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GATE 1994
October 9, 2023
GATE 2023
October 9, 2023
GATE 1994
October 9, 2023
GATE 2023
October 9, 2023

UGC NET JRF November 2020 Paper-2

Question 12
Consider a single-level page table system, with the page table stored in the memory. If the hit rate to TLB is 80%, and it takes 15 nanoseconds to search the TLB, and 150 nanoseconds to access the main memory, then what is the effective memory access time, in nanoseconds?
A
185
B
195
C
205
D
175
Question 12 Explanation: 
Effective memory access time =0.8(15+150)+0.2(15+150+150)
=132+63
=195 ns
Correct Answer: B
Question 12 Explanation: 
Effective memory access time =0.8(15+150)+0.2(15+150+150)
=132+63
=195 ns

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