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This white paper compares the implementation of IP Multicast in the Cisco IOS and in the Nexus OS and provides some background on the evolution and challenges of implementing multicast in the IOS is appropriate.

Are you at a crossroads professionally or looking to start training for a new job? If so, you might want to consider pursuing network administration as a career. Network administrators are responsible for maintaining computer hardware and software systems that make up a computer network, including maintaining and monitoring active data networks, converged infrastructure networks, and related network equipment.

When the hostname.domainname associated with my Small Office Home Office (SOHO) failed to update after a power outage, and a new DHCP-assigned external address was assigned to my router, I was reminded of the need for Dynamic DNS. This article will explore the implem...

Rodger Foster, our senior Cisco instructor, reviews how multiple gateways are used to provide redundancy in the network.

If you need to control the digits contained in the telephone number that enter or leave a gateway, this white paper helps you learn about digit manipulation, including adding, subtracting, and changing telephone numbers.

Cloud computing is constantly reshaping the way we work, learn and play. Let's look at 10 ways the cloud will (and to a large degree already has) changed the world.

Before implementing Cloud Computing, it's important to consider the security - learn the risks & benefits to be sure it is the right solution for you.

When it comes to cyber security, we have a lot to look out for, take precautions against and be paranoid about. Learn more about these cybersecurity risks here.

Global Knowledge instructor Mark Baugher shares three quick tips on how to use Microsoft PowerShell 4.0 more effectively: Discoverability using the Get cmdlet, dot notation and pipeline.