ISRO CSE 2015 PYQ

If there are 32 segments, each size 1 k bytes, then the logical address should have

In a lottery scheduler with 40 tickets, ticket distribution among 4 processes P1, P2, P3, P4 for 10%, 5%, 60%, 25% is:

Which data structure is best suited for ready queue in Round-Robin CPU scheduling?

A hard disk system has the following parameters :
Number of tracks =500
Number of sectors/track =100
Number of bytes /sector =500
Time taken by the head to move from one track to adjacent track =1 ms
Rotation speed =600 rpm.
What is the average time taken for transferring 250 bytes from the disk ?

Counting semaphore initial value = 7. After 20 P operations and 15 V operations, resulting value is: