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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

1.

The surface area of tape is ________ the surface area of a disk.(a) much lesser than(b) much larger than(c) equal to(d) none of the mentionedI got this question in homework.This key question is from Tertiary Storage topic in portion Mass-Storage Structures of Operating System

Answer»

The CORRECT choice is (B) much LARGER than

Easy explanation - None.

2.

A typical tape drive is ________ a typical disk drive.(a) more expensive than(b) cheaper than(c) of the same cost as(d) none of the mentionedI have been asked this question in homework.Asked question is from Tertiary Storage in chapter Mass-Storage Structures of Operating System

Answer» CORRECT OPTION is (a) more EXPENSIVE than

Explanation: NONE.
3.

Random access to tape is _______ a disk seek.(a) much slower than(b) much faster than(c) comparable to(d) none of the mentionedThe question was posed to me by my college professor while I was bunking the class.I need to ask this question from Tertiary Storage in division Mass-Storage Structures of Operating System

Answer» CORRECT OPTION is (a) MUCH SLOWER than

Explanation: NONE.
4.

A tape holds _______ data than optical or magnetic disk cartridge.(a) lesser(b) more(c) much lesser(d) none of the mentionedI got this question during an interview for a job.The query is from Tertiary Storage topic in division Mass-Storage Structures of Operating System

Answer»

Right answer is (b) more

To EXPLAIN I WOULD SAY: NONE.

5.

The phase change disk is coated with a material that can freeze into either _______ or ________ state.(a) crystalline, solid(b) ice, amorphous(c) crystalline, liquid(d) crystalline, amorphousI have been asked this question in an international level competition.The question is from Tertiary Storage in chapter Mass-Storage Structures of Operating System

Answer»

The CORRECT CHOICE is (d) CRYSTALLINE, amorphous

Explanation: NONE.

6.

WORM stands for ____________(a) write only, read mandatory(b) write once, read many times(c) write only once, read multiple(d) none of the mentionedI had been asked this question in exam.My question is from Tertiary Storage in division Mass-Storage Structures of Operating System

Answer»

The CORRECT choice is (B) WRITE once, read many times

Explanation: None.

7.

The magneto-optic head flies ___________ the disk surface than a magnetic disk head does.(a) much farther from(b) much closer to(c) at the same distance as(d) none of the mentionedThis question was addressed to me in quiz.The question is from Tertiary Storage in division Mass-Storage Structures of Operating System

Answer»

The correct option is (a) MUCH farther from

The EXPLANATION: NONE.

8.

Optical disks ______ magnetism.(a) use(b) do not use(c) may use(d) none of the mentionedI have been asked this question in my homework.Enquiry is from Tertiary Storage topic in division Mass-Storage Structures of Operating System

Answer» CORRECT CHOICE is (B) do not use

For EXPLANATION: NONE.
9.

What is a magneto-optic disk?(a) primary storage(b) secondary storage(c) removable disk(d) none of the mentionedI had been asked this question during an online interview.Asked question is from Tertiary Storage topic in section Mass-Storage Structures of Operating System

Answer»

Correct option is (C) removable disk

To EXPLAIN: NONE.

10.

Tertiary storage is built with ____________(a) a lot of money(b) unremovable media(c) removable media(d) secondary storageThe question was posed to me in class test.This question is from Tertiary Storage in portion Mass-Storage Structures of Operating System

Answer» CORRECT ANSWER is (c) removable media

To EXPLAIN I would SAY: NONE.
11.

Floppy disks are examples of ____________(a) primary storage(b) secondary storage(c) tertiary storage(d) none of the mentionedI have been asked this question in an online quiz.The origin of the question is Tertiary Storage topic in division Mass-Storage Structures of Operating System

Answer» RIGHT OPTION is (c) TERTIARY storage

The BEST I can explain: None.
12.

RAID level 3 does not have _________ as in RAID level 1.(a) efficiency(b) enough storage space for data(c) storage overhead(d) time consumption overheadThis question was addressed to me by my school teacher while I was bunking the class.My query is from RAID Structure in division Mass-Storage Structures of Operating System

Answer»

The CORRECT answer is (c) STORAGE overhead

Explanation: There is ONE mirror disk for every disk in level 1.

13.

RAIDlevel ______ is also known as memory style error correcting code(ECC) organization.(a) 1(b) 2(c) 3(d) 4I had been asked this question in an internship interview.My question comes from RAID Structure topic in portion Mass-Storage Structures of Operating System

Answer» RIGHT ANSWER is (B) 2

Explanation: NONE.
14.

