Chapter 6: Storage and Multimedia: The Facts and More

Multiple Choice
1. The material that diskettes are made of is:
A Mylar
B. magnetic oxide.
C. silicon.
D. Semiconductor.
Answer: A Difficulty: Moderate

2. Mylar is a material that is used to manufacture:

A CD-ROM disks.
B. hard disks.
C. diskettes.
D. RAID drives.
Answer: C Reference: Diskettes Difficulty: Moderate

3. A coating of magnetic _cnables disks to represent data in

magnetic form.
A film
B. sulphur
C. Mylar
D. oxide
Answer: D Reference: Hard Disks Difficulty: Moderate

4. When the read/write head touches the surface of a disk:

A. data can be read into memory.
B. data can be written to the disk from memory.
C. data is destroyed on the disk.
D. the hard drive will stop spinning.
Answer: C Reference: Hard Disks Difficulty: Moderate

5. The read/write head is located:

A on a floppy diskette,
B. on the end of an access arm
C. on a disk pack.
D. on a port outside the computer.
Answer: B Reference: Hard Disks Difficulty: Easy

6. A disk pack is a:
A diskette protected by a plastic cover.
B. collection of rigid platters and access anns.
C. special type of disk used in Zip drives.
D. housing that contains the entire hard disk drive mechanism.
Auswer: B Reference: Hard Disks Difficulty: Moderate

7. The purpose of the access arm is to:

A support the housing of the disk pack.
B. spin the disk platters.
C. position the read/write heads.
D. allow users to access the diskeite.
Answer: C Reference: Hard Disks DiFFIculty: Moderate

8. For hard disk drives there will be one access arm for
A. the whole drive.
B. each read/write head.
C. each pair of read/write heads.
D. each disk pack
Answer: C Reference: Hard Disks Difficulty: Moderate
9. Which sentence best describes the actions of the access arms and
read/write heads on a
Standard disk drive?
A. Access amms move independently of each other, and all read/write
heads read at the same time
B. Access ams move independently of each other, and one read/write head
roads at a time.
C. Access arms move together as a unit, and all read/write heads read
at the same time.
D. Access arms move together as a unit, and one read/write head
reads at a time.
Answer: D Reference: Hard Disks:

10. Data striping is a technology that:

A increases the storage capacity of a disk.
B. improves speed by allowing simultaneous reads/writes.
C. improves reliability by building in fault tolerance.
D. prevents head crashes by placing a protective "stripe" over the platter.
Answer: B Reference: Hard Disks in

11. The RAID technology that contributes to fault tolerance is called:

A disk mirroring.
B. tolerant computing.
C. data striping.
D. multiple-track sectoring
Answer: A Reference: Hard Disks in Groups Difficulty: Moderate

12. Disk mirroring is a technology that:

A increases the storage capacity of a disk.
B. improves speed by allowing simultaneous reads/writes.
C. improves reliability by building in fault tolerance.
D. prevents head crashes by placing a protective "stripe" over the platter.
Answer: C Reference: Hard Disks in Groups Difficulty: Moderate
13. The RAID technology that contributes to improved system
performance is called:
A. disk mirroring
B. tolerant computing,
C. data striping.
D. multiple truck sectoring.

Answer: C Reference: Hard Disks in Groups Dilliculty: Moderate

14. Which RAID technology addresses the problem that

could occur if a head crash takes place on one of the disk platters?
A. RAID-1
B. RAID:0
C. Data striping
D. Zone recording
answer .A Reference: Hard Disks in Groups
15. The term that refers to in circular portion of the disk is:
A machine cycle.
B. sector
C. cylinder.
D. track.
Answer: D Reference: How Data Is Organized on a Disk
16. A collection of similarly positioned tracks on multiple platters
of a disk pack is called a:
A cluster
B. Sector.
C. cylinder
D. track
Answer: C Reference: How Data Is Organized on a Disk Difficulty:
Moderate

17. A collection of adjacent sectors that are treated as a unit of stonige by

the operating
System is a:
A cluster.
B. sector
C. cylinder.
D. track.
Answer: A Reference: How Data Is Organized on a Disk
18. The smallest addressable unit of storage on a disk is called as
A cluster.
B. sector.
C. cylinder.
D. imck.
Answer: B Reference: How Data Is Organized on a Disk

19. What is the correct sequence of the smallest-to-largest unit of

storage space?
A cluster➙ sector ➙cylinder➙ track
B. Sector → cluster➙ cylinder➙ sector
C. sector➙ cylinder → track → cluster
D. Sector ➙cluster → track ➙cylinder
Answer: D
Reference: How Dali Is Organized on a Disk Difficulty: Hard

