Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Comptia A+ Core 1 > 3.2, 3.3 Hardware - sections 5, 7 > Flashcards

3.2, 3.3 Hardware - sections 5, 7 Flashcards

1
Q

What is Random Access Memory

A

Random Access Memory (RAM): Used to load applications and files into a non-persistent and fast storage area. One of the best ways to improve your computer system’s performance. Also called system memory

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the cpu/processor memory Cache

A

Memory that is inside the processor itself small but very high-speed memory.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is Storage

A

Mass storage deviec that holds more data but is slower than a cache. Permanent storage area. E.g hard drives, USB drives, CD-ROMS, and DVDs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What does RAM Disk Cache do

A

The memory cache for RAM. Pulls the files from the disc into memory and replaces the old file.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Single Bank Memory

A

Seen on most modern motherboards. Where you can put any size of module in any slot

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Paired Bank Memory

A

Seen mostly on old motherboards where they required installation of banks in pairs.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Different versions of Dual Data Rate (DDR)

A

This type of memory is used in most modern systems, DDR3, DDR4, DDR5.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Throughput is calculated based on what

A

Bus speed and the width of the data bus.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Types of Memory or RAM

A

Dynamic RAM (DRAM), Static RAM (SRAM), Synchronous DRAM (SDRAM)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is Dynamic RAM (DRAM)

A

Oldest type of memory that requires frequent refresh. DRAM storage cell is dynamic meaning it needs to be refreshed often

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is Static RAM (SRAM)

A

Solved the issue of the constant refresh, but was expensive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is Synchronous DRAM (SDRAM)

A

First memory module that operates at the same speed as the motherboard bus.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Types of SDRAM

A

PC66 (66 MHz bus), PC133 (133 MHz bus), PC266 (266 MHz bus)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Types of DDR SDRAM

A

DDR SDRAM, DDR2 SDRAM, DDR3 SDRAM, DDR4 SDRAM, DDR SDRAM

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is DDR SDRAM

A

Double Data Rate Synchronous Dynamic Random-Access Memory (DDR SDRAM): Doubles the transfer speed of SRAM module (184-pin connector)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is DDR2 SDRAM

A

Double Data Rate 2 Synchronous Dynamic Random-Access Memory (DDR2 SDRAM): Higher latency and has faster access to the external bus (240-pin connector)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

DDR3 SDRAM

A

Double Data Rate 3 Synchronous Dynamic Random-Access Memory (DDR3 SDRAM): Runs at a lower voltage and at higher speed than DDR2 (240 keyed pin connector).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

DDR4 & DDR5

A

DDR4 has 12.8 to 25.6 GB/s of throughput 32 GB per module. PC4-16000 (DDR4 module) 16000 MB/s or 16 GB/s

DDR5 has 38.4 to 51.2 GB/s of throughput 128 GB per module.PC5-42000 (DDR5 module) 42000 MB/s or 42 GB/s

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is SODIMM

A

Small Outline Dual In-line Memory Module (SODIMM): Still classified as DDR3, DDR4, or DDR5. SODIMM PC4-16000 (DDR4 SODIMM module) 16000 MB/s or 16 GB/s. Commonly seen in laptops.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is Multi-Channel Memory on a motherboard

A

Uses two different memory modules to increase the performance and throughput. Multi-Channel Memory gives way to Interleaving which gives you system increased performance. Multiple modules give faster speeds and add memory for storage.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Channel Types

A

Single, Dual, Triple, and Quad

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Single Channel

A

Single Channel: Uses one memory module on one bus (64-bit data bus).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Dual-Channel

A

Dual-Channel: Requires two memory modules and two memory slots on the motherboard (128-bit data bus).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Triple-Channel

A

Triple-Channel: Uses three memory modules and three memory slots (192-bit data bus).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Quad-Channel

A

Quad-Channel: Uses four memory modules and four memory slots (256-bit data bus).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

What is ECC/ECC memory

A

Error Correcting Code (ECC): Detects and corrects an error.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What is Non-parity memory

A

Non-Parity Memory: Standard memory that does not check for errors and allows data to be put in or taken out. This is what most memory is

