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CompTIA A+ 1101 (Core 1) (Retired) > 3.3 - Given a scenario, select & install storage devices > Flashcards

3.3 - Given a scenario, select & install storage devices Flashcards

1
Q

4 HDD RPM speeds?

3.3 Given a scenario, select & install storage devices: HDD - Speeds

A
  • 5,400 RPM
  • 7,200 RPM
  • 10,000 RPM
  • 15,000 RPM
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2
Q

Downside to higher RPM HDDs?

3.3 Given a scenario, select & install storage devices: HDD - Speeds

A

They consume more power & create more heat & noise

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3
Q

What HDD form factor is used on dekstops?

& sometimes SSDs

3.3 Given a scenario, select & install storage devices: HDD - Form Factors

A

3.5”

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4
Q

What HDD form factor is used on laptops?

& sometimes SSDs

3.3 Given a scenario, select & install storage devices: HDD - Form Factors

A

2.5”

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5
Q

What communication interfaces do SSDs use?

(standards)

3.3 Given a scenario, select & install storage devices: SSD - Communication Interfaces

A
  • NVMe
  • SATA
  • PCIe
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6
Q

Downside to SATA SSDs?

3.3 Given a scenario, select & install storage devices: SSD - Communication Interfaces

A

SSDs exceed SATA speeds which may limit SSD’s performance

this isnt a problem for NVMe & maybe PCIe

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7
Q

Which SSD communication interface is fastest?

3.3 Given a scenario, select & install storage devices: SSD - Communication Interfaces

A

NVMe

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8
Q

Identify the type of M.2:

3.3 Given a scenario, select & install storage devices: SSD - Communication Interfaces

A

M.2 SATA

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9
Q

Identify the type of M.2:

3.3 Given a scenario, select & install storage devices: SSD - Communication Interfaces

A

M.2 NVMe

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10
Q

Identify storage drive form factor:

3.3 Given a scenario, select & install storage devices: SSD - Form factors

A

M.2

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11
Q

Identify storage drive form factor:

3.3 Given a scenario, select & install storage devices: SSD - Form factors

A

mSATA

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12
Q

What specification or form factor does M.2 supersede?

3.3 Given a scenario, select & install storage devices: SSD - Form factors

A

mSATA

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13
Q

Small version of SATA?

3.3 Given a scenario, select & install storage devices: SSD - Form factors

A

mSATA

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14
Q

Meaning of NVMe?

3.3 Given a scenario, select & install storage devices

A

Non-Volatile Memory express

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15
Q

Meaning of PCIe?

3.3 Given a scenario, select & install storage devices

A

Peripheral Component Interconnect express

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16
Q

Meaning of RAID?

3.3 Given a scenario, select & install storage devices

A

Redundant Array of Independent/Inexpensive Disks

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17
Q

What is RAID?

3.3 Given a scenario, select & install storage devices: Drive configurations - RAID 0, 1, 5, 10

A

Technology that uses multiple hard drives for redundancy

It can be implemented via software, built-in motherboard support, RAID adapter cards, & external devices like NAS with RAID capabilities

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18
Q

How to enable/disable RAID on motherboards with built-in RAID controllers?

3.3 Given a scenario, select & install storage devices: Drive configurations - RAID 0, 1, 5, 10

A

Via BIOS/UEFI settings

19
Q

Why isnt RAID considered a backup system?

3.3 Given a scenario, select & install storage devices: Drive configurations - RAID 0, 1, 5, 10

A

It doesnt preserve previous versions of data

It operates in real-time with the data on storage drives

any changes made on the RAID array will immediately affect the data stored on it, just as if you were working with the original files on your actual device

20
Q

What does fault tolerant mean in RAID?

3.3 Given a scenario, select & install storage devices: Drive configurations - RAID 0, 1, 5, 10

A

Drives can continue to function even if problems occur with one of the drives

21
Q

Which RAID levels are fault tolerant?

3.3 Given a scenario, select & install storage devices: Drive configurations - RAID

A

RAID 1, 5, 10

22
Q

Which RAID levels are NOT fault tolerant?

