What is the purpose of the Android 'FragmentManager'? MCQ with Answer and Explanation

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What is the purpose of the Android 'FragmentManager'?

A. To handle fragment transactions

B. To manage fragments (UI components) within an activity

C. Both A and C

D. To manage activities

Answer: Option C

Solution (By JKSSB Mock Tests)

FragmentManager handles adding, removing, and replacing fragments, as well as managing back stack.

This question belongs to: Computer Operating Systems

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Which of the following is a type of file system that supports journaling?

A. All of the above

B. ext3

C. ext4

D. NTFS

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Correct Answer: Option A

Explanation:
ext3, ext4, and NTFS all support journaling, which logs changes to prevent corruption.

This question belongs to: Computer Operating Systems

Question #2

What is the purpose of the Android 'TextView'?

A. To format text

B. To handle text input

C. To edit text

D. To display text on the screen

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Correct Answer: Option D

Explanation:
TextView is a UI component for displaying read-only text; EditText is for editable text.

This question belongs to: Computer Operating Systems

Question #3

In Windows, the 'Registry' has five root keys. Which one contains information about the current hardware configuration?

A. HKEY_LOCAL_MACHINE\HARDWARE

B. HKEY_CURRENT_USER

C. HKEY_CLASSES_ROOT

D. HKEY_CURRENT_CONFIG

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Correct Answer: Option D

Explanation:
HKEY_CURRENT_CONFIG (HKCC) stores information about the current hardware profile; HKLM\HARDWARE also contains hardware info.

This question belongs to: Computer Operating Systems

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