In this learning activity you'll examine a stateful packet inspection firewall that keeps track of legitimate Internet service requests, also known as dynamic packet filtering.

In this learning activity you'll observe how computers operate in a client-server network operating system and consider the advantages and disadvantages of such a system.

In this learning activity you'll discover how to evaluate a problem statement using both the MEA and the IP Techniques.

In this learning activity you'll explore how to reduce electromagnetic interference (EMI) and crosstalk between adjacent wires.

In this interactive lesson, learners read and hear instructions for sending an e-mail. Steps are given for composing an e-mail message and for sending it. Students have an opportunity to write their own messages. A quiz follows the instruction.

Learners examine the do's and don'ts of blogging in a school setting. They compare the features of a student blog with those of a classroom community blog. This learning object is particularly designed for instructors.

In this learning activity you'll explore what a denial of service attack is and learn how a single hacker can take down an entire system.

In this learning activity you'll explore the IPv4 IP address scheme and the planned conversion to IPv6.

Explore what DDoS attacks are, the methods used to carry them out, and how to prevent them.

Test your knowledge of acronyms related to IT security.

Review 2

This game is all about the World of Internet. Let's test your knowledge about it!

Answer questions from lessons in Unit One.