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Comptia A+ 1101 Core 1 > Storage Devices > Flashcards

Storage Devices Flashcards

1
Q

Which of the following statements refer to the characteristic features of 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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2
Q

Which of the answers listed below 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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3
Q

Which of the following answers refer(s) to internal data storage device type(s) used in laptop computers? (Select all that apply)

Flash drives
USB drives
Magnetic disks
SSDs

A

Magnetic disks
SSDs

magnetic disk is a storage device that uses a magnetization process to write, rewrite and access data.

An SSD, or solid-state drive, is a type of storage device used in computers. This non-volatile storage media stores persistent data on solid-state flash memory. SSDs replace traditional hard disk drives (HDDs) in computers and perform the same basic functions as a hard drive.

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4
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

SCSI (Small Computer Systems Interface) is a smart bus, controlled with a microprocessor, that allows you to add up to 15 peripheral devices to the computer. These devices can include hard drives, scanners, printers, and other peripherals.

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5
Q

Which of the answers listed below refers to a method for identifying logical partitions on a SCSI drive?

Host ID
OUI
SCSI ID
LUN

A

LUN

A logical unit number (LUN) is a unique identifier for designating an individual or collection of physical or virtual storage devices that execute input/output (I/O) commands with a host computer, as defined by the Small System Computer Interface (SCSI) standard.

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6
Q

Which of the following requires termination?

SCSI chain
ATA
SATA
PATA

A

SCSI Chain

A SCSI chain is a term that describes the devices connected to one SCSI interface through one cable. Hardware terms, SCSI.

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7
Q

What is the maximum allowable number of devices that can be attached to a parallel SCSI bus?

4 devices
8 devices
16 devices
32 devices

A

16 devices

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8
Q

Which of the answers listed below refer to the characteristic features of SAS? (Select 3 answers)

Serial interface
Identifies devices on a SCSI chain via SCSI IDs and LUNs
Requires bus termination
Point-to-point connection
Parallel interface
Capability to attach multiple devices on a single bus via daisy chaining
Does not require bus termination

A

Serial interface
Point-to-point connection
Does not require bus termination

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9
Q

Which of the following answers list(s) example(s) of hot-swappable drives? (Select all that apply)

USB drive
PATA drive
IDE drive
SATA drive
eSATA drive

A

USB Drive
SATA Drive
eSATA Drive

Serial Advanced Technology Attachment, also known as Serial ATA or SATA, enables mass storage devices, such as hard drives and optical drives, to communicate with the motherboard using a high-speed serial cable over two pairs of conductors.

eSATA is a SATA connector accessible from outside the computer, to provide a signal (but not power) connection for external storage devices. eSATAp combines the functionality of an eSATA and a USB port, and a source of power in a single connector. eSATAp can supply power at 5 V and 12 V.

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10
Q

Which of the answers listed below refers to a dedicated expansion card used for attaching external storage devices?

SATA card
IDE card
eSATA card
PATA card
EIDE card

A

eSATA card

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11
Q

What is the maximum number of devices that can be attached to a PC through a single PATA cable?

1
2
3
4

A

2

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12
Q

When installing two PATA drives on a single cable, each drive must be configured with a jumper to designate it as a primary drive (Device 0) or secondary drive (Device 1). The “cable select” jumper setting option automatically configures the drive as Device 0 or Device 1 according to its position on the cable.

True
False

A

True

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13
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

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14
Q

Which of the following answers refers to the maximum rpm value available in modern HDDs?

10000 rpm
15000 rpm
25000 rpm
30000 rpm

A

15000 rpm

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15
Q

Which of the answers listed below refers to an HDD form factor for laptop computers?

1.8 inch
2.5 inch
3.5 inch
5.25 inch

A

2.5 inch

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16
Q

Which of the following answers refers to magnetic drive form factor for desktops?

1.8 inch
2.5 inch
3.5 inch
5.25 inch

A

3.5 inch

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17
Q

Which of the answers listed below refer to storage media device interfaces for SSDs? (Select 3 answers)

NVMe
PCI
SATA
IDE
PCIe

A

NVMe
SATA
PCIe

18
Q

A logical device interface used for accessing non-volatile memory storage devices attached via PCIe is known as:

GDI
NVMe
SLI
MAPI

A

NVMe

19
Q

Which of the following answers refer to SSD form factors? (Select 2 answers)

PCIe
M.2
mSATA
NVMe
SATA

A

M.2
mSATA

20
Q

An M.2 key is a notch on the pin contact surface of an M.2 expansion card which prevents its insertion to an incompatible socket. The 12 available M.2 key IDs are letters from A to M which indicate the location of notched pins on the card’s contact surface and designate the type of interface a given card is compatible with. M.2 expansion cards used for solid-state storage applications have key IDs of B and M. The B-keyed M.2 SSD cards take advantage of 2 lanes of a PCIe link (lower read/write speed), the 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 any of the two types of expansion slots on the motherboard.

