Terms and definitions

Question 1

Electronic message sent from one device to another

Answer 1

Email

Question 2

Protocol used on the internet for exchanging files

Answer 2

FTP server

Question 3

Type of IP visible to the public

Answer 3

Routable IP

Question 4

Unique number for each computer on a given network

Answer 4

IP address

Question 5

Descriptive name for an address or group of addresses on the internet

Answer 5

Domain name

Question 6

Location for passing data in and out of your computer

Answer 6

Port

Question 7

Combines the functions of a cable modem and a router in a single device

Answer 7

IP gateway

Question 8

Internet service that locates and translates domain names into IP addresses

Answer 8

DNS (Domain Name System)

Question 9

Temporary IP address

Answer 9

Dynamic

Question 10

LAN

Answer 10

local area network

Question 11

Geographically-close set of computers connected on a single network that use the same communication device

Answer 11

LAN

Question 12

WAN

Answer 12

wide area network

Question 13

Group of connected computers that are geographically far apart

Answer 13

WAN

Question 14

Has two sides that represent a network

Answer 14

IP gateway

Question 15

Computer or workstation that obtains information and applications from a server

Answer 15

Client

Question 16

Computer or program that manages access to a centralized resource or service in a network

Answer 16

Server

Question 17

Permits and blocks web traffic

Answer 17

Firewall

Question 18

Establishes a secure connection to an organization’s private network using a public network

Answer 18

VPN (virtual private network)

Question 19

Logical address that identifies a device globablly

Answer 19

IP (Internet Protocol) address

Question 20

Identifies a device to other devices on the same local network

Answer 20

MAC (media access control) address, or physical address

Question 21

12-digit hexadecimal number embedded into the manufacturer’s network controller hardware

Answer 21

MAC address

Question 22

consisting of 48 bits, this is separated into a manufacturer identifier and a device identifier

Answer 22

MAC address

Question 23

DHCP

Answer 23

Dynamic Host Configuration Protocol

Question 24

ISP

Answer 24

Internet Service Provider

Question 25

NAT

Answer 25

Network address translation

Question 26

IANA

Answer 26

Internet Assigned Numbers Authority

Question 27

Responsible for standardizing IP addresses, port numbers, and manages domain names worldwide

Answer 27

IANA (Internet Assigned Numbers Authority)

Question 28

TCP

Answer 28

Transmission control protocol

Question 29

UDP

Answer 29

User datagram protocol

Question 30

Combination of an IP address and a port number

Answer 30

Socket address

Question 31

Connection-oriented protocol considered reliable for data transfer

Answer 31

TCP

Question 32

Connectionless protocol that is fast, but lost packets are not retransmitted

Answer 32

UDP

Question 33

TCP and UDP are examples of what?

Answer 33

Ports

Question 34

Three categories of ports

Answer 34

Well-known - reserved for major applications Registered - primarily used for vendor applications Ephemeral - private and used for various applications

Question 35

Process in which several hosts or computers share a single or a set of public IP addresses to gain access to the internet

Answer 35

Network Address Translation (NAT)

Question 36

Version of NAT that allows multiple private IP addresses to share a common connection to the internet over a single public IP address (NAT overload)

Answer 36

Port address translation (PAT)