Correct Answer : Native Development Kit
Explanation : NDK stands for Native Development Kit. By using NDK, you can develop a part of an app using a native language such as C/C++ to boost performance.
Correct Answer : Fragments
Explanation : In android mini-activities are also known as Fragments
Correct Answer : startActivityForResult()
Explanation : startActivityForResult() should use when need to pass data back from an activity.
Correct Answer : onCreate() callback
Explanation : Android system initiates its program with in an Activity starting with a call on onCreate() callback method..