What is the smallest logic allocation unit of data storage on a hard disk drive recognized by an operating system's file system? MCQ with Answer and Explanation

Question
What is the smallest logic allocation unit of data storage on a hard disk drive recognized by an operating system's file system?
A. Sector
B. Cluster
C. Track
D. Platter
Answer: Option B
Solution (By JKSSB Mock Tests)
A cluster (or allocation unit) is a group of sectors combined by the operating system's file system to form the smallest legal space where a file can be stored.
This question belongs to: Computer Memory and Storage Devices
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Practice More Memory and Storage Devices Questions

Question #1
What is the role of a memory management unit (MMU)?
A. To manage cache memory
B. To translate virtual addresses to physical addresses
C. To increase the memory capacity
D. To handle disk I/O
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Correct Answer: Option B

Explanation:
The MMU is a hardware component that translates virtual memory addresses used by the CPU into physical addresses in RAM, enabling virtual memory and protection.
This question belongs to: Computer Memory and Storage Devices
Question #2
How many bytes are there in one Megabyte (MB) when calculated using binary measurement standard?
A. 1024 Bytes
B. 1,000,000 Bytes
C. 1,048,576 Bytes
D. 1000 Bytes
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Correct Answer: Option C

Explanation:
In binary notation, 1 KB = 1024 Bytes, and 1 MB = 1024 KB. Therefore, 1024 * 1024 = 1,048,576 Bytes.
This question belongs to: Computer Memory and Storage Devices
Question #3
What is the purpose of a memory expansion slot?
A. To connect a hard disk
B. To provide power to memory
C. To allow additional RAM modules to be installed
D. To add a graphics card
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Correct Answer: Option C

Explanation:
Memory expansion slots (DIMM slots) are used to add more RAM modules to increase system memory.
This question belongs to: Computer Memory and Storage Devices
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