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CompTIA A+ 2019 > Core 1: Storage Devices > Flashcards

Core 1: Storage Devices Flashcards

1
Q

Which of the following can be used to describe the features of Solid-State Drives (SSDs)? (Select 3 answers)

  • Low performance
  • Relatively high device cost
  • Lower capacity in comparison to magnetic drives
  • High performance
  • Relatively low device cost
  • Higher capacity in comparison to magnetic drives
A
  • Relatively high device cost
  • Lower capacity in comparison to magnetic drives
  • High performance
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2
Q

Which type of internal hard drive combines high performance and capacity at a relatively low device cost?

  • SSD
  • Flash drive
  • Magnetic drive
  • USB drive
  • SSHD
A

SSHD

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3
Q

Which of the following are characteristic features of traditional magnetic drives? (Select 3 answers)

  • High capacity
  • Low device cost
  • High performance
  • Low capacity
  • High device cost
  • Low performance
A
  • High capacity
  • Low device cost
  • Low performance
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4
Q

Which of the following sizes is the most common magnetic hard disk drive form factor used in laptops?

  • 3.5 inch
  • 5.25 inch
  • 1.8 inch
  • 2.5 inch
A

2.5 inch

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5
Q

Which of the following are SSD form factors used in laptop computers? (Select 2 answers)

  • 1.5 inch
  • 5.25 inch
  • 1.8 inch
  • 2.5 inch
  • 1.3 inch
A
  • 1.8 inch

- 2.5 inch

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6
Q

Due to size restrictions and the compact nature of laptop devices, this type of storage media has become less commonly found on new laptops.

  • Flash drives
  • Optical drives
  • Solid-state drives
  • Magnetic drives
A

Optical drives

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7
Q

Examples of mass storage device interfaces include: (Select all that apply)

  • UTP
  • SATA
  • HDMI
  • IDE/PATA
  • STP
  • SCSI
A

SCSI
IDE/PATA
UTP

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8
Q

When installing two PATA drives on a single cable, each drive must be configured with a jumper to designate it as either a primary drive (a.k.a. “master”) or a secondary drive (a.k.a. “slave”). The “cable select” jumper setting option automatically configures the drive as master or slave according to its position on a cable.

True or False?

A

True

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9
Q

SCSI ID:

  • Identifies SCSI devices on a network
  • Identifies device embedded in the physical device on a SCSI chain
  • Serves as an interchangeable term for LUN
  • Identifies physical device on a SCSI chain
A

Identifies physical device on a SCSI chain

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10
Q

Which of the following is a way to identify logical partitions on a SCSI hard drive?

  • Host ID
  • OUI
  • SCSI ID
  • LUN
A

LUN

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11
Q

Which of the following are types of storage media that can be read, but not written to? (Select all that apply)

  • BD-R
  • CD-ROM
  • DVD-RW
  • BD-RE
  • DVD-ROM
  • CD-RW
A

CD-ROM

DVD-ROM

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12
Q

Which of the following is an example of Write Once, Read Many (WORM) storage media?

  • BD-R
  • Flash drive
  • CD-RW
  • Magnetic tape
  • CD-ROM
A

BD-R

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13
Q

What are the storage limitations of a standard CD-ROM media format? (Select 2 answers)

  • Up to 737 MB of data storage capacity
  • Up to 80 minutes of uncompressed audio
  • Up to 829 MB of data storage capacity
  • Up to 90 minutes of uncompressed audio
  • Up to 912 MB of data storage capacity
  • Up to 99 minutes of uncompressed audio
A
  • Up to 737 MB of data storage capacity

- Up to 80 minutes of uncompressed audio

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14
Q

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

  • 4.7 GB of data
  • 7.8 GB of data
  • 8.5 GB of data
  • 9.4 GB of data
A

4.7 GB of data

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15
Q

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

  • 7.8 GB of data
  • 8.5 GB of data
  • 9.4 GB of data
  • 17.08 GB of data
A

8.5 GB of data

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16
Q

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

  • 15 GB of data
  • 25 GB of data
  • 30 GB of data
  • 50 GB of data
A

25 GB of data

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17
Q

A standard-size dual-layer Blu-ray disc can store up to:

  • 15 GB of data
  • 25 GB of data
  • 30 GB of data
  • 50 GB of data
A

50 GB of data

18
Q

Which of the following statements are true? (Select 2 answers)

  • BD-R discs can be written to once
  • BD-R discs can be erased and written to multiple times
  • BD-RE discs can be written to once
  • BD-RE discs can be erased and written to multiple times
A

BD-R discs can be written to once

BD-RE discs can be erased and written to multiple times

19
Q

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

  • 8.544 GB of data
  • 4.7 GB of data
  • 7.8 GB of data
  • 15.6 GB of data
A

7.8 GB of data

20
Q

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

  • 8.544 GB
  • 4.7 GB
  • 7.8 GB
  • 15.6 GB
A

15.6 GB

21
Q

Which of the following are examples of SSD host interfaces? (Select 3 answers)

  • MAPI
  • M.2
  • PCIe
  • GDI
  • SATA
  • ACPI
A
  • M.2
  • PCIe
  • SATA
22
Q

An M.2 key is a notch on the pin contact surface of an M.2 expansion card which prevents insertion into an incompatible socket. The M.2 key IDs include 12 available letters from A to M. These letters correspond to the locations of notched pins on the card’s contact surface and designate which interface the card is compatible with. M.2 expansion cards that are used for solid-state storage applications have key IDs of B and M. The B-keyed M.2 SSD cards use 2 PCIe lanes (lower read/write speed), while M-keyed M.2 SSDs use 4 PCIe lanes (higher read/write speed). M.2 SSDs with 2 notches on the card’s pin contact surface (B + M) increase the card’s compatibility as they can be installed in either of the two types of expansion slots on the motherboard.

