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Question 477 - H14-231_V1.0 discussion

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When testing the Bluetooth Low Energy feature of HarmonyOS, a developer needs to make the central device perform Bluetooth scanning. Which of the following descriptions of the developer's actions are correct?

A.
Get scan filter, if the filter is empty, it is not used to scan without filter
Answers
A.
Get scan filter, if the filter is empty, it is not used to scan without filter
B.
calls startScan() to start scanning the Bluetooth device
Answers
B.
calls startScan() to start scanning the Bluetooth device
C.
Before performing Bluetooth scanning, it is necessary to inherit the advertiseCallback class to implement startResultEvent Callback, which is used to receive scan results
Answers
C.
Before performing Bluetooth scanning, it is necessary to inherit the advertiseCallback class to implement startResultEvent Callback, which is used to receive scan results
D.
Call the BleCentralManager (BleCentralManagerCal1lback callback) API to obtain the device management object
Answers
D.
Call the BleCentralManager (BleCentralManagerCal1lback callback) API to obtain the device management object
Suggested answer: A, C, D
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asked 18/09/2024
Feras Al Babtain
27 questions
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