Android Online Quiz

Following quiz provides Multiple Choice Questions (MCQs) related to Android. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Questions and Answers

Q 1 - Is it possible to have an activity without UI to perform action/actions?

A - Not possible

B - Wrong question

C - Yes, it is possible

D - None of the above

Answer : C

Explanation

Generally, every activity is having its UI(Layout). But if a developer wants to create an activity without UI, he can do it.

Q 2 - What is android view group?

A - Collection of views and other child views

B - Base class of building blocks

D - None of the Above

Answer : A

Explanation

View Group is collaborating with views and other child views,It is an invisible container and base classes for layouts.

Q 3 - What are the functionalities in asyncTask in android?

A - onPreExecution()

B - doInBackground()

C - onProgressUpdate()

D - onPostExecution()

E - onPostExecution()

Answer : E

Explanation

AsyncTask needs doInBackground() and remaining methods are optional. As a developer we should need to implement all methods which are given above.

Q 4 - How to upgrade SQlite the database from a lower version to higher version in android SQlite?

A - Using helper Class

B - Using cursor

C - Using intent

D - None of the above

Answer : A

Explanation

In helper class, we can pass the version numbers in incremental order.

Q 5 - What is singleton class in android?

A - A class that can create only one object

B - Anonymous class

D - Manifest file

Answer : A

Explanation

There is only an object which can be accessed by all other class.

Q 6 - How many ports are allocated for new emulator?

D - None of the above.

Answer : A

Every emulator or device is allocated by 2 ports based on port availability.

Q 7 - Data can be read from local source XML in android through

A - XML resource parser

B - XML pull parsing

C - DOM parsing

D - None of the above

Answer : A

Using with XML resource parser, we can read local resource XML in android.

Q 8 - Fragment in Android can be found through

B - findFragmentByID()

C - getContext.findFragmentByID()

D - FragmentManager.findFragmentByID()

Answer : D

Using FragmentManager.findFragmentByID(R.id.fragment), we can find the fragment/fragments which are placed on the layout

Q 9 - 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

Answer : A

It is not mandatory, the program will work perfectly without fail, but the programmer has to implement the life cycle of activity.

Q 10 - 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

Answer : A

Bean class can hold other states and objects. It contains all fields which are private with setter and getter.

android_questions_answers.htm

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