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platforms and products Online Quiz - 30

Description: platforms and products Online Quiz - 30
Number of Questions: 20
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Tags: platforms and products
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An activity has essentially ___ states.

  1. 3

  2. 4

  3. 2

  4. 5

  5. None of above


Correct Option: A

A fundamental feature of Android is that an application process's lifetime is directly controlled by the application itself.

  1. True

  2. False


Correct Option: B

Android Application typically consist of several screens where each screen is implemented by more than one activity. Choose the right answer.

  1. True

  2. False


Correct Option: B

An android application includes the following components -

  1. Activity, Service, Process and Content Provider

  2. Activity, Intent, Process and Service

  3. Activity, Service, Broadcast Receiver and Content provider

  4. Service, Process, Broadcast Receiver and Content Provider

  5. None of above


Correct Option: C

A typical Android application has ________ components.

  1. 3

  2. 5

  3. 4

  4. 6

  5. None of above


Correct Option: C

All Android applications will remain running and in memory until the system needs its resources for other applications.

  1. True

  2. False


Correct Option: B

An Android Application can be “Alive” even when process has been killed

  1. True

  2. False


Correct Option: B

Suppose there are two applications having same priority, but the process that has _______ priority will be killed first.

  1. Highest

  2. Lowest

  3. Medium

  4. None of above


Correct Option: B

________ method is passed a Bundle object containing the activity's previous state, if that state was captured.

  1. onCreate()

  2. onResume()

  3. onStart()

  4. None of above


Correct Option: A

Between ______ & ________methods, you can maintain resources that are needed to show the activity to the user.

  1. onResume(), onStop()

  2. onStart(), onStop()

  3. onStart(), onDestroy()

  4. onResume(), onDestroy()

  5. None of above


Correct Option: B

__________ method is called when activity is first created

  1. onStart()

  2. onResume()

  3. onCreate()

  4. None of above


Correct Option: C

The onStart() and onStop() methods can be called multiple times, as the activity alternates between being visible and hidden to the user.

  1. True

  2. False


Correct Option: B

The following method is called when the system is about to start resuming another activity

  1. onStop()

  2. onPause()

  3. onRestart()

  4. onDestroy()

  5. None of above


Correct Option: B

The activity in this state is killable by the system.

  1. onDestroy()

  2. onStop()

  3. onPause()

  4. Above a & c

  5. Above a & b

  6. Above a & b & c


Correct Option: F

____ method is called just before the activity starts interacting with the user. At this point the activity is at the top of the activity stack, with user input going to it.

  1. onPause()

  2. onResume()

  3. onRestart()

  4. onStart()

  5. None of above


Correct Option: B

The foreground lifetime of an activity happens between a call to onResume() until a corresponding call to onStop().

  1. True

  2. False


Correct Option: B

The visible lifetime of an activity happens between a call to onStart() until a corresponding call to onPause(). Choose the right answer.

  1. True

  2. False


Correct Option: B

If an activity is paused or stopped, the system can drop it from memory by calling -

  1. Calling drop() method

  2. Calling finish() method

  3. Calling release() method

  4. kill the process_id

  5. Above b or d

  6. None of above


Correct Option: E

In a typical activity lifecycle, if an activity "AA1" is completely obscured by another activity "AA2", the current state of "AA1" activity is -

  1. Paused State

  2. Active State

  3. Stopped State

  4. Hidden State

  5. None of above


Correct Option: C

Activities are basic objects, describing things a user can see or do and they can subscribe for intents.

  1. True

  2. False


Correct Option: B
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