Library and Information Science

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1. The scheduling in which CPU is allocated to the process with least CPU-burst time is called
Priority Scheduling
Shortest job first Scheduling
Round Robin Scheduling
Multilevel Queue Scheduling

2. The term ‘page traffic’ describes
number of pages in memory at a given instant.
number of papers required to be brought in at a given page request
the movement of pages in and out of memory
number of pages of executing programs loaded in memory

3. The “turn-around” time of a user job is the
time since its submission to the time its results become available.
time duration for which the CPU is allotted to the job.
total time taken to execute the job.
time taken for the job to move from assembly phase to completion phase

4. ‘LRU’ page replacement policy is
Last Replaced Unit.
Last Restored Unit
Least Recently Used
Least Required Unit

5. Poor response time is usually caused by
Process busy
High I/O rates
High paging rates
Any of the above

6. The “blocking factor” of a file is
The number of blocks accessible to a file
The number of blocks allocated to a file
The number of logical records in one physical record
None of the above

7. A UNIX device driver is
Structured into two halves called top half and bottom half
Three equal partitions
None of the above

8. Which amongst the following is not a valid page replacement policy?
LRU policy (Least Recently Used)
FIFO policy (First in first out)
RU policy (Recurrently used)
Optimal page replacement policy

9. TII stands for
Table of incomplete instructions
table of information instructions
translation of instructions information
translation of information instruction

10. A program in execution is called

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