In this learning activity you'll examine how a data file is broken into packets and transmitted over the Internet.

In this interactive object, learners answer questions about doing research on the Internet.

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

In a series of interactive exercises, learners identify the parts of a URL, a Web site, and an e-mail memo. Students are given their score at the end of the activity.

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.

Learners watch a video of a walk around inspection of a rough terrain lift truck from front to rear. Note: This object contains video clips. High-speed Internet is highly recommended.

In this learning activity you'll examine how routers transfer data between local area networks and the Internet.

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.

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

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.