Android Android Certification OA0-002 Questions & Answers

• Question 31:

  Which of these is the incorrect explanation of signing an application?

  A. It is necessary to sign with the same certificate an for application update.

  B. It is necessary to configure the keystore file, including private key, for signing.

  C. Signing is required for installation of an application.

  D. It is required to use jarsigner for signing.

  Correct Answer: D

• Question 32:

  Which screen will be displayed as a result of executing the following code?

  

  A. Option a

  B. Option b

  C. Option c

  D. Option d

  Correct Answer: B

• Question 33:

  Which is the file system of the disk image created by mksdcard command?

  A. NTFS

  B. FAT32

  C. ext3

  D. AndroidFS

  Correct Answer: B

• Question 34:

  Which is the permission necessary for implementation of HTTP and Socket communication?

  A. INTERNET

  B. ACCESS_NETWORK_STATE

  C. CHANGE_NE7WORK_STATE

  D. BLUETOOTH

  Correct Answer: A

• Question 35:

  Which of these is the correct code to create a Bitmap object using the file res/drawable/image.png?

  A. Bitmap img = BitmapFactory.decodeFile(R.drawable.image),

  B. Bitmap img = BitmapFactory.decodeResource(R.drawable.image);

  C. Bitmap img = new Bitmap(R.drawable.image);

  D. Bitmap img = (Bitmap)GraphicsFactory.decodeResouces(R.drawable.image);

  Correct Answer: B

• Question 36:

  Which of these is the incorrect explanation of external storage using an SD card?

  A. SD cards support the FAT file system.

  B. Directories of an SD card can be acquired by Environment.getExternalStorageDirectory().

  C. Linux file system permissions do not exist on an SD card.

  D. Files on SD cards cannot be handled by Java.io.File.

  Correct Answer: D

• Question 37:

  Which of these is the correct structure for exposing data owned by an application to another application?

  A. ContentProducer

  B. Android Interface Definition Language

  C. ContentProvider

  D. ContentObservable

  Correct Answer: C

• Question 38:

  Which of these is the incorrect explanation of dx?

  A. It is a tool used from the command line and does not have a GUI.

  B. It converts class files into a Dalvik executable format (dex file).

  C. The file types used for conversion are only class, jar, and zlib.

  D. When using Eclipse, it is not necessary to call it explicitly.

  Correct Answer: C

• Question 39:

  Which of these is the incorrect explanation of SQLite?

  A. It supports views.

  B. It supports triggers.

  C. It supports transactions.

  D. It has support for server installation.

  Correct Answer: D

• Question 40:

  Which of these is the correct method to update an application published to the Android Market?

  A. It is necessary to sign with an updated certificate and upload.

  B. It is necessary to individually implement within application since it does not have update function

  C. Add versionCode attribute of manifest file and upload the latest created application.

  D. Add versionCode attribute of manifest file and upload manifest file.

  Correct Answer: C