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ISRO 2018: Operating System Booster Quiz- 3
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Question 1
The correct matching for the following pairs is
(A) Disk Scheduling | (1) Round robin |
(B) Queue Operation | (2) Scan |
(C) Time sharing | (3) LIFO |
(D) Stack operation | (4) FIFO |
Question 2
The following table shows the processes in the ready queue and time required for each process for completing its job.
If round robin scheduling with 5ms is used what is the average waiting time of the processes in the queue?
Process | Time(ms) |
P1 | 10 |
P2 | 5 |
P3 | 20 |
P4 | 8 |
P5 | 15 |
If round robin scheduling with 5ms is used what is the average waiting time of the processes in the queue?
Question 3
A system has 3 processes sharing 4 resources. If each process needs a maximum of 2 units then:
Question 4
The minimum time delay between the intiation of two independent memory operations is called
Question 5
If each address space represents one byte of storage space, how many address lines are needed to access RAM chips arranged in a 4 x 6 array, where each chip is 8K x 4 bits?
Question 6
Suppose you want to build a memory with 4 byte words and a capacity of 221 bits. What is type of decoder required if the memory is built using 2K x 8 RAM chips?
Question 7
Fork is
Question 8
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 final value of semaphore is 5, x will be:
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Apr 1GATE & PSU CS