1. What is
the correct way to fix if checking the status of the GPS_PROVIDER throws
SecurityException?
Answers:
• request
permission for ACCESS_COARSE_LOCATION
• request permission for ACCESS_FINE_LOCATION
• request
permission for INSTALL_LOCATION_PROVIDER
• None of
the above
2. Consider
the code snippet below:
MediaPlayer
mp = new MediaPlayer();
mp.setDataSource(PATH_TO_FILE);
<Some
code here>
mp.start();
Which of the
following should be placed at <Some code here>?
Answers:
• mp.prepare();
• mp.prepareAsync();
•
mp.loadMedia();
•
mp.loadSource();
•
mp.loadSource(); mp.prepare();
• No code is
required at <Some code here> to start playback.
3. Which of
the following would you have to include in your project to use the APIs and
classes required to access the camera on the mobile device?
Answers:
• import
android.drivers;
• import android.hardware.camera;
• import
android.camera;
• import
android.util;
• import
android.hardware;
4. Which of the following can be accomplished
by using the TelephoneNumberUtil class?
Answers:
• Save a
phone number to the contacts in the phone device.
• Retrieve a
phone number from the contacts in the phone device.
• Delete a
phone number from the contacts in the phone device.
• Format an international telephone number.
• Setting
and retrieving the call forwarding phone number on the phone device.
5. Which of
the following are UI elements that you can use in a window in an Android
application?
Answers:
• TextBox
• TextView
• TextField
•
TextElement
• EditText
• RichText
6. Which of
the following is not Content Provider?
Answers:
• Contacts
• Contacts
• Shared Preferences
• MediaStore
• Bookmarks
• Settings
7. What does
the following code do?
SensorManager
mgr = (SensorManager) getSystemService(SENSOR_SERVICE);
List<Sensor>
sensors = mgr.getSensorList(Sensor.TYPE_ALL);
for (Sensor
sensor : sensors) {
System.out.println(«»+sensor.getName());
}
Answers:
• prints names of all available sensors in device
• prints
names of all available sensor types in device
• prints
names of all sensors which are not available
• none of
above
8. Which of
the following is correct to use for data transfer regularly and efficiently,
but not instantaneously?
Answers:
• AsyncTask
•
IntentService
• Sync adapters
• All of
these
9. What is
the ListActivity class used for?
Answers:
• Create a view to display a list of items from a data
source.
• List all
the activities currently running on the Android device.
• List all
the activites that are installed on the Android device.
• List the
activities whose IntentFilters match with a particular Intent type.
10. Which of
the following would you have to include in your project to use the
SimpleAdapter class?
Answers:
• import android.content;
• import android.widget;
• import
android.database;
• import
android.database.sqlite;
• import
android.util;
11. Which of
the following is the best way to request user permission if an Android
application receives location updates from both NETWORK_PROVIDER and
GPS_PROVIDER?
Answers:
• Adding
this line to the Android manifest file: <uses-permission android:name=»android.permission.ACCESS_FINE_LOCATION»
/>
• Adding these two lines to the Android manifest file:
<uses-permission android:name=»android.permission.ACCESS_FINE_LOCATION»
/> <uses-permission
android:name=»android.permission.ACCESS_COARSE_LOCATION» />
• Adding
this line to the Android manifest file: <uses-permission
android:name=»android.permission.ACCESS_FINE_LOCATION» />
• Adding
this line to the Android manifest file: <uses-permission
android:name=»android.permission.CONTROL_LOCATION_UPDATES» />
12. Which of
the following can you use to display an HTML web page in an Android
application?
Answers:
• WebBrowser
•
BrowserView
• WebView
• Browser
• HtmlView
13. Which of
the following statements are correct with regards to signing applications?
a) All
applications must be signed.
b) No
certificate authority is needed.
c) When
releasing application special debug key that is created by the Android SDK
build tools can be used.
Answers:
• a) and b)
are true
• a) and c)
are true
• b) and c)
are true
• all statements are true
14. Which of
the following is the immediate base class for Activity and Service classes?
Answers:
•
Application
•
ApplicationContext
• Context
• Component
• Object
15. Which of
the following statement is correct regarding StrictMode?
Answers:
• StrictMode
detects improper layouts
• StrictMode detects operation which blocks UI
• StrictMode
detects the speed of the connection
• All of the
above
16. Which of
the following is/are appropriate for saving the state of an Android
application?
Answers:
•
Activity.onFreeze()
• Activity.onPause()
•
Activity.onStop()
•
Activity.onDestroy()
