Network Fundamentals

Question 1

LAN

Answer 1

Local Area Network - 2 or more networked computers

Question 2

WAN

Answer 2

Wide Area Network - a large number of interconnected LANs

Question 3

Internet

Answer 3

Largest WAN in existence

Question 4

Intranet

Answer 4

Private/local network

Question 5

Extranet

Answer 5

Private intranet with limited outsider access

Question 6

CAN

Answer 6

Campus Area Network - a group of interconnected LANs

Question 7

MAN

Answer 7

Metropolitan Area Network - typically a group of interconnected offices within the boundaries of a city - 802.6 standard

Question 8

GAN

Answer 8

Global Area Network - a single network with connection points spread around the world

Question 9

Servers

Answer 9

Share files, folders and printers

Question 10

Clients

Answer 10

Request access to shared systems

Question 11

Network Resources

Answer 11

Applications and files stored on the network

Question 12

client/server network

Answer 12

one computer is a server to multiple client computers

Question 13

peer-to-peer network

Answer 13

all computers act as both servers and clients

Question 14

Network Adapter/Network Interface Card(NIC)

Answer 14

the physical connection between a computer and the network

Question 15

MAC

Answer 15

Media Access Control

Question 16

Node

Answer 16

any device attached to a network

Question 17

Ethernet Standard

Answer 17

defines everything about modern network hardware

Question 18

Hub

Answer 18

repeats the frame down every network cabled connected

Question 19

Switch

Answer 19

Maintains a database of the connected computers and routes frames to the correct address

Question 20

Packet

Answer 20

small individually numbered units

Question 21

Network Frames

Answer 21

packets wrapped to be sent out onto the network

Question 22

Protocol

Answer 22

the language computers use to talk to each other

Question 23

TCP/IP

Answer 23

Transmission Control Protocol/Internet Protocol

Question 24

IP Address

Answer 24

address assigned to a computer statically or dynamically

Question 25

OSI Layer 1

Answer 25

Physical - cabling, hubs, switches, etc

Question 26

OSI Layer 2

Answer 26

Data Link - Divided into 2 sub-layers and is responsible for physical addressing. Example - MAC address

Question 27

OSI Layer 3

Answer 27

Network - responsible for routing functions and logical addresses. example - IP Address

Question 28

OSI Layer 4

Answer 28

Transport - responsible for managing packet size and confirming that packets reach their destination. Example - TCP and UDP

Question 29

OSI Layer 5

Answer 29

Session - responsible for session setup

Question 30

OSI Layer 6

Answer 30

Presentation - responsible for managing and translating the information into an understandable format that the Application layer can process

Question 31

OSI Layer 7

Answer 31

Application - represents the network-related program code and functions running on a computer. Example - POP3 and SMTP

Question 32

CSMA/CD

Answer 32

Carrier Sense Multiple Access/Collision Detection - wired access method used by all ethernet networks

Question 33

LLC

Answer 33

Logical Link Layer - Responsible for error correction and flow control

Question 34

TCP/IP Layer 1

Answer 34

Link/Network Interface

Question 35

TCP/IP Layer 2

Answer 35

Internet

Question 36

TCP/IP Layer 3

Answer 36

Transport

Question 37

TCP/IP Layer 4

Answer 37

Application