One of the most confusing parts of beginning your Cisco studies is keeping all the cable types separate in your mind, and then remembering what they’re used for. This often occurs when a CCNA or CCNP candidate starts putting together their own home practice lab, and they suddenly realize that they have the equipment [...]
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.
When a command is mistyped on [...]
To pass the CCNA exam, you have to be able to write and troubleshoot access lists. As you climb the ladder toward the CCNP and CCIE, you’ll see more and more uses for ACLs. Therefore, you had better know the basics!
The use of “host” and “any” confuses some newcomers to ACLs, so let’s take a [...]
When you’re studying for the BSCI exam on the way to earning your CCNP certification, it’s safe to say that BGP is like nothing you’ve studied to this point. BGP is an external routing protocol used primarily by Internet Service Providers (ISPs). Unless you work for an ISP today or in the future, you [...]
As a CCNA and/or CCNP candidate, you’ve got to be able to spot situations where Cisco router features can save your client money and time. For example, if a spoke router is calling a hub router and the toll charges at the spoke site are higher than that of the hub router, having the [...]
You may look at that feature’s name and think, “What is a BPDU Skew, and why do I want to detect it?” What we’re actually attempting to detect are BPDUs that aren’t being relayed as quickly as they should be.
After the root bridge election, the root bridge transmits BPDUs, and the non-root switches relay [...]
To pass the CCNP exams, you’ve got to master Quality of Service, and the first step in doing so is knowing the differences between the different QoS types.
Now this being Cisco, we can’t just have one kind of QoS! We’ve got best-effort delivery, Integrated Services, and Differentiated Services. Let’s take a quick look at all [...]
Whenever a Cisco exam version changes, there’s always a lot of chatter about it on the web. The CCNA exams are no exception.
One comment I see often goes like this: ” I hear Cisco is going to change Intro / ICND / CCNA exam versions soon, so I’m not going to start studying yet. [...]
When you’re studying for the CCNP certification, especially the BSCI exam, you must gain a solid understanding of BGP. BGP isn’t just one of the biggest topics on the BSCI exam, it’s one of the largest. BGP has a great many details that must be mastered for BSCI success, and those of you [...]
As a CCNP candidate, as a CCNA, and in getting ready to pass the BSCI exam, you may be tempted to breeze through your static route studies, or even skip them! That’s because static routes are easy enough to configure, and as long as you remember the syntax of the ip route command, you’re in [...]