A single parity bit can be used for ____________(a) detection(b) multiple error corrections(c) few error corrections(d) all of the mentionedThis question was posed to me in quiz.Origin of the question is RAID Structure topic in division Mass-Storage Structures of Operating System

Answer»

The CORRECT ANSWER is (a) detection

The EXPLANATION is: NONE.

15.

RAID level ______ is also known as bit interleaved parity organisation.(a) 0(b) 1(c) 2(d) 3I had been asked this question during an internship interview.I need to ask this question from RAID Structure in division Mass-Storage Structures of Operating System

Answer» CORRECT ANSWER is (d) 3

The EXPLANATION is: NONE.
16.

RAID level _______ refers to disk mirroring.(a) 0(b) 1(c) 2(d) 3The question was asked during an online exam.I'd like to ask this question from RAID Structure in portion Mass-Storage Structures of Operating System

Answer» RIGHT ANSWER is (B) 1

Easiest EXPLANATION - NONE.
17.

RAID level ________ refers to disk arrays with striping at the level of blocks, but without any redundancy.(a) 0(b) 1(c) 2(d) 3The question was asked in quiz.Query is from RAID Structure topic in portion Mass-Storage Structures of Operating System

Answer» RIGHT OPTION is (a) 0

The EXPLANATION: NONE.
18.

The technique of duplicating every disk is known as ____________(a) mirroring(b) shadowing(c) redundancy(d) all of the mentionedI got this question during a job interview.Enquiry is from RAID Structure in division Mass-Storage Structures of Operating System

Answer»

The CORRECT OPTION is (a) mirroring

For EXPLANATION: NONE.

19.

The solution to the problem of reliability is the introduction of __________(a) aging(b) scheduling(c) redundancy(d) disksI had been asked this question during an online interview.This intriguing question comes from RAID Structure topic in chapter Mass-Storage Structures of Operating System

Answer» CORRECT CHOICE is (C) redundancy

Easy EXPLANATION - NONE.
20.

If the mean time to failure of a single disk is 100,000 hours, then the mean time to failure of some disk in an array of 100 disks will be ____________(a) 100 hours(b) 10 days(c) 10 hours(d) 1000 hoursThis question was posed to me in exam.This key question is from RAID Structure topic in division Mass-Storage Structures of Operating System

Answer» CORRECT ANSWER is (d) 1000 hours

The EXPLANATION is: NONE.
21.

RAID stands for ____________(a) Redundant Allocation of Inexpensive Disks(b) Redundant Array of Important Disks(c) Redundant Allocation of Independent Disks(d) Redundant Array of Independent DisksI have been asked this question during an interview.This is a very interesting question from RAID Structure topic in chapter Mass-Storage Structures of Operating System

Answer»

Correct answer is (d) REDUNDANT ARRAY of Independent Disks

Easy EXPLANATION - NONE.

22.

A large number of disks in a system improves the rate at which data can be read or written if ____________(a) the disks are operated on sequentially(b) the disks are operated on selectively(c) the disks are operated in parallel(d) all of the mentionedI got this question during an online exam.My doubt is from RAID Structure topic in chapter Mass-Storage Structures of Operating System

Answer»

Right CHOICE is (c) the DISKS are OPERATED in parallel

The EXPLANATION: NONE.

23.

Where performance and reliability are both important, RAID level ____ is used.(a) 0(b) 1(c) 2(d) 0+1I have been asked this question in examination.This intriguing question originated from RAID Structure in division Mass-Storage Structures of Operating System

Answer»

The CORRECT OPTION is (d) 0+1

The EXPLANATION is: NONE.

24.

If a disk fails in RAID level ___________ rebuilding lost data is easiest.(a) 1(b) 2(c) 3(d) 4I got this question by my school teacher while I was bunking the class.This is a very interesting question from RAID Structure topic in division Mass-Storage Structures of Operating System

Answer»

The correct answer is (a) 1

The best I can EXPLAIN: Data can be COPIED from another disk in RAID LEVEL 1, for other raid levels all other disks have to be accessed.

25.

RAID level 0+1 is used because, RAID level 0 provides ______ whereas RAID level 1 provides ________(a) performance, redundancy(b) performance, reliability(c) redundancy, performance(d) none of the mentionedThis question was addressed to me in final exam.Enquiry is from RAID Structure topic in chapter Mass-Storage Structures of Operating System

Answer» CORRECT OPTION is (B) performance, reliability

Easy EXPLANATION - None.
26.

