ISRO CSE 2015
Q12.
Suppose two jobs, each of which needs 10 minutes of CPU time, start simultaneously. Assume 50% I/O wait time. How long will it take for both to complete, if they run sequentially?Q13.
In a lottery scheduler with 40 tickets, how we will distribute the tickets among 4 processes P1,P2,P3 and P4 such that each process gets 10%, 5%, 60% and 25% respectively?Q14.
Consider the following program fragment if(a > b) if(b > c) s1; else s2;s2 will be executed ifQ15.
A certain population of ALOHA users manages to generate 70 request/sec. If the time is slotted in units of 50 msec, then channel load would beQ16.
In CRC if the data unit is 100111001 and the divisor is 1011 then what is dividend at the receiver?Q17.
The boolean expression A B+A B^{\prime}+A^{\prime} C+A C is independent of the boolean variableQ19.
Consider the following Relationship Entity Diagram(ERP)Which of the following possible relations will not hold if the above ERD is mapped into a relation model?Q20.
The following program main() { inc(); inc(); inc(); } inc() { static int x; printf("%d", ++x); }