Wendell's CCENT Skills Blog

A few weeks back, my daughter had a day off from school, and was sitting with me at the coffee shop while I was writing up a blog post about Frame Relay. For fun, I let her help me by typing while I dictated the post. Unknowingly, she piped in doing some active listening – [...]

So this guy tells me that to help him study, he connected my book to his router, and sends me this picture: Well, OK, they really didn’t connect the book, even though it looks like it. But the picture is kinda cool, and does make a great backdrop for this post. Today’s post kicks off [...]

Today I’ll pick up the explanation of the most recent question, the one regarding what happens when you issue a tracert command to what happens to be a subnet broadcast address. This post picks up where my previous post left off – check that out to find out why answers A and B are incorrect.

Hi folks, I posted a new question in the CCNASkills blog today, related to the one from last week. Basically, what happens when a router learns of three subnets with subnet ID 10.1.2.0, with 3 different routing protocols, but with different masks? It’s a little outside the scope of ICND1 in my opinion, but worth [...]

Hi folks, I made a techie topics video related to this week’s question. The short answer to the question is that the router makes the choice of best route based on administrative distance. The video shows the basics, with the same scenario as the question. I’ll list a longest answer in a few days (probably [...]

Here’s the letter answer and explanation for last week’s CCENT passwords question, below the fold as usual to hide the answer. Follow up as needed. Thanks!

Hi folks, I ended up creating a video to explain the answer to last week’s question, which was about choosing the shortest mask that would not create overlapped IP subnets. Literal answer and a link to the video below the fold. Questions welcome!

Hi folks, Today’s question is open ended: What masks work? What masks cause no problems? The questions start with a network diagram and some suggested IP addresses for the router LAN interfaces. The WAN interfaces already have IP addresses, and they use a /24 mask, and cannot be changed. But for three LAN interfaces, each [...]

Here’s a link to the question, and the answer is below the fold. Enjoy!

Here’s a new CCENT question to consider. It’s a bit long to read, but it reviews some unrelated concepts, so hopefully the length won’t get in the way. As usual, if you post ideas, leave out your answer letters from the title line to avoid spoiling it for others. Enjoy! Question is below the fold.