A communications protocol used to send e-mail across a network or the Internet:

• Simple mail transfer protocol (SMTP)

• Local mail service protocol (LMSP)

• Regional mail service protocol (RMSP)

• Global mail service protocol (GMSP)

• DNS mail address protocol (DMAP)

A type of operating system that provides management tools for distributed networks, e-mail servers, and Web hosting sites:

• Global operating system

• Local operating system

• Server operating system

• Regional operating system

• DNS operating system

Software that creates an operating environment that emulates another computer platform:

• Virtual machine

• Linux, Ubuntu

• Unix, Windows

• Linux, Macintosh

• Ubuntu, Windows Server

Circuitry, often on an expansion card mounted inside a computer, that transmits and receives data on a local area network:

• Network interface card

• Network image adapter

• Network sound adapter

• PCI Express adapter

• Network DMA adapter

There are main parameters to identify workstation in a network:

• MAC address (Media Access Control address)

• IP address

• TCP/IP address

• Proxy server address

• DMA address

An important network devices acts as a central distribution point to transfer data to its destination:

• Switches, Gateways

• Routers, Bridges, Protocols

• Protocols

• Server operating system

• DMA address

The OSI (Open Systems Interconnection) model has seven layers, which can be divide on two groups. Network components identified on some of this two levels:

• Physical

• Logical

• Abstract Protocols

• ELT model component

• PCI level

It is designed to allow peer entities on the source and destination hosts to carry on a conversation, two end-to-end transport protocols have been defined here:

• PTP (Physical Transport Protocol)

• LTP (Logical Transport Protocol)

• TCP (Transmission Control Protocol)

• UDP (User Datagram Protocol)

• TSP (Transport Service Protocol)

On the top of the transport layer is the application layer. It contains all the higher-level protocols:

• IP (Internet Protocol)

• ICMP (Internet Control Message Protocol)

• TCP (Transmission Control Protocol)

• Virtual Terminal (TELNET), file transfer (FTP)

• File Transfer Protocol (FTP)

The application layer is the higher-level protocol:

• HTTP, SMTP

• RTP, FTP

• POP3, LTP

• FTP, TCP

• IMAP, ICMP