20. Which is the correct statement regarding zone recording and traditional
sectoring
A. With zone recording, a sector in an outer track contains more data
than a sector in
an inner trick B. With zone recording, sector in an outer track takes more
spice than a sector in
an inner track C. With traditional sectoring, il sector in an outcr trick
takes more space than a
Sector in an inner tack. D. With traditional sectoring, a sector in an outer tack
contains less data than a
sector in an inner track. Answer: C
Reference: How Data Is Organized on a Disk Difficulty: Hard

21. Which is the correct statement regarding zone recording and

traditional sectoring?
A. Withi zone recording, outer tracks contain more sectors than inner trucks. B.
With traditional sectoring, inner trucks contain more sectors than outer trucks. C.
With zone recording, outer tracks have lower sector density than with
traditional
sectoring. D. With traditional sectoring, cach sector located on an outer
track contains less data
than would be the case with zone recording. Answer: A
Reference: How Data Is Organized on a Disk Difficulty: Hard

22. Which of the following depends on the precision of seek

movements?
A Number of sectors per track B Number of tracks per surface C. Where
cylinders are placed
D. Sizes of sector clusters Answer: B
Reference: How Data Is Organized on a Disk Difficulty: Hard

23. Which of the following is a way of increasing the storage

capacity of a disk?
A Disk cuching B. Data striping C. Zone recording
D. Disk mitoring Answer: C
Reference: How Data Is Organized on a Disk Dirriculty: Hard
24. Which action involves the movement of access arms?
A Seck B. Head switch C. Rotational delay
D. Data transfer Answer: A
Reference: Disk Access Speed
Difficulty: Moderate
25. Which of the following is a way of minimizing the need to perform
physical reads on a

A. Disk caching B. Data striping C. Zone recording

D. Disk mirroring Answer: A Reference: Disk Access Speed
Difficulty: Hard
26. All of the following techniques help to improve the
overall speed of secondary storage
input except:
A. Vertical track alignment. B. disk caching. C. disk mirroring.
D. data striping. Answer: C Reference: Hard Disks in Groups, How Data
Is Organized on a Disk, Disk Access Speed Difficulty: Hard

27. The most time-consuming disk drive action required for

processing a disk rend/write is:
A Scek. B. head switch C. rotational delay.
D. data transfer. Answer: A
Reference: Disk Access Speed Difficulty: Moderate

28. Which action involves waiting for a sector to position itself under a
read/write head?
A Seck B. Head switch C. Rotational delay
D. Data transfer Answer: C
Reference: Disk Access Speed Difficulty: Moderate
29. Which action involves positioning a read/write head over a track?
A. Seck B. Head switch C. Rotational delay D. Dala tmns[er
Reference: Disk Access Speed Difficulty: Moderate
Answer: A

30. The term that refers to storic devices recorded via the heat emitted
from Insers is:
A. magnetic B. read-only. C. CD.
D. optical. Answer: D Reference: Optical Disk Storage Difficulty: Easy
31. A WORM disk can be:
A. fcd only. B. read and written to like a diskette. C. written to a single time
and read many times.
D. written to many times but read only once. Answer: C Reference:
Optical Disk Storage Difficulty: Easy

32. The heat from the lasers on the surface of an optical storage disk
causes:
A bit patiems to be placed on the optical disk B. magneto-optical outputs to be
generale. C. light beams to emit from the CDROM drive.
D. data to be copied to the hard disk. Answer: A Reference: Optical Disk
Storage Dificulty: Moderate

33. Which type of drive allows multiple reads and writes to

optical storage media?
A. DVD-ROM B, CD-RW C. CD-ROM
D, CD-R Answer: B Reference: Compact Disks
Difficulty: Easy

34. Which of the following is an advantage of DVD over CD

technology?
A. Storage capacity B. Access speed C. Reliability
D. CD-R Answer: A Reference: Compact Disks
Difficulty: Easy

35. Which stonge medium is limited to sequential data access?

A. RAID B. Tape cartridge C. Magnetic tape
D. CD-ROM Answer: C
Reference: Magnetic Tape Storage Difficulty: Moderate

36. Which storage medium has the greatest storage capacity?

A. CD-ROM B. Tape cartridge C. Diskette
D. Zip disk Answer: B
Reference: Backup Systems
Dimiculty: Moderate

37. A collection of related fields is called a:

B. record. C. database D. key.

Reference: Data: Getting Organized
Answer: B
DiTiculty: Moderate
38. A field that uniquely identifies a record is called a(n):
A. ID. B. unique lield. C. data identifier.
D. key. Answer: D
Reference: Data: Getting Organized
Difficulty: Moderate

