Android Android Certification OA0-002 Questions & Answers

• Question 111:

  Which of these is the incorrect explanation of the Toast class?

  A. Toast is a simple class for display, and cannot be set with a custom XML-defined layout

  B. The display duration time of Toast can be chosen from 2 types, LENGTHJjDNG and LENGTH_SHORT.

  C. Toast is a class included in the android widget package.

  D. Since Toast automatically closes after display, a dismiss () method is not provided.

  Correct Answer: A

• Question 112:

  Which ContentProvider does Android not provide as a standard?

  A. A telephone log

  B. A database

  C. A bookmark

  D. A contact list

  Correct Answer: B

• Question 113:

  Which of these is the incorrect explanation of SQLite?

  A. There are 5 types of data type stored in column; Null, Integer, Real, Text, and Blob.

  B. There are restrictions on some functions of SQLite loaded on Android.

  C. It has transaction administration function and it is designed so that the storage is locked after commencing transaction.

  D. SQLite is a database that saves data in a single file.

  Correct Answer: B

• Question 114:

  Which of these is not recommended in the Android Developer's Guide as a method of creating an individual View?

  A. Create by extending the android.view .View class.

  B. Create by extending already existing View classes such as Button or TextView.

  C. Create by copying the source of an already existing View class such as Button or TextView.

  D. Create by combining multiple Views.

  Correct Answer: C

• Question 115:

  Which of these is the incorrect explanation regarding the private key when an application is published?

  A. RSA cannot be used as the encryption algorithm for key creation

  B. Can be created by using keytool

  C. The debug key created by the SDK tool cannot be used

  D. Can store several keys in 1 key store file

  Correct Answer: A

• Question 116:

  Which of these is the incorrect method setup when playing a video using a MediaPlayer?

  A. setDataSource sets the path for the data you want to play.

  B. setDisplay sets the SurfaceView object you want to associate.

  C. setAudioStreamType sets the type, chosen from those defined in AudioManager.

  D. setLooping sets the player repeat to ON/OFF.

  Correct Answer: B

• Question 117:

  When executing android.content.Context.openFileOutput("sample.txt", 0), which path is the file stored in?

  A. /data/app//files

  B. /data/data//files

  C. /system/app//files

  D. /system/data//files

  Correct Answer: B

• Question 118:

  Which is written in the red frame of the following figure, a manifest file, to show the version number?

  

  A. android:version-'4"

  B. android:versionCode="4"

  C. android:versionName="4"

  D. android:minSdkVersion-'4"

  Correct Answer: C

• Question 119:

  Which of these is the correct explanation of the Ul/Application Exerciser Monkey (Monkey tool)?

  A. It can execute tests covering all events.

  B. It can execute stress tests and sometimes discover new bugs.

  C. Even if an error is discovered, it cannot repeatedly reproduce the same operating state

  D. Since it reduces the interval between events as much as possible, it operates in a heavily- loaded state.

  Correct Answer: B

• Question 120:

  Which of the following dialogs is displayed at the time of executing the given code? (Assume no problems in the rest of the application.)

  

  

  A. Option a

  B. Option b

  C. Option c

  D. Option d

  Correct Answer: C