A+ 901 Test 5

Question 1

Which of the following answers list(s) example(s) of storage media type(s) that can be erased and written to multiple times?

Answer 1

DVD-RW
BD-RE
CD-RW

Question 2

Platters of a magnetic hard drive spin at a rate measured in:

Answer 2

Revolutions per minute

Question 3

The capability for replacing computer system components without causing interruption to the system operation is known as:

Answer 3

Hot swapping

Question 4

Which of the following answers list(s) example(s) of hot-swappable drives?

Answer 4

USB drive
FireWire drive
SATA drive
eSATA drive

Question 5

A type of storage device with no moving parts that uses memory chips instead of magnetic platters is commonly referred to as a Solid-State Drive (SSD).

Answer 5

True

Question 6

Flash memory card formats include:

Answer 6

xD-Picture Card
CompactFlash (CF)
Secure Digital (SD)

Question 7

Which of the terms listed below refers to a proprietary flash memory card format used mainly in older digital cameras?

Answer 7

xD

Question 8

A hybrid drive provides a combination of which of the following technologies?

Answer 8

HDD

SSD

Question 9

A type of media used as a secondary system storage in tablets and mobile phones is known as:

Answer 9

eMMC

Question 10

A storage technology that combines multiple disk drive components into a single logical unit to increase logical volume size, improve performance, or reliability is known as:

Answer 10

Redundant Array of Independent Disks (RAID)

Question 11

Which of the following solutions does not offer fault tolerance?

Answer 11

RAID 0

Question 12

RAID Level 0:

Answer 12

Is also known as disk striping
Decreases reliability (failure of any disk in the array destroys the entire array)
Is suitable for systems where performance has higher priority than fault tolerance

Question 13

RAID Level 1:

Answer 13

Requires at least 2 drives to implement
Offers improved reliability by creating identical data sets on each drive (failure of one drive does not destroy the array as each drive contains identical copy of the data)
Is also referred to as disk mirroring

Question 14

RAID Level 5:

Answer 14

Requires at least 3 drives to implement
Offers increased performance and fault tolerance (single drive failure does not destroy the array and lost data can be re-created by the remaining drives)

Question 15

Which RAID type has the highest disk overhead?

Answer 15

RAID Level 1

Question 16

RAID Level 10 requires a minimum of:

Answer 16

4 drives

Question 17

Which of the answers listed below refer to a nested (hybrid) RAID level?

Answer 17

RAID 1+0

RAID 10

Question 18

Which type of RAID level creates a striped set from a series of mirrored drives?

Answer 18

RAID 10

Question 19

A single-sided, single-layer DVD disc can store up to:

Answer 19

4.7 GB of data

Question 20

A single-sided, double-layer DVD disc can store up to:

Answer 20

8.5 GB of data

Question 21

Which of the following statements describing the Blu-ray Disc (BD) technology are true?

Answer 21

BD-RE discs can be erased and written to multiple times
A standard-size dual-layer Blu-ray disc can store up to 50 GB of data
BD-R discs can be written to once
A standard-size single-layer Blu-ray disc can store up to 25 GB of data

Question 22

A single-layer mini Blu-ray disc can store up to:

Answer 22

7.8 GB of data

Question 23

What is the capacity of a dual-layer mini Blu-ray disc?

Answer 23

15.6 GB

Question 24

Which of the answers listed below describe the features of tape drives?

Answer 24

Magnetic media
Slow seek times
High capacity

Question 25

Which of the following answers lists storage media types arranged from lowest to highest capacity?

Answer 25

Floppy disk, CD, DVD, BD (Blu-ray), Tape