Important Android MCQ Questions And Answers

Q 1  What is an interface in android?

A - Interface acts as a bridge between class and the outside world.

B - Interface is a class.

C - Interface is a layout file.

D - None of the above

Ans: A

Q 2  Fragment in Android can be found through

A - findByID

B - findFragmentByID

C - getContext.findFragmentByID

D - FragmentManager.findFragmentByID

Ans: D

Q 3  What is fragment in android?

A - JSON

B - Peace of Activity

C - Layout

D - None of the above

Ans: B

Q 4  What is fragment life cycle in android?

A - onReceive

B - onCreate

C - onAttach->onCreate −> onCreateView −> onActivityCreated −> onStart −> onResume

D - None of the above

Ans: C

Q 5  How many levels of securities are there in android?

A - App level security and kernel level security

B - Android level security

C - Java level security

D - None of the above

Ans: A

Q 6  How many orientations does android support?

A - 4

B - 10

C - 2

D - None of the above

Ans: A

Q 7  How many protection levels are available in the android permission tag?

A - There are no permission tags available in android

B - Normal, kernel, application

C - Normal, dangerous, signature, and signatureOrsystem

D - None of the above

Ans: C

Q 8  Is it mandatory to call onCreate and onStart in android?

A - No, we can write the program without writing onCreate and onStart

B - Yes, we should call onCreate and onStart to write the program

C - At least we need to call onCreate once

D - None of the above

Ans: A

Q 9  Is it possible activity without UI in android?

A - No, it's not possible

B - Yes,it's possible

C - We can't say

D - None of the above

Ans: B

Q 10  What is the purpose of super.onCreate in android?

A - To create an activity

B - To create a graphical window for subclass

C - It allows the developers to write the program

D - None of the above

Ans: B

Q 11  What is ANR responding time in android?

A - 10 sec

B - 5 sec

C - 1 min

D - None of the above

Ans: B

Q 12  What is sandbox in android?

A - Each application runs securely in sandbox without interrupting another process

B - Android Box

C - Android development tool kit

D - None of the above

Ans: B

Q 13  What are commands needed to create APK in android?

A - No need to write any commands

B - Create apk_android in command line

C - Javac,dxtool, aapt tool, jarsigner tool, and zipalign

D - None of the above

Ans: B

Q 14  What is transient data in android?

A - Permanent data

B - Secure data

C - Temporary data

D - Logical data

Ans: D

Q 25  Can a class be immutable in android?

A - No, it can't

B - Yes, Class can be immutable

C - Can't make the class as final class

D - None of the above

Ans: B

Q 16  Why don't we give MIN SDK as 1 in android?

A - Android deprecated version

B - There is no value for 1

C - Android doesn't allow min version 1

D - None of the above

Ans: A

Q 17  How do you join two notifications in android?

A - Give same id for both notifications

B - Write notification code two times

C - It is not possible in android

D - A & B

E - A & C

Ans: D

Q 18  What is the main difference between set and list in android?

A - Both are same

B - Set can't contain duplicate values

C - List may contain duplicate values

D - B & C

E - A & C

Ans: D

Q 19  What is off-line synchronization in android?

A - Synchronization with internet

B - Background synchronization

C - Synchronization without internet

D - None of the above

Ans: C

Q 20  What are the main components in android?

A - Activity

B - Services

C - Broadcast Receiver

D - Content provider

Ans: A

Q 21  What is the life cycle of foreground activity in android?

A - onCreate −> onStart −> onResume −> onStop −> onRestart

B - onCreate −> onStart −> onResume −>onStop

C - onCreate −> onStart −> onResume

D - None of the above

Ans: C

Q 22 What are return types of startActivityForResult in android?

A - RESULT_OK

B - RESULT_CANCEL

C - RESULT_CRASH

D - A & B

E - B & C

Ans: D

Q 23  What is bean class in android?

A - A class used to hold states and objects

B - A bean class can be passed from one activity to another.

C - A mandatory class in android

D - None of the above

Ans: B

Q 24  What is a thread in android?

A - Same as services

B - Background activity

C - Broadcast Receiver

D - Independent dis-patchable unit is called a thread
Ans: D

Q 25  What is anchor view?

A - Same as list view

B - provides the information on respective relative positions

C - Same as relative layout

D - None of the above

Ans: B

Q 26  What is sandbox in android?

A - Each application runs securely in sandbox without interrupting another process

B - Android Box

C - Android development tool kit

D - None of the above

Ans: A

Q 27  What is off-line synchronization in android?

A - Synchronization with internet

B - Background synchronization

C - Synchronization without internet

D - None of the above

Ans: C

Q 28  What are the main components in android?

A - Activity

B - Services

C - Broadcast Receiver

D - Content provider

Ans: A

Q 29  What is thread in android?

A - Same as services

B - Background activity

C - Broadcast Receiver

D - Independent dis-patch-able unit is called a thread

Ans: D

Q 30  What are commands needed to create APK in android?

A - No need to write any commands

B - Create apk_android in command line

C - Javac,dxtool, aapt tool, jarsigner tool, and zipalign

D - None of the above

Ans: C

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