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Operating Systems · Memory Management and Virtual Memory
Official IIT answer key · IIT Bombay · Audited Aug 2026
GATE CSE 2021 Set 1 Q11 · MSQ · 1 mark
Key concept
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Topic notes
Memory management and virtual memory is a high-yield, computation-heavy topic in GATE CS, frequently carrying 2-mark NAT and MCQ/MSQ questions. The exam heavily emphasizes multi-level page table sizing, hierarchical bit-splitting, page replacement algorithm simulation (FIFO, LRU, OPTIMAL, MRU, LIFO), and Effective Memory Access Time (EMAT) calculations involving TLBs and disk transfers. Recent years have introduced variants such as bounded lookahead optimal replacement, code-based loop/array access patterns, and TLB reach sizing.
Full Memory Management and Virtual Memory guide →In the context of operating systems, which of the following statements is/are correct with respect to paging?
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