True or False?

A

True

23
Q

Which of the following is a logical device interface used to access non-volatile memory storage devices attached via a PCIe?

  • GDI
  • NVMe
  • SLI
  • MAPI
A

NVMe

24
Q

What is the most common form factor for SSD SATA drives?

  • 1.8
  • 2.5
  • 3.5
  • 5.25
A

2.5

25
Q

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

  • Revolutions per second
  • Iterations per minute
  • Revolutions per minute
  • Iterations per second
A

Revolutions per minute

26
Q

Which of the following is the maximum rpm value available in modern HDDs?

  • 10,000 rpm
  • 15,000 rpm
  • 25,000 rpm
  • 30,000 rpm
A

15,000 rpm

27
Q

Which of the following is the size of a magnetic drive form factor for desktops?

  • 1.8 inch
  • 2.5 inch
  • 3.5 inch
  • 5.25 inch
A

3.5 inch

28
Q

A data storage solution that integrates HDD and flash memory into a single device is known as a(n): (Select 2 answers)

  • Hybrid drive
  • CompactFlash
  • M.2 drive
  • SSHD
  • Hardware RAID
A

hybrid drive

SSHD

29
Q

Examples of flash memory card formats include: (Select all that apply)

  • SD
  • CompactFlash
  • Micro-SD
  • SSHD
  • Mini-SD
  • xD
A
  • SD
  • CompactFlash
  • Micro-SD
  • Mini-SD
  • xD
30
Q

Which of the following is a proprietary flash memory card format used mainly in older digital cameras?

  • xD
  • SD
  • SSD
  • Mini-SD
  • Micro-SD
A

xD

31
Q

Which one of the following is a data storage solution that combines multiple disk drive components into a single logical unit to increase volume size, performance, or reliability?

  • Load balancing
  • Serial Attached SCSI (SAS)
  • Aggregation switching
  • Redundant Array of Independent Disks (RAID)
A

Redundant Array of Independent Disks (RAID)

32
Q

Which of the following RAID levels does not offer fault tolerance?

  • RAID 5
  • Disk duplexing
  • RAID 0
  • Disk mirroring
  • RAID 1
A

RAID 0

33
Q

Hardware RAID Level 1: (Select 3 answers)

  • Requires at least 2 drives to implement
  • Is also known as disk striping
  • Offers improved performance in comparison to RAID 0
  • 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
A
  • Requires at least 2 drives to implement
  • Offers improved performance in comparison to RAID 0
  • 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)
34
Q

Hardware RAID Level 5: (Select 2 answers)

  • Requires at least 2 drives to implement
  • Continues to operate in case of failure of more than 1 drive
  • 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)
  • Requires at least 4 drives to implement
A
  • 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)
35
Q

Examples of nested RAID levels include: (Select all that apply)

  • RAID 0
  • RAID 1
  • RAID 1+0
  • RAID 5
  • RAID 10
A

RAID 1+0

RAID 10

36
Q

Hardware RAID Level 10 requires a minimum of:

  • 2 drives
  • 3 drives
  • 4 drives
  • 5 drives
A

4

37
Q

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

  • RAID 0+1
  • RAID 1
  • RAID 5
  • RAID 1+0
A

RAID 1+0

38
Q

The term “Hot swapping” refers to the ability to replace computer system components without interrupting system operations.

True or False?

A

True

39
Q

Which of the following is an example of a hot-swappable drive? (Select all that apply)

  • USB drive
  • PATA drive
  • IDE drive
  • SATA drive
  • eSATA drive
A
  • USB drive
  • SATA drive
  • eSATA drive
40
Q

A Disk Defragmenter is a software tool used to rearrange data on magnetic drives in order to improve system performance. Defragmentation results in faster read/write operations of a magnetic hard drive’s read/write heads because defragmentation consolidates data into the smallest contiguous regions. This means that the heads can access data sequentially without seeking data fragments in different areas of a disk.

True or False?

A

True

41
Q

An actuator arm assembly failure manifested by loud clicking noise emitted from the inside of the computer case is a problem symptom that should prompt for:

  • Data backup and hard drive replacement
  • Replacement of a faulty cooling fan
  • Central Processing Unit (CPU) replacement
  • Data backup and replacement of a faulty primary storage module
  • Power Supply Unit (PSU) replacement
A

-Data backup and hard drive replacement

42
Q

Self-Monitoring, Analysis and Reporting Technology (S.M.A.R.T.) enables monitoring a system for anticipated:

  • HDD failures
  • Network interface problems
  • Video adapter failures
  • Power spikes
A

-HDD failures

CompTIA A+ 2019 (40 decks)

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