3.3 Given a scenario, select & install storage devices: Drive configurations - RAID 0, 1, 5, 10

23
Q

Min. number of disks needed for RAID 0?

3.3 Given a scenario, select & install storage devices: Drive configurations - RAID 0, 1, 5, 10

24
Q

Min. number of disks needed for RAID 1?

3.3 Given a scenario, select & install storage devices: Drive configurations - RAID 0, 1, 5, 10

25
Q

Min. number of disks needed for RAID 5?

3.3 Given a scenario, select & install storage devices: Drive configurations - RAID 0, 1, 5, 10

26
Q

Min. number of disks needed for RAID 10?

3.3 Given a scenario, select & install storage devices: Drive configurations - RAID 0, 1, 5, 10

27
Q

What does RAID 0 do?

3.3 Given a scenario, select & install storage devices: Drive configurations - RAID 0, 1, 5, 10

A

splits data over multiple drives without data redundancy

If any drive fails, all data is lost

28
Q

What does RAID 1 do?

3.3 Given a scenario, select & install storage devices: Drive configurations - RAID 0, 1, 5, 10

A

Mirrors data across multiple drives

Losing 1 disk wont affect data since theres a duplicate.

29
Q

Tradeoff with RAID 1?

3.3 Given a scenario, select & install storage devices: Drive configurations - RAID 0, 1, 5, 10

A

Provides safety at the cost of storage space

i.e. you need 2 2TB drives to store 2TB of data

30
Q

What does RAID 5 do?

3.3 Given a scenario, select & install storage devices: Drive configurations - RAID 0, 1, 5, 10

A

Splits data & parity data across multiple drives

It requires atleast 3 disks because RAID 5 effectively uses 1 drive’s worth of space for parity (but its distributed across multiple drives)

31
Q

What is parity data in RAID?

3.3 Given a scenario, select & install storage devices: Drive configurations - RAID 0, 1, 5, 10

A

Error-checking data used to recover data if a drive fails

32
Q

What does RAID 10 combine?

3.3 Given a scenario, select & install storage devices: Drive configurations - RAID 0, 1, 5, 10

A

RAID 1 & 0

33
Q

What does stripe mean in RAID?

3.3 Given a scenario, select & install storage devices: Drive configurations - RAID 0, 1, 5, 10

A

Dividing data into blocks & spreading them across multiple drives

(for faster access & improved performance)

34
Q

What does RAID 10 do?

3.3 Given a scenario, select & install storage devices: Drive configurations - RAID 0, 1, 5, 10

A

Mirrors striped-drive pairs & stripes the mirrored-drive pairs

35
Q

Advantage of RAID 10?

3.3 Given a scenario, select & install storage devices: Drive configurations - RAID 0, 1, 5, 10

A

Provides better speed & redundancy

36
Q

What are flash drives & memory cards limited to?

3.3 Given a scenario, select & install storage devices: Removable storage

A

The number of write/erase cycles

when the limit is reached, you can still read stored data but you can’t modify or update it

37
Q

What port do flash drives connect to?

3.3 Given a scenario, select & install storage devices: Removable storage - Flash drives

38
Q

What port do memory cards connect to?

3.3 Given a scenario, select & install storage devices: Removable storage - Flash drives

A

Memory card readers

39
Q

3 memory card form factors?

3.3 Given a scenario, select & install storage devices: Removable storage - Memory cards

A
  • Standard SD
  • MiniSD
  • MicroSD
40
Q

What memory card do most phones use for more storage?

3.3 Given a scenario, select & install storage devices: Removable storage - Memory cards

41
Q

How do optical drives read data on optical discs?

3.3 Given a scenario, select & install storage devices: Removable storage - Optical drives

A

Using lasers

42
Q

3 types of optical discs?

A
  • CD
  • DVD
  • BD (Blu-Ray Disk)
43
Q

What types are CDs, DVDs, & BDs available in?

A
  • Read-only (R)
  • Write-once (W)
  • Rewritable (RW)

CompTIA A+ 1101 (Core 1) (Retired) (23 decks)

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