data management of HarmoryoS is based on the distributed soft bus to realize the distributed management of application data and user data.

The following code snippet is used to start the Service of the remote device, if it is replaced with the Service.withDeviceld("deviceld") that starts the local device, it can be deleted.

Intent intent =new Intent();

Operation operation =new Intent.OperationBuilderO

.withDeviceld("deviceld")

.withBundleName

("com.domainname.hiworld.himusic")

.withAbilityName("com.domainname.hiworld.himusic.ServiceAbility")

.withFlags(Intent.FLAG_ABILITYSLICE_MULTI_DEVICE)

.bui1d();

intent.setOperation(operation);

startAbility(intent);

HarmonyOS not only has the system capability of a single device, but also supports deployment on multiple devices with different memory sizes based on the same set of system capabilities

The network management module of HarmonyOS can realize the communication between different processes of the machine, and the communication supports streaming socket technology.

The MainAbility of a HarmonyOS application has multiple AbilitySlices, and when the AbilitySlice health state is switched, the MainAbility state is INACTIVE.

Although a Page can contain multiple AbilitySlices, when a Page enters the foreground, the interface displays only one Abilitylice by default.

A manufacturer uses the HarmonyOS system to produce a smart oven, which is a lightweight system device in HarmonyOS.

In HarmonyOS, both relational databases and object-relational mapping databases can use SQL statements to manipulate databases.

HarmonyOS supports entity recognition, which can highlight relevant entity information and set up quick operation entrances. For example, the phone number in this message will be highlighted, and the user can dial it directly.

The callback mechanism provided by the Ability class can allow the Page instance to switch with the user's operation background

On the basis of the supported input events, HarmonyOS's multi-dimensional input defines some input actions commonly used by users as a set of standardized events, maps the input events of different input devices to the standardized events, and can obtain a unified experience when using multiple input devices to operate different terminal devices or applications.

If a third-party application has registered the callback of the airplane mode setting item in advance, when the user modifies the airplane mode status of the terminal through the system settings, the application will detect the change of this setting item and adapt it. If the airplane mode is detected to be turned off, the app will go offline, and if the airplane mode is detected and turned on, the app will recapture the online data.

With the help of HarmonyOS's Al capability, it can detect and recognize the text of image sources such as document remakes and street view reproductions, and can also be integrated into other applications to provide text detection and recognition functions, and provide translation, search and other related services based on therecognition results. This is by taking advantage of the super-resolution of text and images in AI.

Before starting the debugging of the Entry module, the engineer needs to check whether the "visible" attribute exists in the config.jsnabilities array in the config.jsnabilities file under the Entry module, and if it does not exist, it needs to be added manually, otherwise the debugging of the Entry module cannot enter the breakpoint.

In JavaScript UI development, for wearable projects and TV projects, the name of the homepage can be not index, and the first page in the pages configuration list is the homepage; for the litewearable project, the name of the homepage must be index.

The Service Ability created by a developer does not have a user interface. Can be launched by other apps. When the user switches to another application, the Service will be killed in the background.

If a developer wants to develop a file background download function, there needs to be a Page Ability to provide U pages, and a Service Ability to provide the background file download function. If you want to perform some operations after connecting to the Service Ability in the Page Ability, you need to implement the onAbilityConnectDone() method in the Page Ability.

Lightweight data storage is suitable for data storage involving a large number of data relationships and business relationships, and has better read and write performance than relational databases and object-relational mapping databases.

The data generated by a developer's use of Data Ability can be shared between different applications on the same device, but cannot be shared across devices.

What is the process of cross-terminal migration from an application on HarmonyOS device A to the application on device B by calling the distributed task scheduling capability to continue sbility?

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

When I use the interface to set the system time in HarmonyoS, which of the following is the smallest time unit?

When a developer specifies a music playback service through an intent when closing a remote service, the developer can realize the ability to disable music playback on remote devices.

A developer needs to cancel a task, but part of the code segment he wrote was deleted by mistake. The remaining codes are as follows, with the missing codes indicated by the dash:

TaskDispatcher dispatcher =

getUlTaskDispatcher();

Revocable revocable =

________________________(new Runnable(){

@Overide Public void run(){

HiLog.info(L . ABEL_ _LOG,"delay dispatch");

}

},10);

Boolean revoked = revocable.revoke();

HiL og.info(L _ABEL_ LOG),"%{public}b" ,revoked);

Which of the following might be missing pieces in the above code?

