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20 votes
5 answers
2
GATE CSE 2009 | Question: 9, ISRO2016-52
In which one of the following page replacement policies, Belady's anomaly may occur? FIFO Optimal LRU MRU
In which one of the following page replacement policies, Belady's anomaly may occur?FIFOOptimalLRUMRU
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17 votes
2 answers
4
ISRO2016-51
For the real time operating system, which of the following is the most suitable scheduling scheme? Round robin First come first serve Pre-emptive Random scheduling
For the real time operating system, which of the following is the most suitable scheduling scheme?Round robinFirst come first servePre-emptiveRandom scheduling
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14 votes
5 answers
5
ISRO2016-46
With single resource, deadlock occurs if there are more than two processes competing for that resources if there are only two processes competing for that resources if there is a single process competing for that resources none of these
With single resource, deadlock occursif there are more than two processes competing for that resourcesif there are only two processes competing for that resourcesif there...
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9 votes
7 answers
7
ISRO2016-47
A system has 3 processes sharing 4 resources. If each process needs a maximum of 2 units, then Deadlock can never occur Deadlock may occur Deadlock has to occur None of these
A system has 3 processes sharing 4 resources. If each process needs a maximum of 2 units, thenDeadlock can never occurDeadlock may occurDeadlock has to occurNone of these...
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8 votes
3 answers
8
ISRO2016-45
At a particular time of computation the value of a counting semaphore is 7. Then 20 $P$ operations and $x$ $V$ operations were completed on this semaphore. If the new value of semaphore is $5$, $x$ will be 18 22 15 13
At a particular time of computation the value of a counting semaphore is 7. Then 20 $P$ operations and $x$ $V$ operations were completed on this semaphore. If the new val...
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9 votes
5 answers
9
ISRO2016-22
Let the page fault service time be $10$ ms in a computer with average memory access time being $20$ ns. If one page fault is generated for every $10^6$ memory accesses, what is the effective access time for the memory? 21.4 ns 29.9 ns 23.5 ns 35.1 ns
Let the page fault service time be $10$ ms in a computer with average memory access time being $20$ ns. If one page fault is generated for every $10^6$ memory accesses, w...
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