Vendor: Android
Exam Code: OA0-002
Exam Name: Android Application Engineer Certifications Basic
Certification: Android Certifications
Total Questions: 139 Q&A
Updated on: Jun 14, 2026
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Which is the incorrect explanation of an Activity?
A. If another Activity is instantiated when the Activity is executed, onPause() will be executed.
B. When the Activity is displayed in the foreground, onResume() will be executed.
C. When the Activity is displayed again, onRestart() will be executed instead of onStart().
D. When the Activity returns from an onPause(), it sometimes can execute from onCreate().
Which is the processing that cannot be executed by using the emulator during development?
A. Displaying information of the heap and threads.
B. Emulation of outgoing calls
C. Ending a process
D. Receiving E-mail
Which of these is the correct explanation of the Android Debug Bridge (adb)?
A. The adb client will not operate normally at startup if the adb server is not running.
B. The adb server assigns even-numbered TCP ports to connect to the adb daemon.
C. The adb server binds to TCP port 5037 to receive adb client communication.
D. The adb server runs on emulators and on physical handsets.
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