1
GATE CSE 2014 Set 3
Numerical
+2
-0
Consider a paging hardware with a TLB. Assume that the entire page table and all the pages are in the physical memory. It takes 10 milliseconds to search the TLB and 80 milliseconds to access the physical memory. If the TLB hit ratio is 0.6, the effective memory access time (in milliseconds) is______________.
Your input ____
2
GATE CSE 2014 Set 1
Numerical
+2
-0
Assume that there are $$3$$ page frames which are initially empty. If the page reference string is $$1, 2, 3, 4, 2, 1, 5, 3, 2, 4, 6,$$ the number of page faults using the optimal replacement policy is______________.
Your input ____
3
GATE CSE 2012
MCQ (Single Correct Answer)
+2
-0.6
Consider the virtual page reference string $$$1,2,3,2,4,1,3,2,4,1$$$
On a demand paged virtual memory system running on a computer system that has main memory size of $$3$$ page frames which are initially empty. Let $$LRU,$$ $$FIFO$$ and $$OPTIMAL$$ denote the number of page faults under the corresponding page replacement policy. Then
A
$$OPTIMAL < LRU < FIFO$$
B
$$OPTIMAL < FIFO < LRU$$
C
$$OPTIMAL = LRU$$
D
$$OPTIMAL = FIFO$$
4
GATE CSE 2009
MCQ (Single Correct Answer)
+2
-0.6
A multilevel page table is preferred in comparison to a single level page table for translating virtual address to physical address because.
A
It reduces the memory access time to read or write a memory location.
B
It helps to reduce the size of page table needed to implement the virtual address space of a process.
C
It is required by the translation look aside buffer.
D
It helps to reduce the number of page faults in page replacement algorithms.
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