GATE CS 2025 Set 1 — Question 14
Go beyond PYQs with Success TrackerAI-powered personalised practice and doubt support. Unlimited practice on eligible plans; AI usage limits apply.MCQ+1 / -0.33EasyPaging & Address TranslationMemory ManagementOperating System
Operating System → Memory Management → Paging & Address Translation
Last updated
Question
Consider a demand paging memory management system with 32-bit logical address, 20-bit physical address, and page size of 2048 bytes. Assuming that the memory is byte addressable, what is the maximum number of entries in the page table?
Correct answer
(A) 2²¹
Solution
In a paging system, the number of entries in the page table is equal to the number of pages in the logical address space.
1.Logical Address Space Size: Given a 32-bit logical address, the total addressable space is bytes.
2.Page Size: Given as 2048 bytes, which is bytes.
3.Number of Pages: .
Therefore, the maximum number of entries in the page table is .Continue learning with Success Tracker
A step still unclear? Work through it with support
Use Success Tracker to ask about the reasoning, then try another GATE CS question to check your understanding.
AI-powered practice· Unlimited practice on eligible plans
- PYQs with solutions
- Attempt available previous-year questions, then compare your reasoning with the worked solution. Coverage varies by stream.
- Practice that adapts
- Choose a topic, work on weaker areas and bookmark questions to revisit. Your attempts feed your progress tracking.
- AI doubt support
- Ask follow-up questions about a step or concept while practising, instead of stopping at the final answer.
Unlimited practice is available on eligible plans. Free practice and AI usage have limits; check the current plan allowances before choosing.
This page stays readable without an account. AI responses can be wrong; check them against the solution and source material.
More questions on Memory Management
2026 Set 2 Q23Which one of the following CPU scheduling algorithms cannot be preemptive?2026 Set 1 Q29With respect to deadlocks in an operating system, which of the following statements is/are FALSE?2026 Set 1 Q31In the context of relational database normalization, which of the following statements is/are true?2026 Set 1 Q35Consider a system consisting of instances of a resource , being shared by 5 processes.…2026 Set 2 Q51Consider three processes P1, P2, and P3 running identical code, as shown in the pseudocode below. A…