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MCQs Computer Fundamentals|UGC-NET|GATE|Computer Science

11.The memory allocation scheme subject to "external" fragmentation is
A.segmentation
B.swapping
C.pure demand paging
D.multiple fixed contiguous partitions
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12.Virtual memory is
A.simple to implement
B.used in all major commercial operating systems
C.less efficient in utilization of memory
D.useful when fast I/O devices are not available
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13.Before proceeding with its execution, each process must acquire all the resources it needs is called
A.hold and wait
B.No pre-emption
C.circular wait
D.starvation
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14.The main reason to encrypt a file is to .......
A.Reduce its size
B.Secure it for transmission
C.Prepare it for backup
D.Include it in the start-up sequence
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15."LRU" page replacement policy is
A.Last Replaced Unit
B.Last Restored Unit
C.Least Recently Used
D.Least Required Unit
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16.Which of the following is not a fundamental process state
A.ready
B.terminated
C.executing
D.blocked
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17.ODBC stands for
A.Object Database Connectivity
B.Oral Database Connectivity
C.Oracle Database Connectivity
D.Open Database Connectivity
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18.Which two files are used during operations of the DBMS
A.Query languages and utilities
B.DML and query language
C.Data dictionary and transaction log
D.Data dictionary and query language
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19.A protocol is a set of rules governing a time sequence of events that must take place
A.between peers
B.between an interface
C.between modems
D.across an interface
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20.In communication satellite, multiple repeaters are known as
A.detector
B.modulator
C.stations
D.transponders
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Author Does Not claim of any answer these answers are as per expert opinion


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