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A+ IT Essentials Vocabulary > Networking Concepts > Flashcards

Networking Concepts Flashcards

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1
Q

RG59 / RG6

A

Types of coaxial cable used for television

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2
Q

PAN

A

Network connecting peripherals such as mice, printers, and smart phones to a single host using Bluetooth technology

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3
Q

Duplex Multimode LC Connector

A

Fiber optic connector that accepts both the sending and receiving fibers

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4
Q

WAN

A

Network that is owned by an ISP or corporations covering a wide geographic area

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5
Q

Firewall

A

software or hardware that permits or denies traffic in order to protect data and equipment from unauthorized access

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6
Q

WEP / WPA2

A

Types of encryption used on wireless networks

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7
Q

DHCP

A

Protocol that dynamically assigns IP addresses to hosts

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8
Q

IPv6

A

128-bit address assigned to hosts and represented in hexadecimal format

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9
Q

CAT5e / CAT6 / CAT7

A

Category ratings for twisted-pair cables that specify number of wires and twists and affects distance limitations

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10
Q

TCP/UDP Port Number

A

Predefined numbers that identify commonly used protocols such as FTP, SSH, HTTP, and DNS

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11
Q

OSI TCP/IP

A

Layered reference models that prepare data for transmission

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12
Q

MAN

A

A network that spans a large campus or city and interconnects buildings through wireless or fiber optic backbones

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13
Q

Router

A

A device that connects networks and forwards traffic from hosts to remote networks through the use of IP addresses

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14
Q

Repeaters

A

Devices that regenerate a weak signal to extend the distance that data can travel

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15
Q

RJ45

A

Connector for twisted-pair cables

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16
Q

Thicknet/Thinnet

A

Types of coaxial cable used for networks. Thicknet referred as 10base5 systems, where 10 means 10mbps speed. Base means baseband and 5 denotes 500 meter max, RG-8/U is used as thik cable. Thinnet also referred as 10base2 where 2 denotes 200 m max distance between two nodes or repeaters RG-58/U is used as thin cable

17
Q

PoE

A

DC current is transferred over Ethernet cable, along with data, to power PoE devices

18
Q

Plenum

A

Cables with shielding made from a special plastic that retards fire

19
Q

CSMA/CD

A

Architecture designed to handle collisions by controlling how devices communicate on an Ehternet network

20
Q

T568A / T568B

A

Wiring standards for twisted-pair cabling

21
Q

LAN

A

Network covering a small geographic area typically owned by an individual

22
Q

Subnet Mask

A

32-bit value used with an IPv4 address to indicate network and host components

23
Q

Hub / Bridge /Switch

A

Intermediary devices used in a LAN to connect hosts and forward data to other devices

24
Q

EMI / RFI

A

Types of interference that affect the quality of data transmission. EMI (Electromagnetic Interference) also called RFI (Radio Frequency Interference). EMI is actually any frequency of electrical noise, whereas RFI is a disturbance that affects an electrical circuit due to either electromagnetic conduction or electromagnetic radiation emitted from an external source

25
Q

Single-mode / Multi-mode

A

Classification of fiber cables that signify light source, distance limitations and speed

26
Q

Duplex

A

Characteristic of media that allows data to flow in both directions at the same time or one direction at a time

27
Q

IPv4

A

32-bit address assigned to a host and usually represented in dotted decimal format

28
Q

UTP / STP

A

Unshielded Twisted Pair and Shielded Twisted Pair are cables that are commonly used for cabling local networks.

29
Q

MAC

A

48-bit address hard coded onto the NIC and usually represented in hexadecimal format

30
Q

Wireless Access Point

A

A device that connects wireless hosts to the network via the use of radio waves

A+ IT Essentials Vocabulary (8 decks)

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