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

What is Parity Memory

A

Parity Memory: Performs basic error checking and ensures the memory contents are reliable. Seen a lot in high-end builds and servers.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

What is a Parity Check

A

Parity Check: is a basic calculation to verify if data is good or not. If the data is good it uses it and if the data is not good an error will occur.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Buffered/Registered Memory

A

Additional hardware (register) between memory and CPU. The system requires buffing or ride.The system requires butting or registering the data to reduce.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

What is Virtual Memory/Page File

A

Space on a hard drive that is allocated by the OS and pretends to be memory.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

The Two types of Virtual Memory

A

Page File (Windows), Swap Space (Linux Unix/Mac). A page file or a swap space is hidden on a storage device and pretends to be system memory

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

What is Hard Disk Drive (HDD)

A

Hard Disk Drive (HDD): are a form of mass storage device.

34
Q

What is Mass Storage Device

A

Mass Storage Device: Non-volatile storage device that holds the data when the system is powered down (GB or TB).

35
Q

Two types of Mass Storage

A

Internal Device, External Device

36
Q

Internal device/Internal mass storage

A

Internal Device: Device that is placed inside the computer case or tower. Includes, hard disk drives, solid state devices, optical drives

37
Q

External device/External mass storage

A

External Device: Device that is placed outside the computer case or tower and connected to an external port. Includes external USB hard drive, or an eSATA drive.

38
Q

Mass Storage device Sizes

A

2.5 inch drive, 3.5 inch drive, 5.25 inch drive

39
Q

2.5 inch drive mass storage device

A

2.5 inch drive: Reserved for internal HDDS and SSDs

40
Q

3.5 inch drive mass storage device

A

3.5 inch drive: Reserved for internal HDDs and SSDs

41
Q

5.25 inch drive mass storage device

A

5.25 inch drive: Reserved for optical drives, backup tape drives, and floppy disc drives.You can use an adapter to put a smaller device into a larger bay.

42
Q

What are the parts of a Hard Disk Drive (HDD)

A

Platter, Spindle, Read/Write Head, Actuator

43
Q

How does a HDD seek and retrieve data

A

Seeking or Retrieving Data: Movement of the actuator an the read/write head to read the data. Speed that is measured in revolutions per minute (RPM) gives better drive performance.

44
Q
A
45
Q

HDD speeds

A

5400 RPM(slowest, workstations and PCs), 7200 RPM(Faster performance, modern computers), 10,000 RPM(high-performance drive, gaming PCs), 15,000 RPM(Highest RPM most expensive, not commonly seen)

46
Q

What is a Buffer size/HDD Buffer size

A

Buffer Size: Internal buffer or cache on a hard disc drive (8 MB to 256 MB). The larger the buffer the better performance.

47
Q

Connector cables for HDD’s

A

7-pin(Data Connector that is a L-shaped cable), 15-pin(Power Connector that is a L-shaped connector), Small Computer System Interface (SCSI) Supports either 7 0r 15 devices in a daisy chain).

48
Q

What is a Solid State Drive(SSD)

A

Solid State Drive (SSD): Uses flash memory technology to implement persistent mass storage.

49
Q

Types or form factors of SSD

A

2.5(Large/medium laptop or small desktop), 1.8(inside small laptops), M2(small sleek memory chip used more often that 1.8)

50
Q

Types of SSD Cable Connectors

A

SATA, mSATA, NVMe

51
Q

SATA SSD Connector

A

Old, seen on 2.5’s, and 1.8 SSDs

52
Q

mSATA SSD Connector

A

mSATA: Allows the SSD to be used as an adapter card that can be plugged into a combined data and power port on the motherboard.

53
Q

Non-volatile Memory Express(NVMe) SSD Connector

A

Non-volatile Memory Express (NVMe): A communication protocol used with the M2 form factor to plug directly into the motherboard.

54
Q

What is RAID

A

Redundant Array of Independent Disks (RAID): Combination of multiple physical hard disks that is recognized by the operating system. Provide redundancy and high-availability.

