ISRO CSE 2020
Q21.
What is the complexity of the following code? sum=0; for(i=1;i<=n;i*=2) for(j=1;j<=n;j++) sum++;Which of the following is not a valid string?Q22.
How many total bits are required for a direct-mapped cache with 128 KB of data and 1 word block size, assuming a 32-bit address and 1 word size of 4 bytes?Q25.
The language which is generated by the grammar S \rightarrow a S a\mid b S b\mid a\mid b over the alphabet of {a,b} is the set ofQ27.
Three CPU-bound tasks, with execution times of 15, 12 and 5 time units respectively arrive at times 0, t and 8, respectively. If the operating system implements a shortest remaining time first scheduling algorithm, what should be the value of t to have 4 context switches? Ignore the context switches at time 0 and at the end.