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1
GATE CSE 2025 Set 1
MCQ (Single Correct Answer)
+1
-0.33

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?

A
$2^{21}$
B
$2^{20}$
C
$2^{22}$
D
$2^{24}$
2
GATE CSE 2024 Set 2
MCQ (More than One Correct Answer)
+1
-0

Which of the following tasks is/are the responsibility/responsibilities of the memory management unit (MMU) in a system with paging-based memory management?

A

Allocate a new page table for a newly created process

B

Translate a virtual address to a physical address using the page table

C

Raise a trap when a virtual address is not found in the page table

D

Raise a trap when a process tries to write to a page marked with read-only permission in the page table

3
GATE CSE 2023
MCQ (More than One Correct Answer)
+1
-0

Which one or more of the following options guarantee that a computer system will transition from user mode to kernel mode?

A
Function Call
B
malloc Call
C
Page Fault
D
System Call
4
GATE CSE 2021 Set 1
MCQ (More than One Correct Answer)
+1
-0
In the context operating systems, which of the following statements is/are correct with respect to paging?
A
Paging incurs memory overheads.
B
Paging helps solve the issue of external fragmentation.
C
Page size has no impact on internal fragmentation.
D
Multi-level paging is necessary to support pages of different sizes.
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