Chapter:

40+ Unit 4 Solved MCQs

in Introduction to Computers

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1.	The time required to locate and retrieve the data from the storage unit is
A.	Access time
B.	Access mode
C.	Storage capacity
D.	Storage cost
Answer» A. Access time

discuss

2.	_________stores binary information using clocked sequential circuits.
A.	RAM
B.	SRAM
C.	DRAM
D.	ROM
Answer» B. SRAM

discuss

3.	_________ stores binary information in the form of electric charges that are applied to capacitors inside the chip.
A.	RAM
B.	SRAM
C.	DRAM
D.	ROM
Answer» C. DRAM

discuss

4.	The data recording density is measured in
A.	Bits per inch
B.	Bytes per inch
C.	Kilobytes per inch
D.	Megabytes per inch
Answer» B. Bytes per inch

discuss

5.	Storage capacity of a tape is equal to the product of data recording density and ________.
A.	Area of tape
B.	Breadth of tape
C.	Height of tape
D.	Length of tape
Answer» D. Length of tape

discuss

6.	Inter-track gaps are used to separate the adjacent tracks so that the interference of magnetic fields is ________.
A.	Minimized
B.	Maximized
C.	Expanded
D.	None of the above
Answer» A. Minimized

discuss

7.	Tracks are commonly divided into sections called _________.
A.	Cells
B.	Sectors
C.	Both (A) and (B)
D.	None of the above
Answer» B. Sectors

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8.	If there are 100 tracks on each disk surface, there are ________ cylinders in the disk pack.
A.	99
B.	101
C.	100
D.	1000
Answer» C. 100

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9.	If a disk pack consists of 4 plates each having 2655 tracks having 125 sectors per track. Also, each sector can store 512 bytes, then, storage capacity is approximately.
A.	1 MB
B.	1GB
C.	1 X 1010 bytes
D.	10 GB
Answer» B. 1GB

discuss

10.	The average seek time in most systems is
A.	10-100 milliseconds
B.	10-100 seconds
C.	10-100 minutes
D.	10-100 hours
Answer» A. 10-100 milliseconds

discuss

11.	The time taken for positioning the head on a specific track is called
A.	Average time
B.	Latency time
C.	Seek time
D.	None of the above
Answer» C. Seek time

discuss

12.	The rotational speed of a disk is measured in
A.	Rotation per minute
B.	Rotation per second
C.	Rotation per hour
D.	None of the above
Answer» A. Rotation per minute

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13.	Which of the following is used as wildcards
A.	/
B.	=
C.	*
D.	All of the above
Answer» C. *

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14.	For a 3.5 disk high density disk which has 80 tracks, 18 sectors/tracks, 512bytes/sector, the disk storage capacity is approximately
A.	1.4 MB
B.	1.4 GB
C.	1.4 KB
D.	None of the above
Answer» A. 1.4 MB

discuss

15.	The size for the disk platters range between _________ in diameter.
A.	1 to 10 inches
B.	1 to 15 inches
C.	1 to 20 inches
D.	1 to 14 inches
Answer» D. 1 to 14 inches

discuss

16.	A zip disk has a capacity of about
A.	1 MB
B.	70 MB
C.	150 MB
D.	100 MB
Answer» D. 100 MB

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17.	A CD is ________ in diameter and made up of polycarbonate plastic disk.
A.	4.75 inch
B.	5.75 inch
C.	6.75 inch
D.	3.75 inch
Answer» A. 4.75 inch

discuss

18.	The average latency depends on _______ of the disk.
A.	Rotation per sec
B.	Rotation per minute
C.	Rotation per hour
D.	None of the above
Answer» B. Rotation per minute

discuss

19.	The current maximum capacity of a CD-ROM is
A.	700MB
B.	750 MB
C.	900 MB
D.	1200 MB
Answer» C. 900 MB

discuss

20.	The storage capacity of a dual layer blu-ray disc is
A.	20 GB
B.	30 GB
C.	40 GB
D.	50 GB
Answer» D. 50 GB

discuss

21.	_______ is used to get the features of data accuracy, disk drive storage.
A.	Control mode
B.	Interrupt mode
C.	Isochronous mode
D.	Bulk mode
Answer» D. Bulk mode

discuss

22.	Which of the following mode guarantees the timing of data delivery?
A.	Control mode
B.	Interrupt mode
C.	Isochronous mode
D.	Bulk mode
Answer» C. Isochronous mode

discuss

23.	The USB 2.0 allows the maximum data speed at the rate of
A.	480 MB/s
B.	520 MB/s
C.	250 MB/s
D.	350 MB/s
Answer» A. 480 MB/s

discuss

24.	Bootable pen drives are also known as
A.	Heavy drives
B.	Light drives
C.	Live drives
D.	Hard drives
Answer» C. Live drives

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25.	Memory stick is launched by
A.	Sony
B.	Microsoft
C.	Motorola
D.	IBM
Answer» A. Sony

discuss

26.	The function of _______ is to get the computer software operating when the power is turned on.
A.	Bootstrap Loader
B.	Cache memory
C.	RAM
D.	ROM
Answer» A. Bootstrap Loader

discuss

27.	In ___________stored information is erased by exposing the chip for a while to ultraviolet light.
A.	EPROM
B.	ROM
C.	PROM
D.	UVEROM
Answer» D. UVEROM

