Which of the following does not belong to the system service layer in the HarmonyOS system architecture?
After a developer completesthe development of a Harmony OS application, it needs to be published to AppGallery
In the HarmonyOS system architecture, which of the following can shield the differences between multiple cores and provide basic kernel capabilities for the upper layer?
After the creation of a custom component of the Web development paradigm, which of the following callbacks will be triggered when it is added to the Page component tree?
When a developer designs a navigation application and needs the system to provide accurate positioning, which subsystem will be used?
A developer has developed with the Text component, and the effect is as follows, which piece of code can be used to achieve the effect?
When a HarmonyOS app developer uses the form container, which of the following elements can be submitted and reset?
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?
If a developer needs to use asyncDispatchBarrier to set up a barrier asynchronously, in this scenario, in order to separate different task groups, the developer can choose which of the following task dispensers?
A HarmonyOSuser 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?
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?
Both the provider and user of DataAbility use a URI (UnifomResourceldentifier) to identify a specific data, and the format of the URI is as follows:
Scheme://[authority]/[path][? query][#fragment]
Which is the correct URI description in the cross-device scenario and the local device scenario?
Which of the following is NOT a capability provided by Distributed Device Virtualization in HarmonyOS?
When a developer uses HarmonyOS Device Manager, he wrote the following code, which code description is correct?
Vardevicelnto=dmInstance.getLocaIDevicelnfoSync () :
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?
In a HarmonyOS application, which of thefollowing and the ComponentContainer object are actually composed of the interface elements that the user sees?
Which of the services provided by the HarmonyOS Connect solution is Device Parter?
Which of the following belongs to the lifecycle of starting a Service 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?
The user migrates the video on the mobile phone to the smart screen for playback, and after the mobile phone saves the data, the smart screen calls back which of the following methods does the user recover the data?
If a developer wants to develop a Data Ability for the storage and management of application data, which of the following can help the developer realize the function ofinserting multiple pieces of data into the database at one time?
A HarmonyOSuser downloads and installs a new app that has declared some non-sensitive permissions in the config.json file, and the app may involve some sensitive permissions during operation. Which of the following is correct in this scenario?
Inwhat form will the application package of Harmony OS be released and put on the shelves?
A developer obtains a log content: static final HiLogLabel LABEL = new HiLogLabe1 (HiLog.LOG_APP,0x00201,"MY_TAG");
Which of the following information can't be obtained?
The key generated by the developer contains the public key and the private key used in asymmetric encryption, and in what format is the key stored in the key file?
A developer usestheAI 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?
A user migrates video from a mobile phone to a smart screen for playback and uses the distributed task scheduling capability of HarmonyOS. Which of the following belongs to the process of opening the smart screen playback software when the mobile phone is migrated in this scenario?
When a developer is developing a HarmonyOSapplication, if he needs to annotate information for a certain resource file of different types of elements in the Element directory to facilitate the understanding and use of the resource, which of the following methods can be added (XXX represents the comment text)?
Which of the following options is allthe components ofthe Harmony OS package?
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.
Which of the following interfaces can repeatedly call a function with a fixed time delay between each call?
An engineer uses a local simulator for application debugging, which of the following describes the error of the local simulator?
If a developer wants to develop an application on a smart screen, which of the following subsystems will he use?
When the system destroys a page, which of the following callback methods will be triggered?
In HarmonyOS application development, where can commonly used backgrounds, such as common text backgrounds and button backgrounds, be placed?
If a UI is no longer visible to the user, but you don't want to destroy it, which method will the system call to release the corresponding resources?
How do I define the permissionscorrectly when a developer needs to customize the permissions for the Harmony OS third-party application?
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?
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?
When the user migrates the video on the mobile phone to the smart screen for playback, there will be a pop-up prompt for the user to confirm whether to start the migration. During the migration process, which of the following methods is first called?
When developing a HarmonyOSapplication, what methods do I need to call when migrating the FA (Feature Ability) on device A to device B?
When a developer subscribes to a public event, he processes the public event in the onReceiveEvent() callback function and writes the following code.
EventRunner runner = EventRunner.create();
MyEventHandler myHandler = new
MyEventHandler(rurner);
@Override
public void onReceiveEvent(CommonEventData
commonEventData){
final AsyncCommonEventResult
result=goAsyncCommonEvent Runnable task = new
Runnable(){
@override
pub1ic void run {
......
The action to be performed, defined by the developer
result.finishCommonEvent();
}
};
myHandler.postTask(task);
}
A developer uses the threading function of HarmonyoS and writes the following code, which is the correct order of the execution result of the code?
