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CompTIA+ > Practice Test 12 > Flashcards

Practice Test 12 Flashcards

1
Q

What is the maximum capacity and number of contact pins of a DDR3 memory module

A

16Gb and 240 pins

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2
Q

What is the maximum capacity and number of contact pins of a DDR4 memory module

A

64Gb and 288 pins

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3
Q

What is the maximum capacity and number of contact pins of a DDR5 memory module

A

64Gb and 288 pins

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4
Q

Certain types of RAM take advantage of an additional bit in order to detect whether a data error has occurred. What is that bit called?

A

Parity bit

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5
Q

What is characteristic of ECC type RAM?

A

ECC RAM can !detect and correct! errors but is usually more expensive and performers slower

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6
Q

What are two characteristics of desktop RAM?

A

Dynamic, Non-ECC Memory

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7
Q

What do the color-coded memory slots on the motherboard indicate?

A

They indicate that a given motherboard provides support for the multi-channel memory architecture

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8
Q

Taking advantage of the performance benefits offered by the multi-channel memory architecture requires what?

A

Memory modules of matching types, Memory modules of matching speeds, Memory modules of the same capacity and Installing modules in appropriate memory slots (slots of matching color) on the motherboard

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9
Q

Platters of a magnetic hard drive spin at a rate measured in what?

A

Revolutions per minute

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10
Q

What is the maximum rpm value available in modern HDDs?

A

15000 rpm

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11
Q

What is an HDD form factor length for laptop computers?

A

2.5”s

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12
Q

What is an HDD form factor length for desktop computers?

A

3.5”

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13
Q

What are the storage media device interfaces for SSDs?

A

NVMe, SATA and PCIe

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14
Q

What is PCIe?

A

PCIe is a high-speed replacement of PCI and other standards

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15
Q

What are two SDD Form Factors?

A

M.2 and mSATA

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16
Q

What is an older, portable device SSD form factor superseded by M.2

A

mSATA

17
Q

What is RAID 0?

A

RAID 0 is also known as disk striping, it’s when half the data is on disk X and the other half is on disk Y

18
Q

What is RAID Level 1?

A

RAID 1 is also known as disk mirroring

19
Q

What is RAID Level 5?

A

RAID 5 is similar to raid zero in the sense that the different disk carry data over each other but to be implemented it needs at least 3 disks as the algorithm uses logic gates to summaries and recover data in the event of a disk failure

20
Q

What is an example of a nested RAID Level

A

RAID 1+0 / RAID 10

21
Q

How many drives does RAID 10 require

A

4

CompTIA+ (18 decks)

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