If a developer wants to use the JavaScript UI framework to develop a graffiti application that allows users to draw custom graphics, which of the following components can be used by the developer?

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 color of unchecked text to black. Which of the following codes is correct?

A developer defines an entity class

Student.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?

When the user clicks on a song from the music list page and jumps to the playback interface of the song, the principle is that the page route routes to the destination page according to which of the following?

In the JS (JavaScript) UI framework, which layer is used to complete the front-end page parsing?

If a developer wants to develop a file background download function, there needs to be a Page Ability to provide UI pages, and a Service Ability to provide the background file download function. Which of the following can invoke Service Ability in Page Ability?

If a HarmonyOS engineer is about to debug a HarmonyOS application on an emulator device, which of the following debugging processes is correct?

Which of the following products belongs to the security products in the smart homeecology?

Thedefault size of shared memory in Harmony OS is ?

The HarmonyOS video module supports the development of video services and the opening of the ecosystem, allowing developers to easily play, operate, and develop new functions of video media through the open interfaces. Video playback includes playback controls, playback settings, and playback queries, such as start/stop playback, playback speed settings, and whether to loop playback. When developing a video playback feature, which of the following steps is correct?

When the system destroys a page, which of the following callback methods will be triggered?

Which of the following belongs to the lifecycle of starting a Service Ability?

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

In HarmonyOS, which of the following scenarios is the application responsible for instantiation?

A developer is developing a ticket booking application, in the selection of the location of the ticket, you need to use the slide selector Picker, in order to highlight the selected text, the developer sets the rendering effect that the selected text margin is greater thanthe ordinary text margin. Which of the following settings are correct?

In order to cope with complex application business logic, a developer needs to create multiple threads to perform multiple tasks. In this case, the code is complex and difficult to maintain, and the interaction between tasks and threads becomes more complex. To solve this problem, which of the following interfaces can the developer use to distribute different tasks?

When a developer migrates pictures on his mobile phone to a large screen, the interface layout automatically switches from vertical to horizontal; When the image is migrated, the image is migrated from the large screen to the mobile phone, and the interface layout is automatically switched from horizontal to vertical. Excuse me, how did this developer implement this feature?

Which of the following is NOT part of the software exposure capabilities provided by HarmonyOS Connect?

The permission scope of HarmonyOS refers to whichapplications can apply for a permission, which of the following fields does not belong to the permission open scope?

A developer defines an entity class Student.java and uses the following code to construct a teaching table:

Entity(tableName="student",ignoredColums =["ignoredColumn1"," ignoredColumn2", indices =(@Index(value =("firstName." ,"lastName",name="name_index", unique = true)))

Public class User extends OrmObject{

@PrimaryKey(autoGenerate= true)

Private Integer userld;

Private String firstName;

Private String lastName;

Private int age;

Private double balance;

Private int ignoredColumnl;

Private int ignoredColumn2;

}

Which of the following descriptions of this code is wrong?

fter a developer sets :ohos:layout_alignment="horizontal_center" in the Text component, he writes: text.setMarginRight (600) in the code, where is the Text displayed in the parent layout?

If a HarmonyOS developerhas 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?

When a developer installs HAP (HarmonyOSAbility Package), what is the reason for the "STRING LENGTH ERROR" message?

If a developer needs to solve problems such as insufficient image resolution and image compression noise, which of the following AI capabilities can be used by HarmonyOS?

When a developer needs to create a Service Ability when developing a background service, which of the following processes is NOT the step to create the Ability?

In the declarative development paradigm, which of the following decorator decorated state variables needs to be initialized locally, and the initialized value can be overridden by the construction parameters?

Which of the following descriptions of Page and AbilitySlice is correct?

The logs queried by a developer are as follows. HiLog.warn(LABEL, "Failed to visit %(private) s,reason:%(public}d.",url, exrno); What kind of level does the log belong to?

Which of the following descriptions of the HarmonyOSclipboard function is correct?

Which of the following belongs to the application layer in the HarmonyOS system architecture?

When a developer is developing a game application, in order to display the download progress of game resources, it is necessary to use a circular progress bar, which of the following components can help the developer complete this function?

