In Android, which permission category protects sensitive information such as contacts and location? MCQ with Answer and Explanation

In Android, which permission category protects sensitive information such as contacts and location?
A. Dangerous permissions
B. System permissions
C. Signature permissions
D. Normal permissions
Answer: Option A
Solution (By JKSSB Mock Tests)
Dangerous permissions are those that could affect user privacy or device operation, requiring user approval at runtime.

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Practice More Operating Systems Questions

Question #1
In Android, which service allows apps to send and receive messages between components?
A. Service
B. Broadcast Receiver
C. Intent
D. Content Provider

Correct Answer: Option C


Explanation:
Intents are messaging objects used to request actions from other app components, such as starting an activity or broadcasting.

This question belongs to: Computer Operating Systems
Question #2
Which of the following is a file system used by macOS?
A. FAT32
B. NTFS
C. ext4
D. APFS

Correct Answer: Option D


Explanation:
APFS (Apple File System) is the default on macOS; others are not native.

This question belongs to: Computer Operating Systems
Question #3
What memory allocation issue occurs when there is sufficient total free memory space across the system, but it is split into tiny non-contiguous blocks that cannot accommodate a new request?
A. Page Table Mismatch
B. Internal Fragmentation
C. Virtual Thrashing Loop
D. External Fragmentation

Correct Answer: Option D


Explanation:
External fragmentation leaves memory broken into tiny segments scattered between active processes, preventing continuous allocations for larger tasks.

This question belongs to: Computer Operating Systems