ITM 301 Chapter Notes - Chapter 2: Domain Name System, Name Server, Miami Dade College

• School: Ryerson University
• Department: Information Technology Management
• Course: ITM 301
• Professor: Nurul Huda

Document Summary

Chapter 2 how computer find each other on. Addressing methods operate at the application, transport, network, and data link layers. The last two parts of a host name (mycompany. com) are called the domain name, which matches the name of the organization"s domain or network. The ip address can be used to find hosts on any computer on the globe if the ip address is public on the internet. Two types of ip addresses are used on the internet: Ipv4 internet protocol v. 4 addresses have 32 bits and are written as 4 decimal numbers called octets, i. e. 92. 106. 60. 200. It"s the physical address and you can find it on the network interface card (nic). It contains 2 parts, are 48 bits long, and are written as hexadecimal numbers, separated by colons, i. e. 00:60:8c:00:54:99. The first 24 bits (six hex characters, 00:60:8c) are known as the oui (organizationally. Unique identifier) or block id/company id and identifies the nic"s manufacturer.