Which of the following is the callback behavior of the Page Ability lifecycle that can destroy the page?

Which of the following is NOT acomponent of the Harmony OS object-relational mapping database?

A developer needs to use the current data network for socket data transmission, and the development process involves the following steps:

1。Send data with sockets.

2。Bind the network with NetHandle.bindSocket().

3。Call NetManager.getDefaultNet() to get the default data network.

4。Call NetManager.getInstance(Context9) to get the instance object of network management.

When the developer combed through the development steps, the above steps were sorted according to the order in which the features were completed in the code. Which of the following is the correct order?

When a developer calls HarmonyOS Abi1ity Resources (HAR) in an application module, he or she needs to merge the config.json file of HAP and the config.json file of HAR into a single config.json file when compiling and building a HarmonyS Ability Package (HAP). During the merging process, under what circumstances will the values of tags conflict?

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.

In order to help users find data in the app through the global search app, a HarmonyOSdeveloper needs to index the data of the app and configure the global search searchable entities. Which of the following interfaces can the developer choose to index their application data?

When the page loses focus, which of the following callback methods will be called bythe system to make it enter the INACTIVE state?

When a developer designs a PA (Particle Ability) application, which of the following development steps can be omitted?

A developer needs to use the current scattered data network for socket data transmission, in this scenario, the development process involves the following steps: 1. Use socket to send data.2. Call NetHandle.bindSocket() to bind the network.3. Call NetManager.getDefaultNet() to get the default data network.4. Call NetManager.getInstance(ContextWhen the developer sorts out the development steps, the above steps are sorted according to the order in which the functions are completed in the code. Which of the following is the correct order?

In the process of coding, software development engineers need to detect whether the Butfer data is read and whether an exception occurs, which of the following methods can be called?

A developer tries to update the text of Text directly in a non-UI thread, but the update fails, how to solve the problem of updating the UI of the non-UI thread in HarmomyOS??

Browse articles in the reading app on your phone, migrate to the tablet to continue viewing, and exit the reading app on your phone. Which HarmonyOS streaming solution is used in this scenario?

Now a Text component is used as the title of a page, and the Text needs to be set to be invisible, but it still occupies the current layout space, which of the following is correct?

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?

In the JavaScript UI framework, which layer is used to provide animation parsing, DOM (Document Object Model) tree construction, layout calculation, rendering command construction and drawing, event management, etc.?

After a developer completesthe development of a Harmony OS application, it needs to be published to AppGallery

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

A PageA contains Ability SliceA1 and AbilitySliceA2, which is displayed as AbilitySliceA1 by default. What are the following steps if you want to navigate directly to PageA's AbilitySliceA2 in PageB on the current device?

The JS UI framework of HarmonyOSis a cross-device high-performance UI development framework that supports declarative programming and cross-device polymorphic UI. Which layer of the JS UI framework mainly completes front-end page parsing, and provides capabilities such as MVVM (Model-View-ViewModel) development mode, page routing mechanism, and custom components.

In a live broadcast scenario, where the anchor uses an action camera as the live broadcast camera, what are the distributed capabilities of HarmonyOS used in this scenario?

In order to ensure that the application has better responsiveness, the developer has designed different priorities for tasks A, B, and C. Task A maintains the default priority, Task B has HICH, and Task C has LOW. Which of the following descriptions of tasks A.B, and C is correct?

What functions does HarmonyOS provide in app data management to enable developers to seamlessly connect app data between different devices?

When developing a HarmonyOS application, if you want to set the background color for a Text component in the page, the following is correct

Which of the following items is correct about the objects of HarmonyOS permission protection?

When creating an application, which field in the config.json file must be the same as the application package name?

A HarmonyOSengineer needs to apply for a digital certificate to complete the release of the application, which of the following descriptions of digital certificates is wrong?

When a developer is developing a smart home application, the Switch component will be used to represent the switch of some devices, and ON should be displayed on the ON status component and OFF should be displayed on the closed state component, what are the following options that can meet the requirements?

When I need to create a profile when publishing an application, what type should I choose?

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

Which of the following combinations can realize the one-way state synchronization of child components from parent and child components?

Which of the following languages does HarmonyOS support for creating application projects?