TaskDispatcher globalTaskDispatcher =
getGlobalTaskDispatcher(TaskPriority.DEFAULT);
globalTaskDispatcher.syncDispatch(new
Runnable(){
@Override
public void run(){
HiLog.info (LABEL_LOG,"sync task1 run");//1
HiLog.info (LABEL_LOG, "after sync task1");//2
globalTaskDispatcher.syncDispatch(new
Runnable(){
@0verride
pub1ic void run(){
HiLog.info(LABEL_LOG,"sync task2 run"); 3
}
});
HiLog.info (LABEL_LOG, "after sync task2");//4
When the developer jumps to a new page through the button button, the following code is created. If you don't add "" Button button = (Button) findComponentByld(ResourceTable.ld_button) ;" What happens to this line of code?
Public void onStart(Intent intent){
super.onStart(intent);
super.setUlContent
(ResourceTable.Layout_ability_main);
Button button =
(Button)findComponentByld(ResourceTable.ld_button);
button.setClickedListener(listener -> present(new
SecondAbilitySlice(),new Intent()));
}
When a developer clicks the exit button of an application to release PageAbility resources, which callback method in the ability lifecycle of the Pag package will betriggered?
In order to test the distributed file service functions of application A and application B, the developer installs application A and application B on both device 1 and device 2. During the test, application A on device 1 creates a distributed file X, and application B on device 2 creates a distributed file Y. Which of the following descriptions of this scenario is wrong?
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.
Service is running in the background, and users want the application to keep running all the time when playing music, and the foreground Service cannot be used at this time.
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.
The callback mechanism provided by the Ability class can allow the Page instance to switch with the user's operation background
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.
The ListContainer grid layout can be realized through the setLayoutManager() method
HarmonyOS application packages are released in the form of application packs, which are composed of one or more HAPs (HarmonyOS Ability Packages) and pack.info describing each HAP attribute.
In the HarmonyOS system architecture, the distributed data management module belongs to the framework layer.
The global search portal provided on HarmonyOS has a desktop drop-down search box or a negative screen search box.
The Ability (referred to as "Service") of the Service template is only used for background running tasks, and the priority of background Services is relatively low, and when the resources are insufficient, the system may recycle the running background Service
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 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
The MainAbility of a HarmonyOS application has multiple AbilitySlices, and when the AbilitySlice health state is switched, the MainAbility state is INACTIVE.
There is a button on the main interface of a HarmonyOS application, and the display text on the button is "Start Download", after clicking this button, a sub-thread is created to perform time-consuming download operations. After the download is over, you can change the button in the subthread to "Download End".
HarmonyOS developers can use the "chos. Permission.CET_NET7ORK_INFO request permission to Modify Network Connection Status.
An application can have one or two HAP (HarmonyOS Abi1itPackage) packages of entry type in the same device type.
After the user enters a piece of text, with the help of the part-of-speech annotation interface, the application can perform automatic word segmentation, and label each word in the word segmentation result with a correct part of speech. However, the part-of-speech tagging feature provided by HarmonyOS only provides a fixed word segmentation granularity, and developers cannot customize the word segmentation granularity as needed when developing applications.
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.
An engineer uses a simulator to debug a HarmonyOS application, which can support two types of HAP: signed and unsigned HAP (Harmomy0S Ability Package).
The application package names of the application projects created by JavaSaript and the applications compiled by the Java projects are HAR (HarmonyOS Ability Resources) and HAP (HarmonyOS Ability Package), respectively.
The atomic service consists of one or more HAP packets, andone HAP packet corresponds to one FA or one PA. Each FA or PA can be operated independently to perform 1 specific function.
A Page Ability (hereinafter referred to as a "Page") may consist of one or more AbilitySlice, which refers to the sum of a single page of an application and its controllogic.
Motion sensors may be a single physical sensor, or they may be composed of multiple physical sensors.
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 lifecycle of AbilitySlice, the onStart() callback method does not need to be rewritten.
When a developer has multiple versions of the object-relational mapping database, and the developer calls the BookStoreUpgrade class to upgrade the database version, the version number of the BookStoreUpgrade class is configured as "2", and the actual version number of the current BookStore.db is "1".
In DevEco Studio, engineers can log in to the emulator after passing the real-name authentication of their HUAWEI ID.
An engineer uses the WLAN P2P function, and the engineer can establish a P2P group.
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.
In HarmonyOS's "1+8+N" strategy, mobile phones belong to one of the "8" devices.
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.
A manufacturer used HarmonyoS to produce a dash cam (memory is 64MB), which is small in size and light in weight, and is a lightweight system device.
When MainAbility and MainAbiitySlice are bound together, the lifecycles of the two are synchronized, including the callback method for transitioning between states.
In HarmonyOS's "1+8+N" strategy, smart microwave oven devices belong to "N" devices.
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.
A user uses the HarmonyOS distributed task scheduling capability to migrate mobile phone videos to the smart screen for playback. In this scenario, the process of finding whether the smart screen has the same playback software is a global query.