39. Which of the following is the correct largest-to-suullest

sequence of storage units?
A Field → character record > database → file B. Field → character →
record → file database C. Charter → field record > file → database
D. Chumcter record field → database → file Answer: C Reference: Data:
Getting Organized
Difficulty: Moderate

40. The file organization that involves ordering records based on key
fields and requires
reading of all records prior to the one desired is:
A. scquential B. dircct. C. indexed D. keyed.
Reference: File Organization: Three Methods Difficulty:
Moderate
Answer: A
41. The file organization that uses lushing algorithms to allow
direct access to records is

A sequential.
random. C. indexed. D. keyed.
Reference: File Organization: Three Methods
Answer: B
Difficulty: Moderate

42. The file organization that is appropriate for magnetic tape

storage media is:
A sequential. B. random. C. indexed.
D. keyed. Answer: A
Reference: File Organization: Three Methods Difficulty:
Moderate
43. A(n) algorithm progrunmatically converts a record's key field value into
a disk
address, thereby supporting direct access.
A. indexing B. colliding C. key conversion
D. lushing Answer: D
Reference: File Organization: Three Methods Difficulty: Moderate
occurs if two key fields are hashed to the same disk address. A. disk
crash B. program error C. collision D. hash error
Reference: File Organization: Three Methods Difficulty: Moderate
Answer: C

processing systems requiring no user

45. Sequential files are commonly used in
input.
A online B. real-time C. batch
D. transaction Answer: C
Reference: Batch Processing
Difficulty: Moderate

46. Direct access files are commonly used in

systems, which operate in real time and provide quick responses to user
requests.
A batch B. direct C. master D. online
Reference: Transaction Processing Difficulty: Moderate

Fill in the Blank:

47. Diskeites are made from with a coating of iron oxide. Answer: Mylar
Reference: Diskettes
Dimculty: Moderate

48. A coating of magnetic enables disks to represent data in magnetic

form. Answer: oxide Reference: Hard Disks
Difficulty: Moderate
49. When the read/write head touches the surface of a disk, a
OCCUE Answer: head crash. Reference: Hard Disks
Duriculty: Moderate

50. The Answer: access ai

positions a read/write head to the proper track.
Relerence: Hard Disks
Difficulty: Moderate

51. The acronym RAID stands for Answer: redundant array of independent
disks
Reference: Hard Disks in Groups
Difficulty: Ensy

52. RAID-O uses

to spread files over multiple disks. Answer: data striping Relerence:
Hard Disks in Groups Difficulty: Moderate

53. The RAID-I technology that contributes to Gault tolerance is called Answer:
disk mirroring Reference: Hard Disks in Groups Dificulty: Moderate

54. A Answer: Inck

is a circular portion on the surface of a disk.
Reference: How Data Is Organized on a Disk
Difficulty: Moderate

55. A collection of similarly positioned tracks on multiple

platters of a disk pack is called a

Answer: cylinder
Reference: How Data Is Organized on a Disk
Difficulty: Moderate
56. A is a collection of adjacent sectors that are treated as a unit of
storage by the
operating system. Answer: cluster Reference: How Data Is
Organized on a Disk DilTiculty: Moderale

57. A Answer: sector

is the smallest addressablc unit of stonge on a disk.
Reference: How Data Is Organized on a Disk Difficulty: Moderate

is the method in which a larger number of sectors are placed in outer

tracks hun in inner tracks so as to take maximum advantage of pluysical space
on the disk. Answer: Zonc recording Reference: How Data Is
Organized on a Disk Difficulty: Moderate

59
involves keeping disk data in RAM in order to minimize the necessity
for performing reads to the disk. Answer: Disk cachini: Reference: Disk
Access Speed Difficulty: Moderate

60.
is the time it takes a sector to position itself under a read/write
head while the disk spins. Answer: Rotational delay Reference:
Disk Access Speed Difficulty: Moderate

61. The acronym WORM stands for Answer: write otice, read many
Reference: Optical Disk Storage Difficulty: Moderate

62. The acronym CD-ROM stands for Answer: compact disk read-only
memory Difficulty: Moderate
Reference: Optical Disk Storage

63. The acronym CD-R stands for Answer: compact disk-recordable

Difficulty: Moderate
Reference: Optical Disk Storage

64. The acronym CD-RW stands for Answer: compact disk-rewriteable

Reserence: Optical Disk Storage Difficulty: Moderate

65. The acronym DVD stands for Answer: digital versatile disk
Reference: Optical Disk Stomge
Difficulty: Moderate

66. A collection of related fields is called a Answer: record R eference:

Data: Getting Organized
Difficulty: Moderate

field uniquely identifies a record, Reference: Data: Getting Organized

Answer: key
Difficulty: Moderate

_file organization orders records based on key fields and requires

reading all records from the beginning of the file until the desired
record is found Answer: sequential Reference: File Organization:
Three Methods Difficulty: Moderate