Regarding the boot mode of UIAbility, the following statement is incorrect

HarmonyOSadopts a multi-core design, which supports the selection of suitable OS kernels for different resource-constrained devices

Which of the following prerequisites are required for developers to access the process of another device or call the methods of another device on one device to achieve multi-device collaboration?

If a developer wants to set up a dial pad, he will use round buttons and capsule buttons, what are the shape types that will be used in the background layer?

When a developer develops a news software, he will use the marquee of the Text component to realize the automatic scrolling of information, and before setting the marquee effect, he needs to set some preconditions for the Text component.

Which of the following modules does the HarmonyOS forwarding architecture consist of?

Which of the following items are correctly described about the HarmonyOS distributed database?

A HarmamyOS developer created three task distributors, serialtask dispatcher_aand dispatcher_b, and a proprietary task dispatcher dispatcher_s. The developer is experiencing a deadlock while using syncDispatch, which of the following causes could cause this phenomenon?

When the state data of @State modification is modified, the () method of the component will be triggered to update the UI interface

In which configuration file is the package dependency referencing the ohpm third-party library in

If the HarmonyOS user displays the navigation information on the mobile phone and the smart watchat the same time, if the smart watch is out of power, causing the navigation information to stop displaying, which callback will the navigation app on the mobile phone distribute to receive the termination notification?

In HarmonyOS, there are some applications that can call out universal cards, which can bring you the experience of using ().

What is the minimum API version supported by HarmonyOS Cloud Development?

The application package name cannot contain some reserved fields, which of the following fields meets the specification?

The developer is developing a ticket booking application, and uses the slide selector Picker to select the starting point of the ticket and writes the following code.

ohos:id="$+id:test_picker"

ohos:selected_text_color="#FFFFFF"

ohos:value="55"

ohos:max_value="10"

ohos:selector_item_num="10"

ohos:bottom_line_element="#FFFFFF"

ohos:selected_text_size="16fp"/>

Which field must the meta service package name end in?

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

Which of the following layers does the JavaSeript framework include?

Which of the following is the background agent reminder function module supported from API9.

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

A)

B)

C)

D)

When using HarmonyOS in distributed terminal scenarios, which of the following capabilities can be used to ensure that the device is safe and reliable?

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?

Which of the following options belong to the kernel layer in the HarmonyOS system architecture?

When a developer uses the distributed task scheduling capability of HarmonyOS, which of the following features can be selected by the developer?

Which of the following component hierarchies is wrong?

Where can I get the HarmonyOS app after the release?

What are the following task distribution methods for developers?

Which of the following descriptions is wrong when it comes to the simultaneous development of JS (JavaScript) and Java languages in HarmonyOS application development?

The user clicks on the song from the music list page to jump to the playback interface of the song, and clicks back to return to the music list page. Which of the following do developers need to do to implement this feature?

When creating a test user for a meta-service, you need to select the storage location of the user list

When a developer uses the Text component for development, because the length ofthe input string is too long, which of the following codes can be used to display the entire content?

After developing a HarmonyOS application, the developerneeds to package the application into an app for publishing it to AppGallery. You can use DevEco Studio to generate a key, in what format is the key stored in the keystore file?

Which of the following subsystems in HarmonyOS is part of the basic software servicesubsystem set?

Which of the following development languages can a developer use when developing a HarmonyOS smart screen application?

ArkTS Stage model supports API Version 9, is it correct about its project directory structure?

Aoh-package.json5 is used to store application-level configuration information, including signatures, product configurations, etc

Bbuild-profile.json5 is used to configure the entry and package name of the third-party package declaration file

Cmodule.json5 contains the configuration information of HAP, the configuration information applied to a specific device, and the global configuration information of the application

Dapp.json5 is used to write application-level compilation and build task scripts

258 DevEco Studio provides an emulator for developers to run and debug HarmonyOS applications/services.

A localemulator is created and runs on the local machine and requires login authorization

BThe local emulator supports functions such as volume adjustment, battery level adjustment, screen rotation, etc

CYou don't need to sign your application/service when you install it on your local emulator

DDevEco Studio will start the compilation build of the application/service, and the application/service will run on the local simulator after completion

259. After installing Lottie through OHPM, in which file will the relevant configuration information be generated?

When developing a HarmonyOSapplication, which of the following is NOT a permission that should be followed?

For example, if you want to implement an advertising pop-up window now, including information such as pictures and text, you can use the following pop-up window