When using EventHandler to implement inter-thread communication, if EventRunner takes out the Runnable task, it will trigger the callback method of EventHandler and the processing method of EventHandler.
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
A Page Instance can contain a group of related pages, and each page is represented by an AbilitySlice instance.
When a developer navigates within the same page, the AbilitySlice is new, even if present(newTargetSlice(), new Intent()) is repeatedly called, it will not cause any AbilitySlice to be out of the stack.
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.
In HarmonyOS, both relational databases and object-relational mapping databases can use SQL statements to manipulate databases.
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.
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);
Developers can create user interfaces directly on AbilitySlice or on Ability.
A HarmonyOS application may not contain a hap package of the feature type.
The way to find the object of the control declared in the Layout file by ID in HarmonyOS is findComponentByld().
Frame rate is the frequency (rate) at which a bitmap image appears continuously on a display in frames, measured in hertz (Hz).
The callback mechanism provided by the Ability class can enable the Page instance to switch in the background following the user's operation.
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.
A developer wants to use macOS for HarmonyOS application development, but the development tool DevEco Studio does not support macOS installation.
HarmonyOS provides access to external storage devices, such as USB flash drives, SD cards, etc.
What are the following options that belong to the JavaScript UI framework?
The distributed database is based on the KV data model and provides KV access interfaces.
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.
After the card is added to the card management service, the card user caches the view information of the card, so that the cached data can be directly returned the next time the card is obtained, reducing the delay.
The user and provider of the service card do not require permanent operation, and when it is necessary to add, remove, or request to update the card, the card management service will pull up the card provider to obtain the card information.
If a developer uses the startAbility() method provided in Ability to start a Service, what are the correct descriptions of starting the Service?
A software development engineer will debug a piece of code, which of the following methods can be used?
What capabilities does the public event service provide for the application?
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?
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?
When using Bluetooth Low Energy in HarmonyOS, the peripheral device, as a client, can receive GATT connection requests from the central device, but cannotAnswer:requests for reading and writing eigenvalue content from the central device.
A developer tries to use the word segmentation feature of HarmonyOS to tokenize a dry word article, and in this scenario, the word segmentation text exceeds 500 characters, so the parameter error will be returned.
On the basis of the supported input events, the multi-mode input defines some input actions commonly used by users as a set of standardized events, and maps the input events of different input devices to the standardized events.
Which of the following information is contained in moduleJSON5 under entry?
What features can developers use to implement collaborative identity authentication through HarmonyOS?
HarmonyOS Distributed File Service can automatically share files under different accounts.
The HarmonyOS Media Management module provides capabilities for audio playback, audio recording, audio and video synthesis, and video decoding.
Which of the following processes does the HarmonyOS data lifecycle consist of?
In HarmonyOS, when switching between pages, if you use Ability Switching, it is equivalent to constantly switching new pages in the same window, and if you use AbilitySlice to switch, a new window will pop up.
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?
HarmonyOS is classified according to the size of the device's memory, which of the following categories can be divided into?
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">
Which of the following subsystem sets are included in the basic capability subsystem of the HarmonyOS system architecture?
Which modules in the following figure can be installed and operated independently?
. If a developer wants to use the distributed device virtualization capabilities of HarmonyOS, which of the following hardware can be selected by the developer?
If a reading app uses the language recognition capability provided by HarmonyOS, the app can automatically read a novel.
To publish sticky public events in armonyOS, the publisher must first apply for the permissions required to publish sticky public events in config.json.
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.
The KV data model is a SQL-type database whose data is organized, indexed, and stored in the form of key-value pairs.
When developers use HarmonyOS distributed terminals, which of the following items can ensure that the system is safe and reliable?
In HarmomOS, when an application is launched, the system creates an execution thread named "Main Thread" for the application. The main thread, also known as the UI thread, displays and updates the UI interface on the main thread.
HarmonyOS maintains a stack of AbilitySlice instances for each Page, and each AbilitySlice instance that enters the foreground will be added to the stack.
Which of the following functions does the HarmonyOS network management module provide?
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 information is included in the module.json5 configuration file?
A developer is using CommonEventData to encapsulate information about ordered public events for data processing when publishing, distributing, and receiving. What do I need to pay attention to when developing?
An engineer wrote the following code, which items are correct in the description of the following code?
@Entity(tableName="user",ignoredColumns={"ignoredColumn1","ignoredColumn2"},indices ={@Index(value ={"firstName","lastName"),name="name_index",unique =true)})
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");
HarmonyOS supports on-demand elastic deployment of a variety of terminal devices.
If you need to use a composite animation, you can combine multiple animated objects and add them to the AnimatorGroup. The AnimatorGroup provides two methods: runSerially() and runParallel(). Indicates that the animation starts at the same time and that the animation starts sequentially.
