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IT Foundations - WGU > Computer Expansion > Flashcards

Computer Expansion Flashcards

1
Q

A physical interface standard that you can use to connect up to 127 peripheral devices to your computer

A

Universal Serial Bus (USB)

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2
Q

Introduced in 1996, supports two data rates; 1.5 Mbits/sec, called Low Bandwidth or Low Speed & 12 Mbits/sec, called Full Bandwidth or Full Speed

A

USB 1.x

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3
Q

USB version that became widely available & and fixed prior version to operate w/ hubs

A

USB 1.1

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4
Q

Introduced in 2000, had a transfer rate of 480 Mbits/sec, called High Speed; supports battery charging with low- and high-power variations

A

USB 2.0 standard

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5
Q

How many mA’s is in a unit load?

A

100 mA

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6
Q

What is the max unit load a USB 2.0 can draw?

A

5 unit loads (500 mA)

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7
Q

Introduced in 2010, added the SuperSpeed transfer rate of 5 Gbits/sec

A

USB 3.0 standard

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8
Q

Introduced in 2015, SuperSpeed USB 10 Gbps transfer rate, also simply branded as SuperSpeed+.

A

USB 3.1

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9
Q

What USB standard supports 150 mA and a device may draw a maximum of 6 unit loads (900 mA)

A

USB 3.x

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10
Q

Designed for portable devices that can be connected to a computer for data transfer or charging

A

USB On-The-Go (OTG)

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11
Q

Color indicator of a USB 3.x port

A

Blue

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12
Q

Color indicator of a USB 2.x port

A

Black

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13
Q

How many pins does the USB 3.0 port have?

A

9 (5 in the front, 4 in the back)

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14
Q

Physical interface used to connect internal hard drives, solids state drives, and optical drives to the computer

A

Serial AT Attachment (SATA)

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15
Q

What is the shape of an internal SATA connector and port?

A

L shaped

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16
Q

Effectively transfer 150 MB/sec

A

SATA 1.0 (SATA 1.5 Gbits/sec)

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17
Q

Provides transfer speeds up to 300 MB/sec

A

SATA 2.0 (SATA 3 GBits/sec)

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18
Q

Provides transfer speeds up to 600 MB/sec

A

SATA 3.0 (SATA 6 GBits/sec)

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19
Q

Allows you to connect external SATA hard drives, solids state drives, and optical drives to your computer

A

External SATA (eSATA)

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20
Q

Main differences between internal SATA and eSATA

A

eSATA cables have shielding against electromagnetic interference, unlike internal SATA cables.

The eSATA connector and port are I shaped rather than L shaped, to prevent users from using the unshielded internal SATA cable externally.

eSATA data cables have a maximum length of 2 meters, while internal SATA cables can be up to 1 meter long.

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21
Q

Connector used for wired analog telephone service and for dial-up modem connections on computers

A

RJ-11: Registered Jack 11

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22
Q

Used for wired networks with eight pins

A

Ethernet: RJ-45

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23
Q

A general-purpose serial bus for high speed storage and video connections & operates as a peer-to-peer connection

A

FireWire: IEEE 1394

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24
Q

Respective speeds of FireWire 400 and FireWire 800

A

400 Mbps

800 Mbps

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25
Q

A low-speed serial connector found on old PCs and used for mice, external modems, and various other devices

A

RS-232 (serial port)

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26
Q

D-shaped connector called a D-sub

A

RS-232 (serial port)

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27
Q

Two types of RS-232 connectors

A

smaller DB-9 connector and a larger DB-25

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28
Q

Used for old printers and other external devices and is faster than RS-232

A

Parallel: Also known as a printer port

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29
Q

Uses 25-pin D-sub connectors, but the port on the PC is female

A

Parallel Interface (Printer Port)

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30
Q

Most parallel devices such as printers have a ______ ______ connector on the peripheral side.

A

36-pin Centronics

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31
Q

The dominant standard for mice and keyboards prior to the adoption of USB

A

PS/2 ports

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32
Q

Use round, 6-pin connectors

A

PS/2 ports

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33
Q

Color code for PS/2 connectors

A

purple for keyboard and green for a mouse

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34
Q

Generate the signals needed to output images on a display device

A

Video expansion cards

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35
Q

Devices with LCD displays will have a TTL (parallel) interface or an LVDS (serial) interface connection

A

Laptops

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36
Q

The oldest commonly used standard for computer displays

A

VGA

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37
Q

VGA Connector & Port

A

15-pin D-sub connector, usually with a blue port

38
Q

VGA are hot swappable (True/False)

A

False

39
Q

VGA transmits to the display using an ______ ______

A

Analog Signal

40
Q

Supports a 24-bit display mode (224 or 16,777,216 colors, referred to as True Color), up to 7680 × 4800 pixel resolution with a 16:10 aspect ratio, and refresh rates up to 70 Hz

A

VGA Connection

41
Q

The oldest widely used digital connector for computer displays

A

Digital Visual Interface (DVI)

42
Q

Supports both digital and analog video connections, Dual Link 28-pin connector, Single Link 18-pin connector

A

DVI-I

43
Q

Supports only digital video connections, Dual Link 24-pin connector, Single Link 18-pin connector

A

DVI-D

44
Q

DVI connection that supports only analog video connections. It isn’t very common, 17-pin connector

A

DVI-A

45
Q

DVI connectors that have more pins, and are necessary for supporting resolutions greater than 1920x1200

