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Comptia PCS110 and 111 > Core 1 (9/20-11/14) > Flashcards

Core 1 (9/20-11/14) Flashcards

Lessons: 2-5, 8-9, 11, 15-17

1
Q

What are the motherboard form factors?

A

ATX
Micro-ATX
Mini-ITX

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2
Q

micro-ATX

A

9.6in square
4 expansion slots

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3
Q

ATX

A

12x9.6in
7 expansion slots

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4
Q

mini-ITX

A

6.7in square
1 expansion slot

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5
Q

Motherboard connectors

A

CPU socket
Memory slots
Disk drives
I/O ports
Adapter card slots
Front panel headers
USB headers
Audio headers

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6
Q

What two factors do you keep in mind to decide on a system performance?

A

Chipset
System memory

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7
Q

When do you replace a CMOS battery?

A

When the time/date resets

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8
Q

Local bus

A

The connection between core components (CPU, memory, system controllers)

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9
Q

Expansion bus

A

External connections like peripherals or adapter cards

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10
Q

System clock

A

Syncs the operations of all parts of the PC to time signals for the CPU

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11
Q

How is 3.3V PCI and 5V PCI slot differentiated?

A

Insertion has different keyed positions

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12
Q

PCIe

A

-has a dedicated link to any other component
-upgrade from regular PCI
x16
x8
x1

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13
Q

Storage bus

A

Connection to storage devices with SATA
(Legacy: IDE, EIDE, SCSI)

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14
Q

How many pins on USB connector?

A

9 pin = 2x4 pins + 1 for orientation

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15
Q

How many pins on PC power connector?

A

24 pins (black/white)

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16
Q

How many pins on power supply connector?

A

4 pins Molex

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17
Q

How many pins on fan connector to motherboard? (2 types)

A

3 pins Molex
4 pins Molex (1 is to control speed of fan)

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18
Q

What do jumpers do?

A

Drive hierarchy and completes a circuit in a motherboard

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19
Q

USB 2.0

A

480 Mbps
A/B/B-mini/B-micro
Shared bandwidth

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20
Q

USB 3.0 (blue port)

A

5 Gbps (SuperSpeed mode)
A/B/B-micro/C
Full duplex

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21
Q

USB 3.1 (blue port)

A

10 Gbps (SuperSpeed+ mode)

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22
Q

USB 3.2 (blue port)

A

20 Gbps (only in USB-C ports)

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23
Q

Thunderbolt (TB)

A

Apple workstation/laptop
Lightning bolt icon
DisplayPort and USB

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24
Q

Thunderbolt V2

A

20 Gbps
6 devices daisy-chained

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25
Q

Thunderbolt V3

A

USB-C
40 Gbps

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26
Q

Lightning

A

reversible
8 pins
Apple iPhone/iPad
Lightning bolt icon

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27
Q

RS-232

A

legacy: transmits over one wire at a time (slow)
used for external modems
25 pins
115 Kbps

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28
Q

DB-9

A

cheaper version of RS-232
9 pins
COM port

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29
Q

SATA

A

connects internal storage devices to PC
1:1
7 pins

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30
Q

eSATA

A

for external storage drives only
*cannot use for internal

31
Q

SCSI

A

legacy: uses RS-232/DB-9
only used for large servers
320 MBps

32
Q

PATA/EIDE

A

133 MBps

33
Q

Molex

A

PC power supply connector
4 pins, white

34
Q

RJ-45

A

twisted pair
Ethernet cable
LAN

35
Q

RJ-11

A

smaller than RJ-45
2-3 pins, UTP
phone cables
modem

36
Q

KVM switch

A

multiple computers controlled by one keyboard/mouse/monitor (servers)
attached to a switch

37
Q

LCDs

A

Liquid crystals changed by voltage to block light and create colors on Thin Film Transistor (TFT)
2 types: Twisted Nematic (TN), In-Plane Switching (IPS)

38
Q

TFT Twisted Nematic (TN)

A

good response times
Prone: motion blur, trails

39
Q

TFT In-Plane Switching (IPS)

A

stretched viewing angles for better colors
Prone: worse response times

40
Q

VGA

A

analog signal
15 pins
shielded coaxial wiring

41
Q

backlight

A

CCFL bulb
LCD
3 types: edge lit, backlit, color temperature

42
Q

Edge lit

A

LEDs around screen
evenly bright across screen

43
Q

Backlit

A

LEDs in an array behind TFT
dimming = power efficient
thicker panel

44
Q

Color temperature (LED)

A

uniform white light (WLED)
combo of RGB/GB LEDs

45
Q

OLED

A

used for smartphones and smaller screens
thinner, lighter, power efficient

46
Q

CRT

A

legacy
dangerous

47
Q

Resolution

A

of pixels to make an image
color depth

48
Q

“Native” resolution

A

recommended setting for resolution

49
Q

aspect ratio

A

viewable screen area (4:3, 16:9)

50
Q

refresh rate

A

speed to redraw the image (Hz)
flickering = low Hz

51
Q

frame rate

A

of times the image changes (fps)

52
Q

response rate

A

amount of time for a pixel to change color (ms)

53
Q

luminance

A

brightness of display screen (cd/m2)

54
Q

contrast ratio

A

measure of luminance compared to black

55
Q

illuminance

A

light projecting power (lumens)
larger image = larger illuminance

56
Q

privacy filter

A

prevents people from seeing a screen

57
Q

analog

A

carries a continuous variable signal of RGB video

58
Q

DVI

A

video cable
legacy to DisplayPort/Thunderbolt/HDMI

59
Q

5 types of DVI

A

A
D (single)
I (single)
D (dual)
I (dual)

60
Q

DVI-A

A

analog only

61
Q

DVI single

A

3.7 Gbps
1920x1200 @ 60 fps

62
Q

DVI dual

A

7.4 Gbps
HDTV @ 85 fps

63
Q

DVI-I

A

both digital and analog

64
Q

DVI-D

A

digital only

65
Q

HDMI

A

graphics and source I/O
video/audio streaming
remote control
digital content protection
backwards compatible w/ DVI-D
19 pins
Rating: Standard, High Speed

66
Q

HDMI v1.4

A

4K
100 Mbps
19 pins
micro-HDMI version

67
Q

HDMI v1.3

A

mini-HDMI (camcorders)

68
Q

HDMI 2.0

A

18 Gbps

69
Q

HDMI 2.1

A

48 Gbps
10K @ 120 Hz

70
Q

DisplayPort

A

royalty-free
same as HDMI
daisy-chain multiple monitors
max 17.28 Gbps
20 pins

71
Q

DVI -> HDMI

A

laptop to TV

72
Q

DVI-I -> VGA

A

older to newer device
analog only

73
Q

HDMI -> VGA

A

older to newer device
analog and digital

74
Q

DisplayPort/Thunderbolt -> DVI

A

“certain age” device to newer device
does not need signal conversion

Comptia PCS110 and 111 (3 decks)

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