Cisco CCNA / CCNP Certification - Deciphering Ping Results
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. As a CCNA or CCNP cand…
Cisco CCNA Certification: The Hidden Details Of Telnet
Telnet is a simple yet powerful program that allows you to connect to a remote Cisco router or switch, and then configure it as though you were right at the console. Telnet is also one of those feat…
Cisco CCNA / CCNP Certification Tutorial: Frame Relay End-To-End Keepalives
One of the first things you learned about Frame is that the LMI also serves as a keepalive, or a heartbeat - and if three consecutive LMIs are missed, the line protocol goes down. There’s a limitatio…
Cisco Certification: Introduction To ISDN, Part IV
In part III of this ISDN primer, we learned that PPP has two main methods of authentication that Cisco certification candidates need to know how to configure: PAP and CHAP.PAP has very few advantages…
Cisco CCNA Exam Tutorial: Split Horizon And Hub-And-Spoke Networks
For CCNA exam success, you had better know what split horizon is, how to turn it off, and when to turn it off. Knowing when to turn split horizon off is also important in production networks, because…
CompTIA Network+ Certification Exam Tutorial: Virus Attacks And Antivirus Programs
Whether you’re preparing to pass the Network+ or Cisco CCNA certification exam or not, you must not underestimate the importance of antivirus programs and virus definition updates. With all the att…
CCNA Exam Tutorial: MAC Addressing Formats And Broadcasts
Your CCNA exam success depends on your mastery of networking, routing, and switching fundamentals. Those fundamentals have to include knowledge of MAC addresses, so let’s take a close look at Media…
MCSE? CCNA? How To Choose The Best Computer Certification For You
When you’re choosing which computer certification to pursue next, you should also be formulating a plan for your career. Your time is precious, and you should never choose to pursue a certification…