The potential overuse of a single parity disk is avoided in RAID level _______(a) 3(b) 4(c) 5(d) all of the mentionedThe question was asked in a national level competition.This intriguing question originated from RAID Structure topic in portion Mass-Storage Structures of Operating System

Answer» RIGHT CHOICE is (C) 5

Best EXPLANATION: NONE.
27.

RAID level ____ spreads parity and data among all N+1 disks rather than storing data in N disks and parity in 1.(a) 3(b) 4(c) 5(d) 6This question was addressed to me in a job interview.My query is from RAID Structure topic in chapter Mass-Storage Structures of Operating System

Answer» CORRECT OPTION is (C) 5

Explanation: NONE.
28.

RAID level 5 is also known as ____________(a) bit-interleaved parity organization(b) block-interleaved parity organization(c) block-interleaved distributed parity(d) memory-style ECC organizationI have been asked this question in class test.Enquiry is from RAID Structure topic in portion Mass-Storage Structures of Operating System

Answer»

The CORRECT OPTION is (C) block-interleaved DISTRIBUTED parity

Explanation: NONE.

29.

A write of a block has to access ____________(a) the disk on which the block is stored(b) parity disk(c) a parity block(d) all of the mentionedThe question was posed to me during an interview for a job.Origin of the question is RAID Structure in division Mass-Storage Structures of Operating System

Answer» CORRECT CHOICE is (d) all of the mentioned

To EXPLAIN: NONE.
30.

The overall I/O rate in RAID level 4 is ____________(a) low(b) very low(c) high(d) none of the mentionedThe question was posed to me in class test.My question comes from RAID Structure in section Mass-Storage Structures of Operating System

Answer»

The correct OPTION is (c) high

The explanation is: All DISKS can be READ in PARALLEL.

31.

In RAID level 4, one block read, accesses __________(a) only one disk(b) all disks simultaneously(c) all disks sequentially(d) none of the mentionedThe question was asked in an international level competition.This key question is from RAID Structure in chapter Mass-Storage Structures of Operating System

Answer»

The correct OPTION is (a) only ONE disk

To EXPLAIN: Other REQUESTS are allowed to be processed by other disks.

32.

A performance problem with _________ is the expense of computing and writing parity.(a) non-parity based RAID levels(b) parity based RAID levels(c) all RAID levels(d) none of the mentionedI had been asked this question by my school principal while I was bunking the class.I want to ask this question from RAID Structure in division Mass-Storage Structures of Operating System

Answer» RIGHT option is (b) PARITY BASED RAID levels

For EXPLANATION: None.
33.

RAID level _____ is also known as block interleaved parity organisation and uses block level striping and keeps a parity block on a separate disk.(a) 1(b) 2(c) 3(d) 4The question was asked during an interview for a job.Question is taken from RAID Structure topic in portion Mass-Storage Structures of Operating System

Answer» RIGHT OPTION is (d) 4

Explanation: NONE.
34.

RAID level 3 supports a lower number of I/Os per second, because _______________(a) Every disk has to participate in every I/O request(b) Only one disk participates per I/O request(c) I/O cycle consumes a lot of CPU time(d) All of the mentionedThis question was posed to me in final exam.I would like to ask this question from RAID Structure topic in section Mass-Storage Structures of Operating System

Answer»

The CORRECT CHOICE is (a) Every disk has to participate in every I/O request

The explanation: NONE.

35.

It is __________ to reread a page from the file system than to write it to swap space and then to reread it from there.(a) useless(b) less efficient(c) more efficient(d) none of the mentionedI got this question during an interview.Enquiry is from Swap Space Management topic in portion Mass-Storage Structures of Operating System

Answer» RIGHT OPTION is (C) more efficient

Explanation: NONE.
36.

In UNIX, two per process ________ are used by the kernel to track swap space use.(a) process tables(b) swap maps(c) memory maps(d) partition mapsThis question was addressed to me in an online interview.I need to ask this question from Swap Space Management topic in section Mass-Storage Structures of Operating System

Answer»

The CORRECT choice is (B) SWAP maps

The BEST explanation: None.

37.

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.(a) special routines must be(b) normal file system routines can be(c) normal file system routines cannot be(d) swap space storage manager isI got this question by my school principal while I was bunking the class.The origin of the question is Swap Space Management in portion Mass-Storage Structures of Operating System

Answer»

Right answer is (d) swap space STORAGE MANAGER is

To explain I would SAY: NONE.

38.

