Q1. Which of the following is not an advantage of multiprogramming?
(a) increased throughput
(b) shorter response time
(c) decreased operating system overhead
(d) ability to assign priorities to jobs
(e) none of the above
Q2. Time quantum is defined in:
(a) Shortest job scheduling algorithm
(b) Round robin scheduling algorithm
(c) Priority scheduling algorithm
(d) Multilevel queue scheduling algorithm
(e) All of the above
Q3. The problem of thrashing is affected significantly by:
(a) program structure
(b) program size
(c) primary storage size
(d) none of the above
(e) all of the above
Q4.What is the ready state of a process?
(a) when process is scheduled to run after some execution
(b) when process is unable to run until some task has been completed
(c) when process is using the CPU
(d) none of the mentioned
(e) any one of the above
Q5. Which method should be most suitable for an optimized time-shared operating system?
(a) deadlock prevention
(b) deadlock avoidance
(c) deadlock recovery
(d) mutual exclusion
(e) None of the above
Q6. The process manager has to keep track of:
(a) the status of each program
(b) the priority of each program
(c) the information management support to a programmer using the system
(d) both (a) and (b)
(e) none of the above
Q7. In which of the following page replacement policies, Belady’s anomaly occurs?
(a) LRU
(b) Round robin
(c) LIFO
(d) FIFO
(e) none of the above
Q8. An incremental backup:
(a) should be done each month
(b) uses more tapes
(c) saves only files that have recently changed
(d) saves all files
(e) none of the above
Q9. In MS-DOS relocatable object files and load modules have extensions:
(a) .obj and .com or .exe respectively
(b) .com and .obj , respectively
(c) .exe and .obj respectively
(d) .das and .exe respectively
(e) none of the above
Q10. A hardware device that is capable of executing a sequence of instructions, is known as:
(a) CPU
(b) ALU
(c) RAM
(d) Processor
(e) None of the above
