Operating System Mcqs

Page No. 80

There is no __________ with linked allocation.


ainternal fragmentation


bexternal fragmentation


cstarvation


dall of the mentioned



In the linked allocation, the directory contains a pointer to which block?
I. first block
II. last block


aI only


bII only


cBoth I and II


dNeither I nor II


View Answer Both I and II

When in contiguous allocation the space cannot be extended easily?


athe contents of the file have to be copied to a new space, a larger hole


bthe file gets destroyed


cthe file will get formatted and lost all its data


dnone of the mentioned



During compaction time, other normal system operations _______ be permitted.


acan


bcannot


cis


dnone of the mentioned


View Answer cannot

For processes to request access to file contents, they need _____________


ato run a separate program


bspecial interrupts


cto implement the open and close system calls


dnone of the mentioned



For each file there exists a ___________ that contains information about the file, including ownership, permissions and location of the file contents.


ametadata


bfile control block


cprocess control block


dall of the mentioned


View Answer file control block

Metadata includes _____________


aall of the file system structure


bcontents of files


cboth file system structure and contents of files


dnone of the mentioned



The file organization module knows about _____________


afiles


blogical blocks of files


cphysical blocks of files


dall of the mentioned


View Answer all of the mentioned

A device driver can be thought of like a translator. Its input consists of _____ commands and output consists of _______ instructions.


ahigh level, low level


blow level, high level


ccomplex, simple


dlow level, complex


View Answer high level, low level

Consider a disk where blocks 2, 3, 4, 5, 8, 9, 10, 11, 12, 13, 17, 18, 25, 26 and 27 are free and the rest of the blocks are allocated. Then the free space bitmap would be _____________


a10000110000001110011111100011111…


b110000110000001110011111100011111…


c01111001111110001100000011100000…


d001111001111110001100000011100000…



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