55
Q

Raid Types

A

RAID 0, 1, 5, 6, 10

56
Q

Raid 0

A

RAID 0: Striping. And is also great for speed but provides no data redundancy. And has no loss of space on the disks. 2 disks

57
Q

RAID 1

A

RAID 1: Mirroring and Redundancy. Provides full redundancy, but loss of space on the disks. 2 disks

58
Q

RAID 5

A

RAID 5: Parity. Can lose one disk and still operate. Most commonly seen in server rooms, and used by small businesses. 3 or more disks, but minimum of 3 disks

59
Q

RAID 6

A

RAID 6: Striping with Dual Parity. Can lose two disk and still operate. 4 disks

60
Q

RAID 10

A

RAID 10: Mirror and Striping. Good for speed and redundancy, but using 4 disks.

61
Q

Raid configuration categories

A

Failure Resistant, Fault Tolerant, Disaster Tolerant

62
Q

Failure Resistant Raids

A

Failure Resistant: Protection against the loss of erased data ( RAID 1/RAID 5).

63
Q

Fault Tolerant Raids

A

Fault Tolerant: Raid can function even a component fails (RAID 1/RAID 5/RAID 6).

64
Q

Disaster Tolerant Raids

A

Disaster Tolerant: RAID with two independent zones with full data access (RAID 10).

65
Q

What is Removable Storage

A

Removeable Storage: Basically external storage. Any storage device that can be moved from computer to computer without have to open up the case to remove the storage device.

66
Q

What are Hot-Swappable storage drives

A

Hot-Swappable: Capable of being removed or replaced without disruption or powering off the device. Hot-swappable drives are safe to remove without losing the data. This feature gives us the ability to add/remove additional storage.

67
Q

Types of Hot-Swappable storage drive connectors

A

USB, Thunderbolt, eSATA

68
Q

What is Advanced Host Controller Interface(AHCI)

A

Advanced Host Controller Interface (AHCI): Technical standard developed by intel that allows hot-swappable capability with SATA devices.

69
Q

What is a Drive Enclosure

A

Drive Enclosure: Takes an internal hard drive and put it in an enclosure.

70
Q

What is a Secure Digital Storage Card

A

Secure Digital (SD): The original secure digital cards had a maximum capacity of 2 GB. A storage card with only 2 GB of space

71
Q

Types of SD(Secure Digital) Storage Cards

A

SD, MiniSD, MicoSD, CompactFlash, Memory Stick

72
Q

What is a Tape Storage Drive

A

Tape Drive: a tape drive uses a magnetic tape and is placed into a reader.

73
Q

Types of Tape Drives

A

Standard Type(stores 140 GB), LTO Ultrium Tape(3 TB data)

74
Q

Types of Optical Drives

A

Compact Disk(CD), Digital Versatile Disc(DVD), BD(Blu-ray Disc), CD-ROM, DVD-ROM, and BD-ROM are all read only disks

75
Q

What is a CD

A

CD (Compact Disc): Oldest form of optical drive that stores 74 to 80 minutes of music (650-700 MB).

76
Q

What is a DVD

A

DVD (Digital Versatile Disc): Stores 4.7 GB or 8.4 GB (DL). Could store a whole movie

77
Q

What is Blu-ray

A

BD (Blu-ray Disc): Stores 25 GB or 50 GB (DL). Again could store a whole movie.

78
Q

Different Versions of Optical Drives

A

Read-only(ROM), Write-once(R), Write-many/Erasable(RW/RAM/RE)

79
Q

Read-only(ROM)

A

Read-only(ROM): Version of optical drives that can only read, e.g, CD, DVD, BD

80
Q

Write-once(R)

A

Write-once(R): Version of optical drives that allows writing that cannot be erased, e.g, CD-R, DVD-R, DV+R, BD-R

81
Q

Write-many/Erasable (RW/RAM/RE)

A

Write-many/Erasable(RW/RAM/RE): Version of optical drives that allows to write and erase the file to creae a new one. e.g, CD-RW, DVD-RW, DVD+R, DVD-RAM, BD-RE

Comptia A+ Core 1 (12 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions