Tag: operating systems

Questions Related to operating systems

Functions of android.bluetooth API is:
technology operating systems

  1. scanning for devices

  2. enabling applications of other devices

  3. connecting with devices

  4. managing data transfer between devices

  5. disabling applications of other devices

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Correct Option: A,C,D

The API level of the Android Platform version 2.0 and version 2.2 respectively are:
technology operating systems

  1. 5 & 7

  2. 4 & 7

  3. 5 & 8

  4. 6 & 8

  5. 7 & 9

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Correct Option: C

Core components of an application like activities, services, and broadcast receivers etc., are activated through messages called as:
technology operating systems

  1. contents

  2. filter

  3. intents

  4. activator

  5. servlets

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Correct Option: C

In Android, which Statement is used to get ContentResolver within the Activity or other application component?
technology operating systems

  1. ContentResolver cr = getContentResolver();

  2. ContentResolver cr = getContentResolver(cr);

  3. ContentResolver cr = getContentResolver(content);

  4. ContentResolver cr = getContentResolver(void);

  5. ContentResolver cr = getContentResolver(context);

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Correct Option: A

List the valid abstract methods declared in content provider class?
technology operating systems

  1. query()

  2. insert()

  3. update()

  4. delete()

  5. onCreate()

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Correct Option: A,B,C,D,E

The extension for android application file or which file the user may download to run the applications on their mobile?
technology operating systems

  1. .exe

  2. .apk

  3. .dvk

  4. .and

  5. dk

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Correct Option: B

In Android, ___________ is used to prevent applications (as a measure of security) from disrupting each other.
technology operating systems

  1. Cryptography

  2. Wrapping

  3. Sandbox

  4. Coding and Decoding

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Correct Option: C

Choose the true regarding AndroidManifest.xml File in Android?

technology operating systems

  1. AndroidManifest.xml file is present in root directory of an application

  2. AndroidManifest.xml file is responsible for naming java package for the application

  3. c.)AndroidManifest.xml File is an optional for an application

  4. It describes the components of the application — the activities, services, broadcast receivers,

  5. AndroidManifest.xml is not responsible for declaring the minimum level of the Android API that

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Correct Option: A,D

In Android, for playing and recording audio/video what is name of the class should to be used?
technology operating systems

  1. MediaPlayer & MediaRecorder

  2. MediaPlay & MediaRecord

  3. PlayMedia & RecordMedia

  4. Mediaplay & Mediarecord

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Correct Option: A

3D(3 Dimension) Graphics in Android is based on which specification?
technology operating systems

  1. OpenGL ES 1.0

  2. OpenGL ES 1.1

  3. OpenGL ES 1.2

  4. OpenGL ES 1.3

  5. OpenGL ES 1.4

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Correct Option: A