InterviewSolution
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InterviewSolution
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.
| 51. |
The header and trailer of a sector contain information used by the disk controller such as _________ and _________(a) main section & disk identifier(b) error correcting codes (ECC) & sector number(c) sector number & main section(d) disk identifier & sector numberI have been asked this question at a job interview.This question is from Disk Management topic in division Mass-Storage Structures of Operating System |
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Answer» RIGHT option is (b) ERROR correcting codes (ECC) & SECTOR number The explanation: NONE. |
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| 52. |
The data structure for a sector typically contains ____________(a) header(b) data area(c) trailer(d) all of the mentionedThis question was addressed to me in a job interview.Asked question is from Disk Management in chapter Mass-Storage Structures of Operating System |
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Answer» CORRECT ANSWER is (d) all of the mentioned The BEST I can EXPLAIN: NONE. |
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| 53. |
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 ____________(a) partitioning(b) swap space creation(c) low-level formatting(d) none of the mentionedThe question was asked by my college director while I was bunking the class.The origin of the question is Disk Management in portion Mass-Storage Structures of Operating System |
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Answer» CORRECT CHOICE is (C) low-level formatting Easy EXPLANATION - NONE. |
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| 54. |
In the ______ algorithm, the disk arm goes as far as the final request in each direction, then reverses direction immediately without going to the end of the disk.(a) LOOK(b) SCAN(c) C-SCAN(d) C-LOOKI got this question by my college professor while I was bunking the class.I would like to ask this question from Disk Scheduling topic in chapter Mass-Storage Structures of Operating System |
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Answer» RIGHT answer is (a) LOOK To EXPLAIN I would SAY: NONE. |
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| 55. |
In the _______ algorithm, the disk head moves from one end to the other, servicing requests along the way. When the head reaches the other end, it immediately returns to the beginning of the disk without servicing any requests on the return trip.(a) LOOK(b) SCAN(c) C-SCAN(d) C-LOOKI have been asked this question at a job interview.The doubt is from Disk Scheduling topic in chapter Mass-Storage Structures of Operating System |
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Answer» The CORRECT OPTION is (C) C-SCAN |
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| 56. |
In the ______ algorithm, the disk arm starts at one end of the disk and moves toward the other end, servicing requests till the other end of the disk. At the other end, the direction is reversed and servicing continues.(a) LOOK(b) SCAN(c) C-SCAN(d) C-LOOKI had been asked this question during an internship interview.My query is from Disk Scheduling topic in portion Mass-Storage Structures of Operating System |
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Answer» CORRECT ANSWER is (B) SCAN Best EXPLANATION: NONE. |
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| 57. |
SSTF algorithm, like SJF __________ of some requests.(a) may cause starvation(b) will cause starvation(c) does not cause starvation(d) causes agingThis question was posed to me during an interview.My doubt is from Disk Scheduling topic in chapter Mass-Storage Structures of Operating System |
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Answer» The correct choice is (a) MAY CAUSE starvation |
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| 58. |
On media that use constant linear velocity (CLV), the _____________ is uniform.(a) density of bits on the disk(b) density of bits per sector(c) the density of bits per track(d) none of the mentionedThis question was addressed to me by my college director while I was bunking the class.Question is from Disk Scheduling topic in section Mass-Storage Structures of Operating System |
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Answer» Right choice is (C) the density of bits per TRACK |
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| 59. |
Magnetic tape drives can write data at a speed ________ disk drives.(a) much lesser than(b) comparable to(c) much faster than(d) none of the mentionedI have been asked this question in an online quiz.Question is from Disk Scheduling in division Mass-Storage Structures of Operating System |
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Answer» The correct option is (B) comparable to |
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| 60. |
Random access in magnetic tapes is _________ compared to magnetic disks.(a) fast(b) very fast(c) slow(d) very slowThis question was posed to me at a job interview.My doubt is from Disk Scheduling topic in portion Mass-Storage Structures of Operating System |
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Answer» The CORRECT CHOICE is (d) very slow |
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| 61. |
