ITM 301 Chapter Notes - Chapter 3: Netstat, Traceroute, Netbios

• School: Ryerson University
• Department: Information Technology Management
• Course: ITM 301
• Professor: Franklyn Prescod

Document Summary

Identify and explain the functions of the core tcp/ip protocols. Tcp (transmission control protocol) is an osi transport layer, connection-oriented protocol that requires a connection to be established between communicating nodes before it will transmit data. Tcp provides reliability through checksum, flow control, and sequencing information. Udp (user datagram protocol), like tcp, is a transport layer protocol. Udp is a connectionless service and offers no delivery guarantees. But udp is more efficient than tcp and useful in applications that require fast data transmission, such as video conferencing. Ip (internet protocol) belongs to the network layer of the osi model and provides information about how and where data should be delivered. Arp (address resolution protocol) belongs to the data link layer of the osi model. Mac (physical) address of a host, or node, and then creates a local database that maps the ip (cid:894)logi(cid:272)al(cid:895) address to the host"s mac (cid:894)physi(cid:272)al(cid:895) address.