Data Communications and Network Services

Obtaining Addressing Information Automatically
-In this module, you will learn the purpose and benefits of using static and dynamic addressing in a network. You will use Packet Tracer to create a small wired network and enable the devices to automatically obtain the needed addressing information to connect to the network.

Limitations of IPv4 and Transitioning to IPv6
-In this module, you learn the benefits and limitations of the IPv4 addressing system and why NAT and IPv6 were implemented to address the limitations. You will use Packet Tracer to create and examine traffic for NAT translations.

Transporting Data Effectively and Efficiently
-In this module, you will observe the interactions that occur between servers and clients as data is requested and transmitted over the network. You will learn how data is transported across the network and the protocols that are used to accomplish the tasks. Comparisons between the two transport layer protocols, TCP and UDP will be made.

Common Network Services
-There are numerous services requested and delivered over the network. Some may seem apparent while others are at work in the background providing needed services. In this module, you will learn about common network services and protocols such as email, web services, instant messaging, DNS, HTTP, HTML, SMTP, Telnet, and SSH.