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1. Which module gives control of the CPU to the process selected by the short-term scheduler?
Answer.
dispatcher
2. The processes that are residing in main memory and are ready and waiting to execute are kept on a list called
Answer.
ready queue
3. The interval from the time of submission of a process to the time of completion is termed as
Answer.
turnaround time
4. Which scheduling algorithm allocates the CPU first to the process that requests the CPU first?
Answer.
first-come, first-served scheduling
5. In priority scheduling algorithm
Answer.
CPU is allocated to the process with highest priority
6. In priority scheduling algorithm, when a process arrives at the ready queue, its priority is compared with the priority of
Answer.
currently running process
7. In operating system, each process has its own ?
Answer.
• address space and global variables
• open files
• pending alarms, signals and signal handlers
8. In Unix, Which system call creates the new process?
Answer.
fork
9. A process can be terminated due to
Answer.
• normal exit
• fatal error
• killed by another process
10. What is the ready state of a process?
Answer.
when process is scheduled to run after some execution
11. What is interprocess communication?
Answer.
communication between two process
12. A set of processes is deadlock if ?
Answer.
each process is blocked and will remain so forever