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28.	________ memory is faster than the main memory.
A.	Secondary
B.	Internal processor memory
C.	Cache memory
D.	All of the above
Answer» C. Cache memory

discuss

29.	_______ refers to the mode in which memory location can be accessed in any order in the same amount of time.
A.	Sequential access
B.	Direct access
C.	Random Access Memory (RAM)
D.	None of the above
Answer» C. Random Access Memory (RAM)

discuss

30.	Memories that can be accessed only in a pre-defined sequence are
A.	Sequential access memories
B.	Direct access memories
C.	Random Access Memories (RAM)
D.	None of the above
Answer» A. Sequential access memories

discuss

31.	If the storage unit can retain the data even after the power is turned off or interrupted, it is termed as
A.	Volatile storage
B.	Non-volatile storage
C.	Temporary storage
D.	None of the above
Answer» B. Non-volatile storage

discuss

32.	The amount of data that can be stored or the number of bytes that can be stored per liner inch of tape is
A.	The data recording capacity
B.	The data recording storage
C.	The data recording density
D.	None of the above
Answer» C. The data recording density

discuss

33.	________ devices are also called random-access devices because information is literally available at random or in any order.
A.	Direct- access
B.	Sequential-access
C.	Permanent-access
D.	All of the above
Answer» A. Direct- access

discuss

34.	For faster access of data from disk packs ______ are used.
A.	Disks
B.	Tapes
C.	Cartridge
D.	Cylinders
Answer» D. Cylinders

discuss

35.	ISYS was originally developed for _______ in the year 1988.
A.	Microsoft Windows Operating System
B.	Microsoft Disk Operating System
C.	Linux Operating System
D.	None of the above
Answer» B. Microsoft Disk Operating System

discuss

36.	The disks in which both the surfaces are used for recording are called
A.	Double-Sided (DS) disks
B.	Double Density(DD) disks
C.	High Density
Answer» A. Double-Sided (DS) disks

discuss

37.	The Compact Disk (CD) was invented by
A.	Yoshiro Nakamatsu
B.	James Russell
C.	Jean Bartik
D.	Robert Dennard
Answer» B. James Russell

discuss

38.	Digital Versatile Disc-Rewritable (DVD-RW)are rewritable up to
A.	100 times
B.	1000 times
C.	500 times
D.	2000 times
Answer» B. 1000 times

discuss

39.	_______ is a communication transfer mode in which data is transferred in both directions to send and transfer the small amount of data.
A.	Interrupt mode
B.	Isochronous mode
C.	Control mode
D.	Interrupt mode
Answer» C. Control mode

discuss

40.	DVD-RW can hold ______ times more data than a full size CD-R.
A.	Two
B.	Five
C.	Seven
D.	Ten
Answer» C. Seven

discuss

40+ Unit 4 Solved MCQs

The time required to locate and retrieve the data from the storage unit is

_________stores binary information using clocked sequential circuits.

_________ stores binary information in the form of electric charges that are applied to capacitors inside the chip.

The data recording density is measured in

Storage capacity of a tape is equal to the product of data recording density and ________.

Inter-track gaps are used to separate the adjacent tracks so that the interference of magnetic fields is ________.

Tracks are commonly divided into sections called _________.

If there are 100 tracks on each disk surface, there are ________ cylinders in the disk pack.

If a disk pack consists of 4 plates each having 2655 tracks having 125 sectors per track. Also, each sector can store 512 bytes, then, storage capacity is approximately.

The average seek time in most systems is

The time taken for positioning the head on a specific track is called

The rotational speed of a disk is measured in

Which of the following is used as wildcards

For a 3.5 disk high density disk which has 80 tracks, 18 sectors/tracks, 512bytes/sector, the disk storage capacity is approximately

The size for the disk platters range between _________ in diameter.

A zip disk has a capacity of about

A CD is ________ in diameter and made up of polycarbonate plastic disk.

The average latency depends on _______ of the disk.

The current maximum capacity of a CD-ROM is

The storage capacity of a dual layer blu-ray disc is

_______ is used to get the features of data accuracy, disk drive storage.

Which of the following mode guarantees the timing of data delivery?

The USB 2.0 allows the maximum data speed at the rate of

Bootable pen drives are also known as

Memory stick is launched by

The function of _______ is to get the computer software operating when the power is turned on.

In ___________stored information is erased by exposing the chip for a while to ultraviolet light.

________ memory is faster than the main memory.

_______ refers to the mode in which memory location can be accessed in any order in the same amount of time.

Memories that can be accessed only in a pre-defined sequence are

If the storage unit can retain the data even after the power is turned off or interrupted, it is termed as

The amount of data that can be stored or the number of bytes that can be stored per liner inch of tape is

________ devices are also called random-access devices because information is literally available at random or in any order.

For faster access of data from disk packs ______ are used.

ISYS was originally developed for _______ in the year 1988.

The disks in which both the surfaces are used for recording are called

The Compact Disk (CD) was invented by

Digital Versatile Disc-Rewritable (DVD-RW)are rewritable up to

_______ is a communication transfer mode in which data is transferred in both directions to send and transfer the small amount of data.

DVD-RW can hold ______ times more data than a full size CD-R.