The “turn-around” time of a user job is the
(A) time since its submission to the time its results become available.
(B) time duration for which the CPU is allotted to the job.
(C) total time taken to execute the job.
(D) time taken for the job to move from assembly phase to completion phase.
Ans: (C)
Which of the following can be used as a criterion for classification of data structures used in language processing.
(A) nature of a data structure (B) purpose of a data structure
(C) lifetime of a data structure (D) all of the above.
Ans: (D)
Program ‘preemption’ is
(A) forced de allocation of the CPU from a program which is executing on the CPU.
(B) release of CPU by the program after completing its task.
(C) forced allotment of CPU by a program to itself.
(D) a program terminating itself due to detection of an error.
Ans: (A)
An assembler is
(A) programming language dependent.
(B) syntax dependant.
(C) machine dependant.
(D) data dependant.
Ans: (C)
Which of the following is not a fundamental process state
(A) ready (B) terminated
(C) executing (D) blocked
Ans: (D)
‘LRU’ page replacement policy is | |
| (A) Last Replaced Unit. (C) Least Recently Used. | (B) Last Restored Unit. (D) Least Required Unit. |
Ans: (C)
Which of the following approaches do not require knowledge of the system state?
(A) deadlock detection. (B) deadlock prevention.
(C) deadlock avoidance. (D) none of the above.
Ans: (D)
Which amongst the following is not an advantage of Distributed systems?
(A) Reliability (B) Incremental growth
(C) Resource sharing (D) None of the above
Ans: (A)
Which of the following loader is executed when a system is first turned on or restarted
(A) Boot loader (B) Compile and Go loader
(C) Bootstrap loader (D) Relating loader
Ans: (C)
Poor response time is usually caused by
(A) Process busy
(B) High I/O rates
(C) High paging rates
(D) Any of the above
Ans: (D)
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