A

Dual-Channel

46
Q

DVI connectors that have two blocks of nine pins with a gap between

A

Single-Channel

47
Q

D-shaped connector but is flatter than VGA and with two rows of pins

A

HDMI

48
Q

Designed as an enhanced replacement for DVI with features useful for home theater equipment such as integrated audio signal, digital rights management (DRM) protection, and a smaller and more convenient connector

A

HDMI

49
Q

HDMI version that support 3D video

A

HDMI 1.4 and higher

50
Q

Supports two video streams to drive multiple displays from a single cable

A

HDMI 2.0

51
Q

Supports 32 channels of high definition audio, while older versions support 8 channels

A

HDMI 2.0

52
Q

Supports 100 Mbps Ethernet, but may require an “Ethernet over HDMI” cable

A

HDMI 1.4 and higher

53
Q

A digital connector designed for high-resolution computer monitors that is rectangular with a single corner cut off

A

DisplayPort

54
Q

Devices that use Mini-DisplayPort or Micro-DisplayPort adapters

A

Laptops

55
Q

Color code of an analog microphone audio input

A

Pink

56
Q

Color code of an analog line level audio input, used for input from line outputs

A

Light Blue

57
Q

Color code of an analog line level audio output for the main stereo signal (front speakers or headphones)

A

Lime Green

58
Q

Color code of an analog line level audio output for surround speakers, typically rear stereo

A

Black

59
Q

Color code of an analog line level audio output for center channel speaker and subwoofer

A

Orange

60
Q

Digital audio signals supporting stereo audio, and multichannel Dolby Digital and DTS 5.1 audio surround sound

A

Optical Audio

61
Q

An Apple technology developed to replace FireWire that combines PCIe and DisplayPort into one serial bus, allowing it to transmit and receive data, video, audio, network data, and power

A

Thunderbolt

62
Q

Transfer rates of Thunderbolt

A

Thunderbolt 1 - 20Gbits/sec. 10Gbits/sec on each of the two data channels.
Thunderbolt 2 - 20Gbits/sec in a single data channel.
Thunderbolt 3 - 40 Gbit/sec. 10Gbits/sec on each of the four data channels.

63
Q

Daisy-chain up to 6 devices per port

A

Thunderbolt

64
Q

Can provide 10 W of power to each connected device

A

Thunderbolt 1 & 2

65
Q

Can provide 15 W of power to each connected device

A

Thunderbolt 3

66
Q

Uses the Mini DisplayPort (MDP) connector

A

Thunderbolt 1 & 2

67
Q

Uses the USB Type C connector

A

Thunderbolt 3

68
Q

Support dual 4K 60 Hz displays

A

Thunderbolt 3

69
Q

Can connect DisplayPort, DVI, HDMI, and VGA displays using adapters

A

Thunderbolt

70
Q

Designed to form a wireless personal area network (WPAN) or piconet of a handful of devices, presumably belonging to one user; uses 2.4 GHz microwave frequencies

A

Bluetooth

71
Q

How many devices can each piconet support?

A

8 devices

72
Q

What is the range of a class 2 bluetooth transceiver?

A

10-meter (33 ft)

73
Q

Supports a maximum data rate of 2 MBps

A

Bluetooth 2.x

74
Q

Supports a data rate of 25 Mbps

A

Bluetooth 3.0

75
Q

Supports 25 Mbps, but includes a number of other features, including more efficient data transfers. Introduced Bluetooth Low Energy (BLE)

A

Bluetooth 4.x

76
Q

An emerging standard that is found on newer devices, and offers more flexible combinations of speed and range; intended specifically for Internet of Things devices

A

Bluetooth 5 (Not 5.0)

77
Q

Global term for technology used to protect copyrighted data

A

Digital Rights Management (DRM)

78
Q

Designed for only two devices to temporarily communicate over short distances, and in fact only one of them even needs to be powered.

A

Near field communication (NFC)

79
Q

Commonly used for contactless payment devices

A

Near field communication (NFC)

80
Q

Data transfer rate tops out at 424 kbits/sec

A

Near field communication (NFC)

81
Q

Transfer rate is 24 Mbits/sec

A

Bluetooth

82
Q

Uses a focused ray of light in a modulated signal to transmit digital data that operates at a modulate 38 kHz frequency

A

Infrared (IR)

83
Q

Maximum data transfer speed is 4 Mbits/sec

A

Infrared (IR)

84
Q

What DisplayPort version supports 8.64 Gbit/s data rate over a standard 4-lane main link?

A

1.0 to 1.1

85
Q

What DisplayPort version supports 17.28 Gbit/s in High Bit Rate 2 (HBR2) mode?

A

1.2

86
Q

What DisplayPort version supports 32.4 Gbit/s with the High Bit Rate 3 (HBR3) mode?

A

1.3 to 1.4

87
Q

Carry analog component RGBHV (red, green, blue, horizontal sync, vertical sync) video signals and VESA Display Data Channel (VESA DDC) data from a VGA-enabled device, such as a projector or computer, to a monitor.

A

VGA HD15 cables

88
Q

A High Density DB-style connector with three rows of 5 pins, omits pin #9

A

HD DB15

89
Q

Same pinout as the HD15, but does not omit the #9 pin

A

DE15

90
Q

Apple’s proprietary expansion interface used to charge and connect its “i-branded” mobile devices, such as the iPhone, iPad, and iPod

A

Lightning cable

91
Q

USB 2.0 cable with a very small 8-pin connector on one end and a USB Type A connector on the other

A

Lightning cable

92
Q

Contain a small authentication chip to prevent unauthorized production of the cables.

A

Lightning connectors

IT Foundations - WGU (20 decks)

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