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It A+ Vocab 1001 > Essentials Of Networking > Flashcards

Essentials Of Networking Flashcards

1
Q

Any computing device connected to a network

A

Host

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2
Q

Your computer

A

Local Host

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3
Q

Not your computer

A

Remote Host

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4
Q

A remote computer that stores the files that make up a Web site. Used server programs to store and share data

A

Web Server

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5
Q

Two popular Web server programs

A

Apache HTTP Server and Microsoft Internet Information Services (IIS)

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6
Q

Computer that has enabled a printer-sharing program built into Windows so that other computers on the network can use the printer

A

Print Server

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7
Q

A networked host that enables you to access a bunch of files and folders

A

File Server

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8
Q

The networked host you use to access email messages

A

Mail Server

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9
Q

Expansion card or motherboard interface that enables a PC to connect to a network via a network cable. A wireless one enables connection via radio waves rather than a physical cable

A

Network Interface Controllers (NICs)

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10
Q

Unique 48-bit address assigned to each network card. IEEE assigns blocks of possible addresses to various NIC manufacturers to help ensure that the address is always unique. The Data Link Layer of the OSI model uses these to locate machines

A

Media Access Control (MAC) address

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11
Q

Name coined by Xerox for the first standard of network cabling and protocols that define everything necessary to get data from one computer to another. Since its inception, it has gone through hundreds of improvements and even forms the basis of wireless networking signals

A

Ethernet

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12
Q

Improvement in Ethernet in areas such as speed, signaling, and cabling

A

Ethernet Flavors

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13
Q

Ethernet cabling system designed to run at 10 Mbps on twisted pair cabling

A

10BaseT

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14
Q

Ethernet cabling system designed to run at 100 Mbps on twisted pair cabling. Also called Fast Ethernet

A

100BaseT

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15
Q

Ethernet cabling system designed to run at 1000 Mbps on twisted pair cabling. Also called Gigabit Ethernet

A

1000BaseT

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16
Q

A hybrid network topology where the computers all connect to a central bus - a switch - and have a layout resembling a star

A

Star Bus Topology

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17
Q

Device that filters and forwards traffic based on some criteria. A bridge and router are both examples of them. “Smart” repeater, they memorize the MAC addresses of all the connected devices and only send out repeated signals to the correct host

A

Network Switch

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18
Q

Electronic device that sits at the center of a star bus topology network, providing a common point for the connection of network devices. “Stupid” repeater, anything sent in one port automatically went out to all the other connected ports

A

Hub

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19
Q

The capacity of a network to transmit a given amount of data during a given period

A

Bandwidth

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20
Q

The connection between a computer and a switch. Most cable types, limited to 100 meters or less

A

Segment

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21
Q

The specified cabling for 10/100/1000BaseT and is the predominant cabling system used today. Consists of AWG-22-26 gauge wire twisted together into color-coded pairs. Each wire is individually insulated and encased as a group in a common jacket

A

Unshielded Twisted Pair (UTP) cabling

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22
Q

Standard telephone line

A

Cat1

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23
Q

Designed for 10-Mbps networks; a variant that used all four pairs of wires and supports 100-Mbps

A

Cat3

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24
Q

Designed for 100-Mbps networks

A

Cat5

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25
Q

Enhanced to handle 1000-Mbps networks

A

Cat5e

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26
Q

Supports 1000-Mbps networks at 100-meter segments; 10-Gbps networks up to 55-meters

A

Cat6

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27
Q

Supports 10-Gbps networks at 100-meter segments

A

Cat6a

28
Q

Supports 10-Gbps networks at 100-meter segments; shielding for individual pairs reduces crosstalk and noise problems. Not an ANSI/TIA standard

A

Cat7

29
Q

Consists of twisted pairs of wires surround by shielding to protect them from EMI (electromagnetic interference). Tends to be used in places with excessive electronic noise like a shop floor area with lots of lights, electric motors, or other machinery that cause problems for other cables

A

Shielded Twisted Pair (STP) cabling

30
Q

Connects your telephone to the telephone jack in the wall. Supports up to 2 pairs of wires, though most phone lines use only one pair. Other pair is used to support a second phone line. Primarily used for telephone-based Internet connections

A

Registered Jack (RJ)-11

31
Q

The standard for UTP connectors. Has connections for up to four pairs and is visibly much wider than RJ-11

