Question 1

Which of the following classes is used to find out the DRM plug-in available in a device?

Accepted Answer

A)  DrmManagerClient 
B)  DrmServer 
C)  DrmConstraints 
D)  DrmRights

Question 2

If credit card numbers and passwords are stored in device they should to be in

Accepted Answer

A)  Raw Form 
B)  Encrypted Form 
C)  Hash Form 
D)  Text file

Question 3

Digital rights management (DRM) is access control technology for which of the following

Accepted Answer

A)  SD card 
B)  Applications 
C)  Android Device 
D)  Operating System

Question 4

Which of the following is a safe place to store user data?

Accepted Answer

A)  Backend servers. 
B)  Mobile devices. 
C)  SD Cards. 
D)  Third party applications.

Question 5

Permissions can be added inside

Accepted Answer

A)  AndroidManifest.xml. 
B)  Layout.xml file 
C)  Res folder 
D)  Bin folder

Question 6

What does the following line of code do? FileOutputStream fOut = openFileOutput("MyFile.txt", MODE_WORLD_READABLE);

Accepted Answer

A) The file MyFile.txt will be created in the /data// files/ directory. B) The file MyFile.txt will be created in the /data/data// files/ directory. C) None are correct D) The file MyFile.txt will be created in the /data/data// directory.

Question 7

Application can send permissions programmatically.

Accepted Answer

A)  Depends on developer 
B)  Yes but not all times 
C)  No 
D)  Yes

Question 8

Which of the following is true when the system is running low on memory?

Accepted Answer

A)  Files in the cache memory of application are deleted. 
B)  Files that the application made on external memory are deleted. 
C)  No file gets deleted from the device. 
D)  Application data saved in SQLite database.

Question 9

Which of the following is true about "uiOptions" attribute of the <application>? (Choose two)

Accepted Answer

A)  Its default value is "none". 
B)  "splitActionBarWhenNarrow" is a valid value for this attribute. 
C)  "hideActionBarWhenNarrow" is a valid value for this attribute. 
D)  It disables any other UI options in the layout resource files.

Question 10

What is the validity of the data stored through shared preferences?

Accepted Answer

A)  Data is deleted when application is closed. 
B)  Data is deleted when application is paused by pressing home button. 
C)  Data gets deleted when application is uninstalled. 
D)  Both "Data is deleted when application is closed" and "Data is deleted when application is paused by pressing home button" are correct.

Question 11

Which of the following throws exception GooglePlayServicesAvailabilityException? (Choose two)

Accepted Answer

A)  GooglePlayServices.apk is old 
B)  GooglePlayServices.apk is unavailable. 
C)  Android OS is not updated to the latest version. 
D)  Android device cannot communicate with Google Play services.

Question 12

Which of the following permissions is most dangerous and can cause severe damage to Device?

Accepted Answer

A)  BRICK 
B)  REBOOT 
C)  SHUTDOWN 
D)  ACCESS_WIFI_STATE

Question 13

Which of the following can be used to share a component among applications written by same author?

Accepted Answer

A)  Custom permission 
B)  System Permission 
C)  Component permission 
D)  Special level kernel permissions

Question 14

Which of the following is a database tool included in Android SDK?

Accepted Answer

A)  sqlite3. 
B)  sqlite. 
C)  adb. 
D)  All are correct.

Question 15

Which of the following returns the most accurate location of user?

Accepted Answer

A)  NETWORK_PROVIDER 
B)  GPRS_PROVIDER 
C)  GPS_PROVIDER 
D)  USER_LOCATION_PROVIDER

Question 16

Which of the following is NOT true about manifest tag in AndroidManifest.xml? (Choose two)

Accepted Answer

A)  It declares the application specific attributes 
B)  This can be put inside the application tag. 
C)  It declares the component specific attributes. 
D)  This is the must have tag in AndroidManifest.xml.

Question 17

Which of the following is NOT correct about setting "largeHeap" attribute of <application> tag to true?

Accepted Answer

A)  It allows us to increase the heap memory by fixed amount given as its value. 
B)  Its value is given in Mbps. 
C)  Its value affects the overall performance of the application. 
D)  If shared user ID is being used to allow multiple applications to use a process, they all must use this option consistently or they will have unpredictable results.

Question 18

Which of the following permissions is required to request auth tokens from Account Manager?

Accepted Answer

A)  android.permission.GET_ACCOUNTS 
B)  android.permission.USE_CREDENTIALS 
C)  android.permission.GET_AUTH_TOKEN 
D)  All are correct

Question 19

What is the validity of the files created on external memory?

Accepted Answer

A)  Files are deleted when user presses "back" button to close the app 
B)  Files are deleted when user uninstalls the application from device 
C)  Files are deleted when user presses "Home" button of device 
D)  Files never get deleted from external memory

Question 20

How many level of protection are there in Permission?

Accepted Answer

A)  Seven. 
B)  User Defined. 
C)  Four. 
D)  Depends of the Android OS version.

Exam 2: Android Security Essentials