69. Random file organization uses _algorithms to allow direct access to

records. Answer: hushing Reference: File Organization: Three Methods
Dirficulty: Moderate

70. Magnetic tape slomige media supports only one file organization, which
is Answer: sequential Relerence: File Organization: Three Methods
Difficulty: Moderate

71. A
occurs if two key fields are hashed to the same disk address.
Reference: File Organization: Three Methods Difficulty: Moderate
Answer: collision

processing systems requiring no user

72. Sequential files are commonly used in
input. Answer: batch Reference: Batch Processing
Difficulty: Moderate

73. Direct access files are commonly used in _systems, which

operate in real time
and provide quick responses to user requests. Answer: online
Reference: Transaction Processing Dimculty: Moderate

Matching:

74. Match the following disk components to their appropriate meanings:

1. cylinder
1. concentric circles on disk Il access arm
b. holds read/write hcads III. sector
c. smallest unit raid by operating system IV. cluster
d. same-positioned tracks on multiple platters V. tracks
e smallest readable unit on disk

Answer: 1-d. II-b. IIl-c. IV-c. V-a Reference: Hard Disk, How Data Is
Organized on a Disk
Difficulty: Moderate

75. Match the following disk terms with their meanings:

I zone recording
a. technology utilizing disk mirroring II. RAID-O
b. RAM location for holding disk data IIT, RAID-I
c. uneven distribution of sectors on tracks IV. seek
d. access arm positioned to proper track V. disk cache
e. data striping for performance improvement

Answer: I-c, Il-e, 111-a. IV-d, V-b Reference: Multiple locations in Magnetic
Disk Storage
Difficulty: Hard

76. Match the following terms with their associated phrases:

1. disk mirroring
11. higli-capacity diskelle II. data striping
b. crcates fault tolerance TIL. Jaz
c. file spread over independerit disks IV. cylinder
d. removable hard disk V. Zip
e. Vertical alignment of tracks

Answer: I-b. Il-c, III-d, IV-c. V-a Reference: Multiple locations in Magnetic
Disk Storage
Difficulty: Hard

77. Match the following disk drive actions to the proper step in the
input/output sequence:
I data transfer IL lead switch b. second III. rotational delay c. third IV seck
d. fourth

Answer: I-d, Il-b, III-c, IV-a

Reference: Disk Access Speed
Dirficulty: Moderate

78. Match the following terms with their meanings:

LCD-ROM
A. WORM IL CD-R
b. rewritable III. CD-RW
c. read-only

Answer: I-c. II-a. III b

Reference: Compact Disks
Difficulty: Easy

79. Match the following termits with their associated phrases:

I synonym
process requiring direct record access IL head crash b. vidco
compression standard III. DASD
c. data destruction IV. MPEG
d. hashing collision V. online
e disks devices

Reference: Multiple locations in chapter

Answer: 1-d. Il-c. Ill-c. IV-b, V-a Difficulty: Modemite

80. Match the following tenns with their associated pliranes

1. pack
1. unique identific II. tape
b. sequential storage media III. key
c. multiple platters IV. index
d. baitch processing file V. master
c. file organization

Reference: Multiple locations in chapter"

Answer: 1-c, 11-5, III-a. IV-e, V-d Dificulty: Moderate
81. Match the following icons with their associated phrases:
I. optical disk
1. composed of fields II. срі
b. rcdundant independent disks III. HiFD
c. alternative diskette technology IV. RAID
d. tape density V. record
c. using laser technology

Answer: I-c, II-d, III-c, IV-b, V-B Difficulty: Moderate

Reference: Multiple locations in chapter

82. Match the following terms with their associated phrases:

1. backup
1. primary use of tape cartridge IL MO
b, select the track III. rotation
c. requires high-capacity optical storage IV. seck
d. select the sector V. multimedia c. hybrid disk technology

er: 1-a. Il-c. III-d. IV-b. V-c Difficulty: Moderate

Reference: Multiple locations in chapter

83. Match the following terms with their associated phrases:

1. trinsiction 11. non-interactive processing IL batch
b. business event III. drive
c. CD-R IV. WORM
d. secondary stonge mechanism di 11ddr%
C. surface, track, and sector

Reference: Multiple locations in chapter

Answer: I-b. 11-3, 111-d, IV-c, V-c Difficulty: Moderate