Operating System Mcqs

Page No. 89

The _______ program initializes all aspects of the system, from CPU registers to device controllers and the contents of main memory, and then starts the operating system.


amain

✖


bbootloader

✖


cbootstrap

✓


drom

✖


View Answer bootstrap

The two steps the operating system takes to use a disk to hold its files are _______ and ________


apartitioning & logical formatting

✓


bswap space creation & caching

✖


ccaching & logical formatting

✖


dlogical formatting & swap space creation

✖



The header and trailer of a sector contain information used by the disk controller such as _________ and _________


amain section & disk identifier

✖


berror correcting codes (ECC) & sector number

✓


csector number & main section

✖


ddisk identifier & sector number

✖



The data structure for a sector typically contains ____________


aheader

✖


bdata area

✖


ctrailer

✖


dall of the mentioned

✓


View Answer all of the mentioned

The process of dividing a disk into sectors that the disk controller can read and write, before a disk can store data is known as ____________


apartitioning

✖


bswap space creation

✖


clow-level formatting

✓


dnone of the mentioned

✖


View Answer low-level formatting

It is __________ to reread a page from the file system than to write it to swap space and then to reread it from there.


auseless

✖


bless efficient

✖


cmore efficient

✓


dnone of the mentioned

✖


View Answer more efficient

In UNIX, two per process ________ are used by the kernel to track swap space use.


aprocess tables

✖


bswap maps

✓


cmemory maps

✖


dpartition maps

✖


View Answer swap maps

When a fixed amount of swap space is created during disk partitioning, more swap space can be added only by?
I) repartitioning of the disk
II) adding another swap space elsewhere


aonly I

✖


bonly II

✖


cboth I and II

✓


dneither I nor II

✖


View Answer both I and II

For swap space created in a separate disk partition where no file system or directory structure is placed, _____________ used to allocate and deallocate the blocks.


aspecial routines must be

✖


bnormal file system routines can be

✖


cnormal file system routines cannot be

✖


dswap space storage manager is

✓



If the swap space is simply a large file, within the file system, ____________ used to create it, name it and allocate its space.


aspecial routines must be

✖


bnormal file system routines can be

✓


cnormal file system routines cannot be

✖


dswap space storage manager is

✖



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