Open Systems Interconnection

A theoretical framework for network communications

Transmission Control Protocol/ Internet Protocol

A four layer practical model for communication

Domain Name System

Name resolution service for IP Addresses

Transmission control protocol

Connection based transfer with error checking

User Datagram Protocol

Connectionless transfer of data over a network

Internet Protocol version 4/6

Addressing protocol used to get data from one system to another

Address Resolution Protocol

Used for Physical address to IP solutions

Logical Link Control

Flow control and error control, works directly with the network layer of the OSI model (based on Data-Link)

Routing Information Protocol

What routers use to communicate to eachother (a basic routing protocol)

Media Access Control

The physical address of a network device

Open Shortest Path First

More advanced than RIP, selects a path based on the number of hops (steps taken)

Internet Protocol Security

Security protocol for IP traffic

Point-to-Point Tunneling Protocol

Uses VPN's to provide remote users with access to a private network

Layer 2 Tunneling Protocol

Another VPN protocol using IPsec to encrypt traffic

Asynchronous Transfer Mode

Cell based method of transferring data used in WANs

Protocol Data Unit

Data units at layers 5,6 and 7 (Session, Presentation and Applicaiton)