Abbreviations

Question 1

LAN

Answer 1

Local Area Network

Computer network defined by a small geographical area in which multiple computers and other devices are connected

Question 2

WAN

Answer 2

Wide Area Network

A network defined by a wide spread area across an unlimited geographical area and connects multiple LAN’s

Question 3

MAN

Answer 3

Metropolitan Area Network - larger than a LAN but smaller than a WAN and managed by city municipality and enables connection to broader networks

Question 4

SAN

Answer 4

Storage Area Network - a dedicated network that supports file servers and provides efficient transfer usually large data sizes at extremely high rates

Question 5

NIC

Answer 5

Network Interface Controller - allows endpoints to interact with other devices over a network

Question 6

AP

Answer 6

Access Point - allow end devices to connect to a network wirelessly

Question 7

EMI

Answer 7

Electromagnetic interferences - interference that can disrupt signals

Question 8

RFI

Answer 8

Radio Frequency interferences - interference that can disrupt signals

Question 9

IP

Answer 9

Internet Protocol - uniquely identifies computers on a network

Question 10

WiFi

Answer 10

Wireless Fidelity - technology based on IEEE 802.11 standards that allows wireless connection to a network via radio waves

Question 11

WLC

Answer 11

Wireless LAN Controller - allows the configuration of multiple AP’s to be managed from a central device

Question 12

DNS

Answer 12

Domain Name Service - name to IP addresses

Question 13

HTTP

Answer 13

Hypertext Transfer Protocol - transfers text-based data over the Internet

Question 14

HTTPS

Answer 14

Hypertext Transfer Protocol Secure - transfers encrypted data over the Internet

Question 15

FTP

Answer 15

File Transfer Protocol - transfers files over the network

Question 16

DHCP

Answer 16

Dynamic Host Configuration Protocol - assigns IP addresses to devices

Question 17

SMTP

Answer 17

Simple Mail Transfer Protocol- mail transfer over the internet (uses port 25)

Question 18

SSH

Answer 18

Secure SHell - command line protocol that allows users to run remote commands on a machine

Question 19

ICMP

Answer 19

Internet Control Message Protocol - used by network devices to generate error messages when IP packets are not able to reach their destinations

Question 20

ARP

Answer 20

Address Resolution Protocol - resolves a logical address (IP) to a physical address (MAC) and saves the results in the host ARP cache

Question 21

UTP

Answer 21

Unshielded Twisted-Pair - media that consists of four twisted pairs of colored wires

Question 22

STP

Answer 22

Shield Twisted-Pair -media that is wrapped with foil around each twisted pair