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Android interview questions and answers for freshers Page 6

(#M40158010) ANDROID QUESTION Keep an EYE

What is the life cycle of a content provider?
Options
1)A content provider's onCreate() funcation will be called every time if some client calls providers funcations using content resolver.
2) A content provider's onCreate() funcation will be called when first time if some client calls providers funcations using content resolver.
3) All the content providers will be created (onCreate()) after phone has booted first time
4) None

Asked In Android Ashish (8 years ago)

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(#M40158009) ANDROID QUESTION Keep an EYE

Trigger broadcast receiver only if my activity is in memory, else it should not get triggered, how to do it?

Options
1) Send broadcast only when your activity is alive
2) Register a dynamic receiver in that Activity
3) Register a static receiver in manifest file
4) It is not possible to achieve

Asked In Android Ashish (8 years ago)

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(#M40158008) ANDROID QUESTION Keep an EYE

What is the time limit of a broadcast receiver, what will happen if it crosses that time limit?

Options
1) 2 sec
2) 5 sec
3) 10 sec
4) 15 sec

Asked In Android Ashish (8 years ago)

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(#M40158007) ANDROID QUESTION Keep an EYE

What is the difference between broadcast receiver and a service?

Options
1) BroadReceiver - is like gateway for other components, can do small back ground functionality with in 10 seconds. Services - can do long running operation in the background with out having UI, and no time limit for it.
2) Service - is like gateway for other components, can do small background functionality with in 10 seconds. BroadcastReceiver - can do long running operation in the background with out having UI, and no time limit for it.
3) Option 1 is right, but both receiver and service both can interact with UI if they want to. Broadcast Receivers have time limit of 10 seconds, and they respond to broadcasted messages.
4) Option 1 is right, but a service can interact with UI if it wants. Its not mandatory that service should not have UI.

Asked In Android Ashish (8 years ago)

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(#M40158006) ANDROID QUESTION Keep an EYE

Broadcast receiver runs in which thread by default?

Options
1) Main Thread
2) background thread
3) no thread
4) none of these

Asked In Android Ashish (8 years ago)

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(#M40158005) ANDROID QUESTION Keep an EYE

What is broadcastreceiver in android?

Options
1) It a component of android which responds to system wide broadcast announcements.
2) It acts like a gateway between outside world and your application.
3) both are true
4)none

Asked In Android Ashish (8 years ago)

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(#M40158004) ANDROID QUESTION Keep an EYE

Main thread will have a looper. True or false?

Options
1) yes every thread by default will have looper
2) no only handler threads will have loopers
3) only handler threads will have loopers, but we can prepare normal threads looper also.
4) only main thread will have looper

Asked In Android Ashish (8 years ago)

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(#M40158003) ANDROID QUESTION Keep an EYE

How to avoid synchronization problems in threads?
Options
1) Use synchronized block
2) Use Synchronized methods
3) Use synchronized threads
4) both option 1 and 2 is right.

Asked In Android Ashish (8 years ago)

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(#M40158002) ANDROID QUESTION Keep an EYE

What is the difference between task, process, application, and thread?

Options
1) task, process, and application every thing is same, but thread is a part of process.
2) process and application are same. Task may contain 1 or more applications, thread is an internal part of a process created by OS.
3) process and task are same. application means program, thread is part of task.
4)process and thread are same. similarly application and thread are same.

Asked In Android Ashish (8 years ago)

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(#M40158001) ANDROID QUESTION Keep an EYE

What is the difference between thread and handler thread, in android?

Options
1) Thread will have looper and Message Queue. Default this looper will be prepared to handle incoming messages from other threads.
2) Handler thread will have looper and MessageQueue, but looper is prepared to handle incoming message.
3) Both are same. No difference, but HandlerThread is sub class of Thread class.
4) Both are same. No difference, But HandlerThread is super class of Thread class.

Asked In Android Ashish (8 years ago)

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