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Flashcards in Net + Deck (19)
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1

LAN

Local area network - A small network, limited to a single collection of machines and one or more cables and other peripheral equipment.

2

WAN

Wide area network - Spans distances measured in miles and links two or more separate locations.

3

VPN

Virtual Private Network - Work through secure tunnels through the internet. Require authorization and encryption to access hosts.

4

Peer to Peer Network

Most common type of network - the linking of two or more computers (up to 10) to share resources with no dedicated server

5

Client/Server Network

Server is a computer that shares it's resources across the network. Client is one that accesses shared resources.

6

Most common network topology

Star

7

Types of cable or network medium

Fiber optic, coaxial, twisted pair

8

Typer of connector for the twisted pair cable

RJ-45 connector

9

What cable is fastest?

Fiber optic cable

10

Hub

Central point for connecting computers. Active requires electrical power to regenerate and amplify signal. Passive hub requires no external power and does not provide regeneration.

11

Switch

Maintains a switching table, keeping track of hardware address located on the net on each port. Sends the packet down the port in which the computer is looking for.

12

Firewall

Filters network traffic, filters applications access to network, can be hardware or software

13

Repeater

Connectivity devices that perform the regeneration and amplification of an analog or digital signal

14

Router

Connects networks for shared internet connections, Filters out broadcast transmissions. Prevents certain types of traffic from getting to a network. Monitors network traffic and reports statistics. Allows shared internet connection.

15

DHCP

Dynamic host control protocol - assigns IP address and tells clients where to go for domain name service, routers etc.

16

MAC address

Media access control address. The physical address for network interfaces.

17

What is the most common IP?

IPV4. Moving to IPV6 because we are running out of space.

18

How do you check your IP address?

CMD - ipconfig, or ipconfig/all

19

IEEE

Develops network standards 802.11b, 802.11g, 802.11N, 802.11ac