21. The process id number of the process vhand,bdflush,sched and init are
Answer : 2,3,0 and 1.
22. If every user working on unix set up is to use the printer,then the printer should be attached to
Answer : the host machine .
23. Each entry in inode table is of size
Answer : 64bytes.
24. which of the following is the command for the searching a pattern in a file
Answer : grep.
25. When fork() is given
Answer : All of the above.
26. Which of the following is not true?
Answer : sort command sorts a file word by word rather than line by line.
27. The cpu utilization is low when the system is
Answer : thrasing.
28. A programm can execute more than once simultaneously is called
Answer : re-entrant.
29. __________ scheduler selects the process that is ready to execute to CPU.
Answer : short-term scheduler.
30. Semaphores are used to solve the problem of
Answer : both b and c.