Cisco CCNA Certification Exam Tutorial: The OSI Models Physical Layer
To pass your CCNA exam and earn this coveted certification, you’ve got to master the seven layers of the OSI model and what each layer does. For those of you taking the two-exam path, you can expect quite a few...
Cisco CCNA Certification Exam Tutorial: Variance And Unequal Cost Load Balancing
To pass the CCNA exam, you’ve got to know how to work with IGRP and EIGRP unequal-cost load balancing. You may not see much IGRP in production networks anymore, but you’ll see a lot of EIGRP, and...
Cisco CCNA Certification Exam Tutorial: RIP Details You Must Know
RIP isn’t exactly the most complex routing protocol on the CCNA exam, but that makes it easy to overlook some of the important details you must keep in mind in order to pass the exam! To help you review for the...
When you’re preparing to pass the CCNA exam and earn this coveted Cisco certification, you’ve got to be totally prepared for the many kinds of binary and subnetting questions Cisco may throw at you. You also have to be familiar with the different manners in which a subnet mask can...
To pass your CCNA exam and earn this coveted certification, you must understand the details of port-based authentication. This knowledge has a great deal of value in production networks as well, since this authentication scheme is regularly implemented. Let’s take a look at this...
CCNA certification demands that you master the basics of OSPF, and for many studying for the CCNA exam, their first exposure to OSPF is a hub-and-spoke configuration. That’s a tough way to get started, because a hub-and-spoke configuration built over an NBMA technology such as Frame Relay...
Cisco CCNA Certification Exam Tutorial: Keep Your Most Important Appointment
Imagine this. You have an appointment with a client to work on a server or router install. A few minutes before you’re scheduled to be there, you decide there’s something really good on TV...
Cisco CCNA Certification Exam Tutorial: ISDN Details You Must Know
CCNA exam success depends partially on knowing the details of ISDN, and there are plenty of them! To help you review for your CCNA exam, here are a few ISDN details that you must know on exam day. (They help in the real...
Cisco CCNA Certification Exam Tutorial: Frame Relay DLCIs And Mappings
Passing the CCNA is tough, and one of the toughest parts is keeping all the acronyms straight! Frame Relay has plenty of those, and today we’re going to examine what DLCIs do and how they’re mapped on a...
Cisco CCNA Certification Exam Tutorial: 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...
Cisco CCNA Certification Exam Tutorial: Distance Vector Command Review
Part of studying for CCNA exam success is keeping all these new commands straight in your head! And let’s face it, there are a lot of commands you need to know in order to pass the CCNA exam and earn that...
The most common method of configuring ISDN is with dialer maps, but dial information can also be configured on a logical interface. To pass the CCNA exam, you must know how to configure and troubleshoot both dialer maps and dialer profiles.
Dialer Profiles allow different dialing...