Operating System Mcqs

Page No. 106

In a distributed file system, when a file’s physical storage location changes ___________


afile name need to be changed

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bfile name need not to be changed

✓


cfile’s host name need to be changed

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dfile’s local name need to be changed

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Which one of the following hides the location where in the network the file is stored?


atransparent distributed file system

✓


b hidden distributed file system

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cescaped distribution file system

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dspy distributed file system

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_______ is not possible in distributed file system.


aFile replication

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bMigration

✓


cClient interface

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dRemote access

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View Answer Migration

______ of the distributed file system are dispersed among various machines of distributed system.


aClients

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bServers

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cStorage devices

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dAll of the mentioned

✓


View Answer All of the mentioned

The file once created can not be changed is called ___________


aimmutable file

✓


bmutex file

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cmutable file

✖


d none of the mentioned

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View Answer immutable file

Which are the two complementary deadlock-prevention schemes using timestamps?


aThe wait-die & wound-wait scheme

✓


bThe wait-n-watch scheme

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cThe wound-wait scheme

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dThe wait-wound & wound-wait scheme

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What are the parts of a global unique identifier?


aLocal unique timestamp

✓


bRemote timestamp

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cClock number

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dAll of the mentioned

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What are the disadvantages of majority protocol?


aComplicated implementation

✓


bDeadlock cannot occur easily

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cBottleneck

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dAll of the mentioned

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Which of the following disadvantages follows the single coordinator approach?`


aBottleneck

✓


bSlow response

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cDeadlock

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dOne request per second

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View Answer Bottleneck

Which of the following advantages follows the single coordinator approach?


aSimple implementation

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bSimple deadlock handling

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cbottleneck

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dAll of the mentioned

✓


View Answer All of the mentioned

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