The first part of the course gives the students an overview of data communication and networking. Basic concepts associated with data transmission and data communication techniques are presented to introduce students to communication. The second part of IT 511 provides students with an in-depth knowledge of the internal workings of different protocols in the TCP/IP protocol suite and how they are configured in the Linux and Windows NT environment. Topics include Networking Overview; Data Communication Techniques; Switching Concepts; OSI Reference Model and Layers; TCP/IP Protocol Suite and Services; TCP/IP Internetworking; IP Routing; TCP/IP Network Setup and Troubleshooting; Network Applications using SMTP, FTP, HTTP, DNS, DHCP and WINS.