Browsing Cisco
DNS and the IP Name-Server command
DNS behaviors of a Cisco router are important topics for both the CCNA exam and real-world production networks, and you probably didn't know there were so many DNS details before you began studying for the exam! In this tutorial, we'll look at the ip name-server command and its proper usage.
The Joy of Hex
Cisco certification candidates, particularly CCNA candidates, must master binary math.
Introduction to Bridging and Switching
Bridges and switches operate principally at Layer 2 of the OSI reference model.
Introduction to BGP
BGP is one of the most complex topics you'll study when pursuing your CCNP, if not the most complex.
Deciphering Pings
As you study for your CCNA and CCNP exams, particularly if you're getting hands-on practice in your home lab or rack rental service, you're going to be sending a lot of pings.
ISDN BRI Concepts
ISDN refers to a collection of standards that define a digital architecture that provides an integrated voice/data capability to a location, utilizing the public switched network and includes benefits such as the ability to carry a variety of user-traffic feeds, faster call setup, and faster data transfer rate.
Frame Relay Concepts
Frame Relay is a connection-oriented data-link technology that defines single-link virtual circuit multiplexing by assigning connection identifiers.