Android Android Certification OA0-002 Questions & Answers

• Question 21:

  Which of these is the incorrect explanation of the Android SDK's Hierarchy Viewer?

  A. It presents two windows, Layout View and Pixel Perfect View.

  B. Layout View is composed of 3 views, tree view, property view, and wireframe view.

  C. It can detect performance problems of layout files.

  D. It can call the invalidate() method of Android views.

  Correct Answer: B

• Question 22:

  Which is the correct response shown when the following source code is executed and Button is pressed? (Assume the source code environment and configuration are correct.)

  

  A. "Touch 1" will be displayed on the screen.

  B. Touch2" will be displayed on the screen.

  C. The button will not be displayed on the screen.

  D. Nothing will happen upon button press.

  Correct Answer: D

• Question 23:

  Which of these is the correct explanation of type and order of event issued after long-pressing the Button widget and letting go? (Assume no event consumption by an event listener)

  A. The following event will be issued only once. OnLongClick event

  B. 2 events will be issued in the following order: OnTouch event (MotionEvent.ACTION_SELECT) OnLongClick event

  C. 3 events will be issued in the following order: OnTouch event (MotionEvent.ACTION_DOWN) OnLongClick event OnTouch event (MotionEventACTIONJJP)

  D. 4 events will be issued in the following order: OnTouch event (MotionEventACTIONJDOWN) OnLongClick event OnTouch event (MotionEventACTIONJJP) OnClick event

  Correct Answer: D

• Question 24:

  Which of these is the correct explanation for an implicit Intent?

  A. Directly designate a destination Service and send.

  B. Directly designate a destination Activity and send.

  C. Send without directly designating a destination Activity.

  D. It will not actually be sent.

  Correct Answer: C

• Question 25:

  We have added a button to the layout of an Android application running in a Japanese environment, and specified @string/exe as text property. Which of these will be displayed on the button when adding the following code to the resource?

  

  A. There will be a compile error.

  B. "exe" will be displayed.

  C. "Execute" will be displayed.

  D. "@string/exe" will be displayed.

  Correct Answer: B

• Question 26:

  Which of these is the correct explanation of the Android NDK?

  A. You can create a shared library using native code.

  B. Since it can be executed without a Datvik VM, high speed performance can be achieved.

  C. You can develop Android applications with just native code.

  D. Usage of NDK is recommended, though the source code may become more complex, because debugging and other operations are easier.

  Correct Answer: A

• Question 27:

  Which of these is the data type not supported by SOLite database which can be used by Android?

  A. INTEGER

  B. REAL

  C. BLOB

  D. VARCHAR

  Correct Answer: D

• Question 28:

  Which of these is the incorrect explanation of a status bar Notification?

  A. The Notification can display an icon in the Status Bar along with flashing a light.

  B. The Notification can display an icon in the Status Bar along with a vibration.

  C. The Notification can display an icon in the Status Bar along with a melody.

  D. The Notification can display an icon in the Status Bar along with a video.

  Correct Answer: D

• Question 29:

  Which is the license adopted by Android?

  A. GNU General Public License

  B. GNU Lesser General Public License

  C. Berkeley Software Distribution License

  D. Apache License 2.0

  Correct Answer: D

• Question 30:

  Which of these is the correct explanation of zipalign?

  A. It is a tool which converts class files into dex files.

  B. It is a tool that optimizes apk files.

  C. It is a tool that displays the layout file hierarchy.

  D. It is a tool that creates and archives apk files.

  Correct Answer: B