A

RJ-45

32
Q

Standards for connecting RJ-45 connector to the UTP cable

A

T568A and T568B

33
Q

High/speed cable for transmitting data, made of high-purity glads sealed within an opaque tube. Much faster than conventional copper wire such as coaxial cable

A

Fiber Optic Cable

34
Q

Round connector that needed two connectors on every fiber connection

A

ST Connector

35
Q

Square-shaped connector that needed two connectors on every fiber connection

A

SC Connector

36
Q

Double-pronged connector that was designed to support two fiber cables in one connector

A

LC Connector

37
Q

Transmits multiple light signals at the same time, each using a different reflection angle within the core of the cable. The multiple reflection angles tend to disperse over long distances, so it is used for relatively short differences. Generally runs at 10, 100, 1000 Mbps at about 600 meters

A

Multimode Fiber Optic Cabling

38
Q

Using laser-light, it allows for phenomenally high transfer rates over long distances. Rare. Record 100 terabits per second at over 100 miles

A

Single-Mode Fiber Optic Cabling

39
Q

Consists of a center cable (core) surrounded by insulation which is covered with a shield of braided cable. Center core carries the signal and the shield eliminates outside interference. Rated using an RG name

A

Coaxial Cable

40
Q

The effective resistance to the flow of an alternating current electrical signal through a cable, measured in ohms

A

Impedance

41
Q

Has a 75-ohm impedance rating and is used by cable TV. Thinner and doesn’t carry data quite as fast as RG-6

A

RG-59

42
Q

Has a 75-ohm impedance rating and is used by cable TV

A

RG-6

43
Q

Coaxial cable connector that uses a quarter twist connector

A

BNC Connector

44
Q

Coaxial cable connector that uses a screw connector. On the back of all cable modems and most TVs

A

F-Type Connector

45
Q

Group of computers connected via cabling, radio, or infrared that uses this connectivity to share resources such as printers and mass storage

A

Local Area Network (LAN)

46
Q

Group of computers connected by one or more switches - that is, a group of computers that receive broadcast frames from each other

A

Broadcast Domain

47
Q

Common name for the IEEE 802.11 wireless Ethernet standard

A

Wi-Fi

48
Q

Uses a building’s existing electrical network for Ethernet. Requires specialized bridges between the Ethernet network and power outlets

A

Ethernet Over Power

49
Q

A device that connects dissimilar network technologies that transmit the same signal

A

Bridge

50
Q

ANSI/TIA standards that define methods of organizing the cables in a network for ease of repair and replacement

A

Structured Cabling

51
Q

All the cables concentrated in this area

A

Telecommunications Room

52
Q

Cables running from the telecommunications room to the work area

A

Horizontal Cabling

53
Q

A single piece of installed horizontal cabling. In most networks, a Cat5e or better

A

Run

54
Q

An office or cubicle that potentially contains a workstation and a telephone

A

Work Area

55
Q

Each wire uses a single solid wire. Better conductor, but it is stiff and will break if handled too often or too roughly

A

Solid Core UTP

56
Q

Each wire is actually a bundle of tiny wire strands. Not quite as good a conductor, but it will stand up to substantial handling without breaking

A

Stranded Core UTP

57
Q

Provides a safe, stable platform for all the different hardware components. 19 inches wide but vary in height from 2- to 3-foot high models that bolt onto a wall to the more popular floor-to-ceiling models

A

Equipment Rack

58
Q

Height measurement for racks. Is equal to 1.75 inches

A

U

59
Q

A device that fits in a 1.75-inch space

A

1U

60
Q

A device that fits in a 3.5-inch space

A

2U

61
Q

A device that fits in a 7-inch space

A

4U

62
Q

A box with a row of female connectors (ports) in the front and permanent connections in the back, to which you connect the horizontal cables. Available with 8, 12, 24, 48, or even more ports. Also has a Cat rating

A

Patch Panel

63
Q

Special type of connector that is used by the most common type of patch panel

A

110 Block/110-punchdown Block

64
Q

Short (typically 2- to 5-foot) UTP cables. Uses stranded rather than solid cable

A

Patch cables

65
Q

A widespread group of computers connected using long-distance technologies

A

Wide Area Network (WAN)

66
Q

Device connecting separate networks; forwards a packet from one network to another based on the network address for the protocol being used

A

Router

It A+ Vocab 1001 (18 decks)

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