GATE CSE · 2024 · CS
Question 64: Computer Organization and Architecture
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Question 64
CSNAT2 marksNeeds review
Consider a 32-bit system with 4 KB page size and page table entries of size 4 bytes each. Assume 1 KB =
bytes. The OS uses a 2-level page table for memory management, with the page table containing an outer page directory and an inner page table. The OS allocates a page for the outer page directory upon process creation. The OS uses demand paging when allocating memory for the inner page table, i.e., a page of the inner page table is allocated only if it contains at least one valid page table entry.An active process in this system accesses 200 unique pages during its execution, and none of the pages are swapped out to disk. After it completes the page accesses, let
denote the minimum and
denote the maximum number of pages across the two levels of the page table of the process.The value of X+Y is ________
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2024CS
GATE CSE 2024 · Paper 2
Computer Science and Information Technology · Original paper archive
- Section
- Computer Science and Information Technology
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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