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1.1 Local Area Networks

The type of Computer network to be studied in 1.1 is a single isolated LAN with no connection to any other networks. For example, a smali office network. The LAN could be used for file serving/sharing, print sharing, application serving, internal e-mail, CDROM sharing, intranet.

Hardware

Stations (network interface)

Servers (file, print, application, internal communication, intranet)

Passive components (cable - UTP/coax/fibre, connections - plugs/sockets) Active components (repeaters, hubs, switches)

Topology

Node/link (effect of failure)

Star

Bus (terminator)

Ring

Radio/infra-red

Software

Network Operating System Client

Server/sharer

Communication

General concepts of protocols Ethernet (CSMA/CD)

Addressing (MAC)

Bandwidth

Functionality

file serving/sharing print sharing application serving internal e-mail CDROM sharing intranet Security

Login

User ID/Username Password Accounting File access control

Intranet

Protocol (eg TCP/IP)

Server

Browser

1.2 Local Area Internetworks

The type of Computer network to be studied in 1.2 consists of two or morę close Local Area Networks connected together. It has suitable hardware, software and a protocol to permit data to flow between the networks. This type of internetwork may simply consist of two LANs in a building or campus linked together. For example, a school or college network. This type of

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Computing Support Materials: Computer Networking (H)