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.

Q 1 - What is a context in android ?

A - It is an interface to store global information about an application

B - It is used to create new components.

C - Android has two contexts, those are getContext() and getApplicationContext()

D - All of Above

E - None of Above

Answer : D

Explanation

Context is used to create new components or objects like views and it is used to start activity and services. Android has two kinds of contexts and those are getContext() and getApplicationContext().

Q 2 - What is the difference between margin and padding in android layout?

A - Margin is specifying the extra space left on all four sides in layout

B - Padding is used to offset the content of a view by specific px or dp

C - Both A and B are correct

D - None of the above

Answer : C

Explanation

Margin specifies the space left on four sides in the layout and padding specifies the exact position where the element going to be taking place in the layout.

Q 3 -What is ANR in android?

A - When the application is not responding ANR will occur.

B - Dialog box is called as ANR.

C - When Android forcefully kills an application, it is called ANR

D - None of the above

Answer : A

Explanation

When an Application is not responding ANR will be occur, and it will stop the process or an application

Q 4 - How to store heavy structured data in android?

A - Shared Preferences

B - Cursor

C - SQlite database

D - Not possible

Answer : C

Explanation

We can store structured data in SQlite database only. SQlite database is very efficient and faster to read and store the data.

Q 5 -What is JNI in android?

A - Java network interface

B - Java interface

C - Image editable tool

D - Java native interface.

Answer : D

Explanation

Java Native interfaces are used to call native/cross applications, which are written in C and C++ languages.

Q 6 - What is log message in android?

A - Log message is used to debug a program.

B - Same as printf()

C - Same as Toast().

D - None of the above.

Answer : A

The log message is used to debug a program. Some of log messages are shown below

log.d-Debugging log
log.i Informative log
log.e-Error log 
log.w-Warning log
log.v-verbose log

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 - What is fragment life cycle in android?

A - onReceive()

B - onCreate()

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

D - None of the above

Answer : C

Fragment life cycle is as shown below −

onAttach()
OnCreate()
onCreateView()
onActivityCreated()
onStart()
onResume()
onPause()
onStop()
onDestroyView()
onDestroy()
onDetach()

Q 9 - 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

Answer : A

Android version 2.2 is deprecated so we don't need to call MIN version to be 1

Q 10 - 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

C - A & B

D - A & C

Answer : E

Give same id for both notifications.

nm.notify(1,notification);

android_questions_answers.htm