If a process needs I/O to or from a disk, and if the drive or controller is busy then ____________(a) the request will be placed in the queue of pending requests for that drive(b) the request will not be processed and will be ignored completely(c) the request will be not be placed(d) none of the mentionedI got this question during an online interview.I'm obligated to ask this question of Disk Scheduling in chapter Mass-Storage Structures of Operating System |
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Answer» RIGHT choice is (a) the REQUEST will be placed in the queue of PENDING requests for that drive Explanation: NONE. |
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| 62. |
Whenever a process needs I/O to or from a disk it issues a ______________(a) system call to the CPU(b) system call to the operating system(c) a special procedure(d) all of the mentionedThe question was asked in my homework.I would like to ask this question from Disk Scheduling topic in section Mass-Storage Structures of Operating System |
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Answer» CORRECT OPTION is (b) SYSTEM call to the OPERATING system Explanation: NONE. |
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| 63. |
What is the disk bandwidth?(a) the total number of bytes transferred(b) total time between the first request for service and the completion on the last transfer(c) the total number of bytes transferred divided by the total time between the first request for service and the completion on the last transfer(d) none of the mentionedI had been asked this question during a job interview.My question is taken from Disk Scheduling in division Mass-Storage Structures of Operating System |
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Answer» The correct option is (c) the total number of bytes TRANSFERRED divided by the total time between the first request for SERVICE and the COMPLETION on the last transfer |
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| 64. |
______ controller sends the command placed into it, via messages to the _____ controller.(a) host, host(b) disk, disk(c) host, disk(d) disk, hostI got this question during an online interview.My question is from Disk Scheduling in chapter Mass-Storage Structures of Operating System |
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Answer» RIGHT CHOICE is (C) host, disk The explanation: None. |
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| 65. |
What is the host controller?(a) controller built at the end of each disk(b) controller at the computer end of the bus(c) all of the mentioned(d) none of the mentionedThis question was addressed to me at a job interview.The origin of the question is Disk Scheduling in chapter Mass-Storage Structures of Operating System |
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Answer» Right answer is (B) CONTROLLER at the COMPUTER END of the bus |
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| 66. |
A floppy disk is designed to rotate ___________ as compared to a hard disk drive.(a) faster(b) slower(c) at the same speed(d) none of the mentionedThis question was posed to me during an online interview.Question is taken from Disk Scheduling in chapter Mass-Storage Structures of Operating System |
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Answer» RIGHT CHOICE is (B) slower Easiest EXPLANATION - NONE. |
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| 67. |
When the head damages the magnetic surface, it is known as _________(a) disk crash(b) head crash(c) magnetic damage(d) all of the mentionedI have been asked this question in unit test.The origin of the question is Disk Scheduling in portion Mass-Storage Structures of Operating System |
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Answer» CORRECT ANSWER is (B) HEAD crash Explanation: NONE. |
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| 68. |
The time taken for the desired sector to rotate to the disk head is called ____________(a) positioning time(b) random access time(c) seek time(d) rotational latencyThis question was posed to me during an interview for a job.This is a very interesting question from Disk Scheduling in chapter Mass-Storage Structures of Operating System |
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Answer» CORRECT OPTION is (d) ROTATIONAL latency The EXPLANATION: NONE. |
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| 69. |
The set of tracks that are at one arm position make up a ___________(a) magnetic disks(b) electrical disks(c) assemblies(d) cylindersI got this question during an interview.My question is from Disk Scheduling topic in portion Mass-Storage Structures of Operating System |
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| 70. |
The time taken to move the disk arm to the desired cylinder is called the ____________(a) positioning time(b) random access time(c) seek time(d) rotational latencyThe question was posed to me by my college professor while I was bunking the class.This is a very interesting question from Disk Scheduling in division Mass-Storage Structures of Operating System |
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Answer» CORRECT ANSWER is (C) seek time Easiest EXPLANATION - None. |
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| 71. |
