Studyguide for Nt1210 Mid Term

In: Computers and Technology

Submitted By indgoman
Words 1931
Pages 8
1230 Client server

Topics

• Transmission Control Protocol (TCP)/Internet Protocol (IP) for Wired and Wireless Networks

• The Open Systems Interconnections (OSI) Model

• IP Addressing

• Firewalls

TCP/IP for Wired and Wireless Networks[1]

TCP/IP is an open-standard communications protocol suite that is the standard for communicating on the Internet

• TCP and IP (two different protocols) contain all the fundamental mechanisms needed to support any and all types of networked communications

• TCP/IP was developed as part of the ARPAnet project in the 1960’s (the early development of the current Internet)

• TCP/IP became a unifying and reliable element that enabled interoperability across incompatible systems

• One of TCP/IP's most basic yet critical functions is its preparation of application data for transmission across a network.

• TCP/IP accepts data of virtually any size from applications (typically in the form of a file) and chops it up into smaller, more manageable chunks called segments (segmentation)

• In communicating, TCP handles flow control, IP handles addressing

• Being a suite of different protocols, TCP/IP includes such protocols as DNS, DHCP, http, ftp, POP3, SMTP and TELNET. Other TCP protocols may be found at http://www.protocols.com/pbook/tcpip1.htm

The Open Systems Interconnections (OSI) Model

The most common way to illustrate the communication process of segmentation and packetization is through the Open Systems Interconnections (OSI) Model

• The OSI model is a seven layer stack of processes that provide a standardized method of communicating between network devices

• The seven OSI model layers are the Application, Presentation, Session, Transport, Network, Data link and Physical layers

[pic]

• Each…...

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