Which of the following service management mechanisms does HarmonyOS's distributed task scheduling consist of?
When developing an application, a developer uses the WLAN P2P function to realize point-to-point data transmission between devices. Function 2, Create and remove groups, Function 3, Initiate a connection to the peer device.Which of the above functions is correct in the following descriptions?
A developer wants to use JS (JavaScript) to develop an application on the smart screen,Which of the following development languages does the developer need to master?
Which of the following features does HarmonyOS smart home devices include?
There is a config.json configuration file in the root directory of each HAP (HarmonyOS Ability Package) of an application.
A HarmonyOS application developer displays three flowers in the form of a list, and the interaction logic code of the page is as follows.
Which of the following items are correctly described about the HarmonyOS distributed database?
Which of the following functions can be achieved through the sidebar button of the remote simulator?
In HramonyOS, which of the following can developers use the static animation feature to achieve?
Regarding the container components Row and Column, the following statement is wrong.Themain axis of A Column container is vertical, and the cross axis is horizontal;
What are the following advantages of the HarmonyOS forwarding architecture?
Which of the following NFC functions can developers use when developing apps based on HarmonyOS?
What is the minimum API version supported by HarmonyOS Cloud Development?
Which of the following languages does HarmonyOS support for creating application projects?
In DevEco Studio, what form can developers use to develop HarmonyOS cloud?
When a developer is developing an online education application, in order to improve the user experience, if the userAnswer:s the question correctly, a dialog box of "Congratulations on the correctAnswer:" will pop up at the top of the window.
The meta-service package consists of one or more HAP packages, and each HAP package shall not exceed ( ) to provide a second-to-open experience.
Which modules in the following figure can be installed and operated independently?
Which of the following descriptions is wrong when it comes to the simultaneous development of JS (JavaScript) and Java languages in HarmonyOS application development?
In order to complete the release of the application, an engineer needs to apply for a digital certificate, which of the following options is correct about the description of the digital certificate?
Which of the following permissions is required to load network images with the Image component?
The streaming capability of HarmonyOS breaks the boundaries of devices and enables multi-device linkage, enabling users to separable, merge, and stream, enabling distributed services such as cross-device email editing, multi-device collaborative fitness, and multi-screen games. Which of the following options is one of the advantages of the HarmonyOS forwarding architecture?
When creating an application, which field in the config.json file must be the same as the application package name?
When creating a test user for a meta-service, you need to select the storage location of the user list
A software development engineer uses the traditional Bluetooth native management method to manage Bluetooth, which of the following functions can the engineer achieve?
Which of the following modules does the HarmonyOS forwarding architecture consist of?
Which of the following classes is the base class for JavaScript FA (Feature Ability) to run on HarmonyOS?
If a developer develops a HarmonyOS application and remotely launches a Page on phone B, which of the following permissions does not require the user to request authorization by sending a pop-up window at runtime?
In the declarative development paradigm, which of the following rules about the constructor method initializes member variables is wrong?
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?
The library file is the third-party code that the application depends on, which of the following library files are correct?
Which of the following methods can be used to deal with navigation within the same page?
When adding user information, if the account uses a mobile phone number, which of the following input formats is correct?
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?
When developing an application, a developer uses the WLANP2P function to realize point-to-point data transmission between devices. The functionality of the application is as follows: Function 1: Discover the peer device. Function 2: Create and remove groups. Function 3: Initiate a connection to the peer device. Which of the above features is correct in the following descriptions?
Ability and InternalAbility are two different ways to call PA (ParticleAbility) by FA (FeatureAbility).
When a user uses the device camera to flip a blurry text file, he expects the camera app to provide a plug-in to improve the recognition of the text. Which of the following HarmonyOS service features is best suited to meet the needs of this user?
There are two Text components in the Row component, if the justifyContent alignment method is used, which of the following properties can be aligned to the left and right ends
HarmonyOS provides two mechanisms for calling JavaPA (ParticleAbility) by JSFA(FeatureAbility), namely Ability and InternalAbility.
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.
Which of the following combinations cannot realize two-way data synchronization between child components and parent and child components?
When a data engineer constructs a data table, which of the following can be used as data types?
Which of the following subsystems in the HarmonyOS subsystem belongs to the hardware service subsystem set?
DevEco studio provides remote simulator developers to run and debug HMOS applications, which of the following limitations will the remote simulator have?
Which of the following system resources does the Ark Development Framework provide for developers?
Which of the following is all the components of the HAP package in HarmonyOS?
In the collaborative office scenario, project the document on the mobile phone to the smart screen, and perform page turning and zoom operations on the document on the smart screen. What distributed capabilities are used in the preceding scenarios?
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?
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?