True
False

A

True

21
Q

Which of the answers listed below refers to an older, portable device SSD form factor superseded by M.2?

SATA
NVMe
mSATA
PCIe

A

mSATA

22
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

23
Q

Hardware RAID Level 0: (Select 3 answers)

Is also known as disk striping
Decreases reliability (failure of any disk in the array destroys the entire array)
Is also referred to as disk mirroring
Offers less volume capacity in comparison to RAID 1
Requires at least 3 drives to implement
Is suitable for systems where performance has higher priority than fault tolerance

A

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

24
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
Is also referred to as disk mirroring
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)

A

Requires at least 2 drives to implement
Is also referred to as disk mirroring
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

25
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)

26
Q

Which of the answers listed below refer(s) to (a) nested RAID level(s)? (Select all that apply)

RAID 0
RAID 1
RAID 1+0
RAID 5
RAID 10

A

RAID 1+0
RAID 10

27
Q

RADIHardware RAID Level 10 requires a minimum of:

2 drives
3 drives
4 drives
5 drives

A

4 Drives

28
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

29
Q

Which of the following answers refer to a popular portable storage device utilizing flash memory? (Select 3 answers)

Thumb drive
USB drive
eSATA drive
Solid-State Drive (SSD)
Flash drive

A

Thumb drive
USB drive
Flash drive

30
Q

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

SD
CompactFlash
microSD
SSHD
miniSD
xD

A

SD
CompactFlash
microSD
miniSD
xD

31
Q

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

xD
SD
SSD
miniSD
microSD

A

xD

32
Q

Which of the following is a file system designed for optical media?

CDFS
FAT32
NTFS
exFAT

A

CDFS

Cdfs is a read-only file system that addresses various issues such as accessing data on disk, interacting with the cache manager, and handling various I/O operations such as opening files, performing reads on a file, retrieving information on a file, and performing various control operations on the file system.

33
Q

Which of the answers listed below refer to examples of optical disc drives? (Select 3 answers)

CD-ROM drive
Floppy disk drive
DVD-ROM drive
Microdrive
BD-ROM drive
Magnetic tape drive

A

CD-ROm DRIVE
DVD-ROM drive
BD-ROM drive

34
Q

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

Flash drives
Optical drives
Solid-state drives
Magnetic drives

A

Optical Drives

35
Q

Adding an eSATA device to a PC can be done either by attaching the device cable directly to the motherboard’s integrated I/O panel, connecting it via eSATA port on a modular bracket mounted on the back of the PC case, or attaching it directly to a dedicated slot on the motherboard.

True
False

A

False

36
Q

Which of the following dedicated expansion slots/ports on the PC motherboard enable(s) connecting an M.2 device? (Select all that apply)

B key slot
SATA port
M key slot
USB slot
PCIe slot
B+M key slot

A

B key slot
M key slot
B+M key slot

37
Q

Which state of the HDD LED light typically indicates the drive’s normal operation?

No light
Intermittent flashing
Solid light
Continuous flashing

A

Intermittent flashing

38
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

39
Q

Restoring a RAID array after physical failure of one of the drives typically requires a very simple fix, which is the replacement of a bad drive. This solution will work for most of the RAID configurations except:

RAID 0
RAID 1
RAID 5
RAID 1+0

A

Raid 0

40
Q

Which of the symptoms listed below might be causing extended read/write times on a storage drive?

Depleted storage space
Insufficient amount of RAM
Disk fragmentation
Loose cable connections
Physical hardware faults
All of the above

A

All of the above

41
Q

Which of the following metrics might be of help in diagnosing the declining performance of a storage drive?

PPM
I/O
RPM
IOPS

A

IOPS

IOPS (input/output operations per second) is the standard unit of measurement for the maximum number of reads and writes to non-contiguous storage locations.

42
Q

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

HDD/SSD failures
Network interface problems
Video adapter failures
Power spikes

A

Comptia A+ 1101 Core 1 (24 decks)

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