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See how Session Initiation Protocol (SIP), an internet signaling protocol, is used in the converged Unified Communications environment.

VMware vCloud Director fashions the provisioning of the software-defined datacenter layer to allow for a full virtual datacenter deployment within a short period of time.

Gain foundational knowledge about how Docker can help you address common software problems such as quality assurance, deploying complex software systems concurrently and keeping up with maintenance.

Learn how to solve some of the age-old and complicated puzzles of subnetting.

Discover how the fundamental elements of a requirement give rise to its intrinsic value. Understanding the very nature of those elements is essential to eliciting, planning, analyzing, communicating, and managing them.

The ability to interpret and understand IP addresses and subnet masks is critical for an IT professional. This skill is the foundation for troubleshooting numerous problems, from the assignment of an IP address to a host to routing problems to access-control list problems. It is also necessary for designing and configuring efficient IP networks.

Learn how a switch moves data through the network, and what makes a switch efficient.

Free websites and apps track your personal data; find tips to protect yourself online.

Discover how the Red Hat Certified Architect program provides a credential that represents skills and knowledge needed for a world in which IT architecture is undergoing a period of rapid change and evolution.

Discover what the Internet of Things (IoT) is, where it can affect the most short-term change, its impact on existing networks, as well as some business, cultural, and ethical considerations.