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Huawei HCIP-HarmonyOS Application Developer V1.0 Sample Questions:

1. In order to put a series of related download tasks into a task group, a developer uses the following code:
String dispatcherName =
"parallelTaskDispatcher";
TaskDispatcher dispatcher =
createParallelTaskDispatcher(dispatcherName,TaskPriority.DEFAULT);
Group group
=dispatcher.createDispatchGroup();
dispatcher.asyncGroupDispatch(group,new
Runnable(){
@Override
public void run(){
HiLog.info(LABEL_LOG,"download taskl is
running ");
}
});
dispatcher.groupDispatchlotify(group,new
Runnable(){
@0verride
public void run(){
HiLog.info(LABEL_L0G,"the close task2 is
running");
}
});
dispatcher.groupDispatchlotify(group,new
Runnable(){
@Override
public void run(){
HiLog.info(LABEL_L0G, "the close task is
running after all tasks in the group are
completed");
}
});
If the developer runs this code, which of the following results might occur?

A) download task2 is running download task1 is running the close task is running after all tasks in the group are completed
B) download task1 is running the close task is running after all tasks in the group are completed dowmload task2 is running
C) download task1 is running download task2 is running the close task is running after all tasks in the group are completed
D) the close task is running after all tasks in the group are completed download task1 is running download task2 is running

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

A) Before you start Bluetooth scanning, you need to register for a
broadcastBluetoothRemoteDevice.EVENT_DEVICE_DISOOVERED
B) You can use the getLocalName() interface to check whether Bluetooth is turned on
C) 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
D) can initiate a Bluetooth device scan through the startBtDiscovery() interface

3. 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?

A) If Device 1 and Device 2 are logged in to different HarmonyoS accounts, distributed file sharing cannot be implemented
B) ApplicationA and Application B need to apply for ohos.permission.DISTRIBUTED_DATASYNC permissions to use the full functionality of the distributed file service
C) If device 1 runs out of power and causes the device to go offline, distributed file X cannot be accessed
D) With distributed file services, application A on device 1 is able to read and write file Y on device 2

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

A) The synchronization logic is completely transparent
B) Depends on the cloud
C) The interface is simple, and the backup and encryption features are simple and configurable
D) shields different physical transmission channels

5. 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?

A) Add a route for AbilitySliceA2via addActionRoute() in PageA
B) Register the action corresponding to PageA in the configuration file
C) Set the action in the Intent of the PageB navigation
D) Set Deviceld to empty in the Intent of the PageB navigation

Solutions: