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

In this learning activity you'll practice converting between degree minute second and decimal degree.

Students locate the countries of the Middle East on a map in this interactive exercise.

In this learning activity you'll review how a local area network computer uses a subnet mask to determine if its message is intended for a computer on the same network or on a remote network.

Learners examine the labeling scheme used in ladder logic diagrams to identify components, wires, rungs, and rails. This activity includes self-check questions.

Learners view two animations that show the effects of eddy currents.

In this interactive object, learners follow step-by-step instructions for reducing algebraic fractions, which contain addition and/or subtraction, to their simplest form. This activity has audio content.

In this highly interactive and animated object, learners follow a step-by-step process to reduce algebraic fractions, which contain no addition or subtraction, to their simplest, most elementary form. Immediate feedback is provided. This activity has audio content.

In this activity, you'll identify ways to prevent and address sexual harassment.

In this learning activity you'll examine the format of an IP address and interpret the octet by converting between decimal and binary numbers.

In this animated object, learners follow an analogy of water flowing through pipes and valves to see how current increases in a parallel circuit as branches are added.

In this learning activity you'll identify Man-in-the-middle attacks and discuss how they affect network security.

In this learning activity you'll examine how network address translation works.

In this interactive object, learners read a description of value-added and non-value-added activities and then place various work duties into these two categories.

In this learning activity you'll analyze the costs of rent-to-own buying plans and compare those plans to other consumer strategies.

Learners read definitions of the terminology associated with algebraic operations and then follow steps to simplify algebraic expressions.

In this animated object, learners follow an analogy of water flowing through pipes and valves to see how resistance decreases in a parallel circuit as branches are added.

Learners follow step-by-step instructions for finding the lowest common denominator for a group of algebraic fractions and then enter their answers to three problems. Immediate feedback is provided. This activity has audio content.

Learners will identify ladder logic diagrams and the logic functions they perform.

In this learning activity you'll examine how logical addresses work. The IP address is the logical address assigned to a connection by the ISP or network administrator.