The heads of the magnetic disk are attached to a _____ that moves all the heads as a unit.(a) spindle(b) disk arm(c) track(d) none of the mentionedI have been asked this question in semester exam.This intriguing question comes from Disk Scheduling in portion Mass-Storage Structures of Operating System |
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Answer» RIGHT choice is (B) disk arm The EXPLANATION is: None. |
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| 72. |
In _______ information is recorded magnetically on platters.(a) magnetic disks(b) electrical disks(c) assemblies(d) cylindersI have been asked this question in an interview.This intriguing question originated from Disk Scheduling in portion Mass-Storage Structures of Operating System |
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| 73. |
A process is moved to wait queue when I/O request is made with ____________(a) non-blocking I/O(b) blocking I/O(c) asynchronous I/O(d) synchronous I/OThe question was asked during an interview.I would like to ask this question from I/O Subsystem in chapter Mass-Storage Structures of Operating System |
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Answer» The CORRECT ANSWER is (b) BLOCKING I/O |
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| 74. |
Which one of the following connects high-speed high-bandwidth device to memory subsystem and CPU.(a) Expansion bus(b) PCI bus(c) SCSI bus(d) None of the mentionedThis question was addressed to me in class test.I want to ask this question from I/O Subsystem in division Mass-Storage Structures of Operating System |
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Answer» RIGHT CHOICE is (a) EXPANSION bus Explanation: NONE. |
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| 75. |
Which buffer holds the output for a device?(a) spool(b) output(c) status(d) magicThe question was posed to me in unit test.Query is from I/O Subsystem topic in portion Mass-Storage Structures of Operating System |
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| 76. |
The device-status table contains ____________(a) each I/O device type(b) each I/O device address(c) each I/O device state(d) all of the mentionedThis question was addressed to me during a job interview.I want to ask this question from I/O Subsystem in division Mass-Storage Structures of Operating System |
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Answer» The CORRECT CHOICE is (d) all of the mentioned |
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| 77. |
Which hardware triggers some operation after certain programmed count?(a) programmable interval timer(b) interrupt timer(c) programmable timer(d) none of the mentionedI got this question in an online interview.I would like to ask this question from I/O Subsystem in chapter Mass-Storage Structures of Operating System |
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Answer» RIGHT CHOICE is (a) programmable INTERVAL timer Easiest explanation - NONE. |
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| 78. |
Device drivers are implemented to interface ____________(a) character devices(b) block devices(c) network devices(d) all of the mentionedThe question was asked by my school principal while I was bunking the class.My query is from I/O Subsystem in division Mass-Storage Structures of Operating System |
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Answer» RIGHT OPTION is (d) all of the mentioned To EXPLAIN: NONE. |
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| 79. |
When hardware is accessed by reading and writing to the specific memory locations, then it is called ____________(a) port-mapped I/O(b) controller-mapped I/O(c) bus-mapped I/O(d) none of the mentionedI have been asked this question in an online quiz.The question is from I/O Subsystem in portion Mass-Storage Structures of Operating System |
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Answer» The CORRECT CHOICE is (d) NONE of the mentioned |
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| 80. |
The host sets _____ bit when a command is available for the controller to execute.(a) write(b) status(c) command-ready(d) controlI have been asked this question during a job interview.This question is from I/O Subsystem topic in portion Mass-Storage Structures of Operating System |
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Answer» The CORRECT CHOICE is (C) command-ready |
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| 81. |
The data-in register of I/O port is ____________(a) Read by host to get input(b) Read by controller to get input(c) Written by host to send output(d) Written by host to start a commandThe question was posed to me in homework.Origin of the question is I/O Subsystem in division Mass-Storage Structures of Operating System |
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Answer» Correct ANSWER is (a) READ by HOST to GET input |
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| 82. |
I/O hardware contains ____________(a) Bus(b) Controller(c) I/O port and its registers(d) All of the mentionedI got this question in examination.I'm obligated to ask this question of I/O Subsystem topic in section Mass-Storage Structures of Operating System |
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Answer» RIGHT ANSWER is (d) All of the mentioned Easiest EXPLANATION - NONE. |
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