Operating System Mcqs

Page No. 74

In the tree structured directories _____________


athe tree has the stem directory

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bthe tree has the leaf directory

✖


cthe tree has the root directory

✓


dall of the mentioned

✖



What is the disadvantage of the two level directory structure?


ait does not solve the name collision problem

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bit solves the name collision problem

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cit does not isolate users from one another

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dit isolates users from one another

✓



When a user refers to a particular file?


asystem MFD is searched

✖


bhis own UFD is not searched

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cboth MFD and UFD are searched

✓


devery directory is searched

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When a user job starts in a two level directory system, or a user logs in _____________


athe users user file directory is searched

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bthe system’s master file directory is not searched

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cthe master file directory is indexed by user name or account number, and each entry points to the UFD for that user

✓


dall of the mentioned

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What will happen in the two level directory structure?


aeach user has his/her own user file directory

✓


bthe system doesn’t its own master file directory

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call of the mentioned

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dnone of the mentioned

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What will happen in the single level directory?


aAll files are contained in different directories all at the same level

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bAll files are contained in the same directory

✓


cDepends on the operating system

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dNone of the mentioned

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The directory can be viewed as a _________ that translates file names into their directory entries.


asymbol table

✓


bpartition

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cswap space

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dcache

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View Answer symbol table

To organize file systems on disk _______________


athey are split into one or more partitions

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binformation about files is added to each partition

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cthey are made on different storage spaces

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dall of the mentioned

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When a cycle exists, the reference count maybe non zero, even when it is no longer possible to refer to a directory or file, due to _______


athe possibility of one hidden reference

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bthe possibility of two hidden references

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cthe possibility of self referencing

✓


dnone of the mentioned

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When keeping a list of all the links/references to a file, and the list is empty, implies that _____________


athe file has no copies

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bthe file is deleted

✓


cthe file is hidden

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dnone of the mentioned

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View Answer the file is deleted

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