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


bfile name need not to be changed


cfile’s host name need to be changed


dfile’s local name need to be changed



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


cescaped distribution file system


dspy distributed file system



_______ is not possible in distributed file system.


aFile replication


bMigration


cClient interface


dRemote access


View Answer Migration

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


aClients


bServers


cStorage devices


dAll of the mentioned


View Answer All of the mentioned

The file once created can not be changed is called ___________


aimmutable file


bmutex file


cmutable file


d none of the mentioned


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


cThe wound-wait scheme


dThe wait-wound & wound-wait scheme



What are the parts of a global unique identifier?


aLocal unique timestamp


bRemote timestamp


cClock number


dAll of the mentioned



What are the disadvantages of majority protocol?


aComplicated implementation


bDeadlock cannot occur easily


cBottleneck


dAll of the mentioned



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


aBottleneck


bSlow response


cDeadlock


dOne request per second


View Answer Bottleneck

Which of the following advantages follows the single coordinator approach?


aSimple implementation


bSimple deadlock handling


cbottleneck


dAll of the mentioned


View Answer All of the mentioned

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