If the swap space is simply a large file, within the file system, ____________ used to create it, name it and allocate its space.(a) special routines must be(b) normal file system routines can be(c) normal file system routines cannot be(d) swap space storage manager isI got this question during an online interview.The query is from Swap Space Management in chapter Mass-Storage Structures of Operating System

Answer»

The correct choice is (B) normal FILE SYSTEM routines can be

The explanation: NONE.

39.

A single swap space ______ reside in two places.(a) can(b) cannot(c) must not(d) none of the mentionedI got this question during an online exam.My question comes from Swap Space Management in portion Mass-Storage Structures of Operating System

Answer»

The CORRECT CHOICE is (a) can

The EXPLANATION is: NONE.

40.

Linux __________ the use of multiple swap spaces.(a) allows(b) does not allow(c) may allow(d) none of the mentionedI got this question in a national level competition.The query is from Swap Space Management topic in division Mass-Storage Structures of Operating System

Answer»

Correct choice is (a) allows

The best I can explain: Putting these swap SPACES on separate DISKS reduces the load PLACES on the I/O SYSTEM.

41.

Using swap space significantly _________ system performance.(a) increases(b) decreases(c) maintains(d) does not affectI have been asked this question during an interview.I would like to ask this question from Swap Space Management topic in chapter Mass-Storage Structures of Operating System

Answer» CORRECT answer is (b) decreases

Explanation: Disk access is MUCH slower than MEMORY access.
42.

Virtual memory uses disk space as an extension of _________(a) secondary storage(b) main memory(c) tertiary storage(d) none of the mentionedThe question was asked by my college professor while I was bunking the class.My question comes from Swap Space Management in portion Mass-Storage Structures of Operating System

Answer» CORRECT OPTION is (B) MAIN memory

Easiest explanation - None.
43.

An unrecoverable error is known as _________(a) hard error(b) tough error(c) soft error(d) none of the mentionedI have been asked this question by my college director while I was bunking the class.Enquiry is from Disk Management in portion Mass-Storage Structures of Operating System

Answer» CORRECT CHOICE is (a) HARD error

Explanation: NONE.
44.

The scheme used in the above question is known as _______ or ________(a) sector sparing & forwarding(b) forwarding & sector utilization(c) backwarding & forwarding(d) sector utilization & backwardingThis question was addressed to me in a national level competition.The question is from Disk Management in division Mass-Storage Structures of Operating System

Answer»

The correct OPTION is (a) sector SPARING & forwarding

Easiest EXPLANATION - None.

45.

In SCSI disks used in high end PCs, the controller maintains a list of _________ on the disk. The disk is initialized during ________ formatting which sets aside spare sectors not visible to the operating system.(a) destroyed blocks, high level formatting(b) bad blocks, partitioning(c) bad blocks, low level formatting(d) destroyed blocks, partitioningThe question was posed to me during an interview.I'm obligated to ask this question of Disk Management in chapter Mass-Storage Structures of Operating System

Answer» CORRECT choice is (C) BAD blocks, low level formatting

The best I can explain: NONE.
46.

Defective sectors on disks are often known as __________(a) good blocks(b) destroyed blocks(c) bad blocks(d) none of the mentionedThe question was posed to me in semester exam.Query is from Disk Management in chapter Mass-Storage Structures of Operating System

Answer»

The CORRECT ANSWER is (c) BAD blocks

Easiest EXPLANATION - NONE.

47.

A disk that has a boot partition is called a _________(a) start disk(b) end disk(c) boot disk(d) all of the mentionedThe question was posed to me during an interview for a job.This intriguing question comes from Disk Management in chapter Mass-Storage Structures of Operating System

Answer»

The correct choice is (C) boot disk

The BEST I can explain: NONE.

48.

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.(a) main(b) bootloader(c) bootstrap(d) romThe question was posed to me during an interview for a job.I want to ask this question from Disk Management in chapter Mass-Storage Structures of Operating System

Answer» RIGHT CHOICE is (c) bootstrap

The BEST I can explain: NONE.
49.

For most computers, the bootstrap is stored in ________(a) RAM(b) ROM(c) Cache(d) Tertiary storageThe question was asked in an internship interview.This interesting question is from Disk Management in chapter Mass-Storage Structures of Operating System

Answer» RIGHT CHOICE is (B) ROM

Easiest EXPLANATION - NONE.
50.

The two steps the operating system takes to use a disk to hold its files are _______ and ________(a) partitioning & logical formatting(b) swap space creation & caching(c) caching & logical formatting(d) logical formatting & swap space creationI have been asked this question in an online quiz.My query is from Disk Management in section Mass-Storage Structures of Operating System

Answer»

The correct option is (a) PARTITIONING & logical formatting

To explain: NONE.