What is the function of the 'Translation Lookaside Buffer (TLB)' in hardware memory management? MCQ with Answer and Explanation

What is the function of the 'Translation Lookaside Buffer (TLB)' in hardware memory management?
A. To store internet encryption keys permanently.
B. To optimize audio output signals.
C. To buffer documents headed to local area network printers.
D. To serve as a high-speed hardware cache holding recent virtual-to-physical address mappings to bypass slower page table lookups.
Answer: Option D
Solution (By JKSSB Mock Tests)
The TLB is an associative hardware cache inside the MMU that stores recent page translations, dramatically accelerating virtual memory access speeds.

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Practice More Operating Systems Questions

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Which Linux command is used to count the number of lines, words, and characters in a file?
A. ls -l
B. count
C. grep -c
D. wc

Correct Answer: Option D


Explanation:
wc (word count) with -l, -w, -c options counts lines, words, and characters respectively.

This question belongs to: Computer Operating Systems
Question #2
Which Linux command is used to stop a process with a signal?
A. killall
B. kill
C. pkill
D. All of the above

Correct Answer: Option D


Explanation:
kill, pkill, and killall all send signals to processes; they differ in how targets are specified.

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Question #3
In a multiprocessor system, what is NUMA?
A. New Unified Memory Access
B. Non-Universal Memory Architecture
C. Network Unified Memory Architecture
D. Non-Uniform Memory Access, where memory access times vary based on the processor's location

Correct Answer: Option D


Explanation:
NUMA is a memory architecture where each processor has local memory, but accessing remote memory takes longer, affecting performance.

This question belongs to: Computer Operating Systems