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CCENT Answer 102: Switch MAC Learning

February 11, 2013

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Today’ post gives the letter answer, and explains why, for this latest #CCENT question. The question focuses on switch learning, with a little layer 3 weaved in. Don’t read here until you try the question!

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CCENT Question 102: Switch MAC Learning

February 8, 2013

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Here’s another #CCENT question that kicks up a small notch. PC1 successfully connects to a web server. What MAC address table entries are learned? To answer, you have to think about not just layer 2, but also layer 3, and even a tad bit about layer 4.

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Answers: Switch Forwarding and What Happens Next

November 19, 2011

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This post discusses the answers to the questions listed in the previous post. But what makes this question so challenging for someone headed for the ICND1 exam? Three things, in my opinion: 1) Application: it requires the application of concepts to a scenario that was not specifically listed in the book. 2) Forwarding w/ Multiple [...]

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Question: Switch Forwarding and What Happens Next

November 16, 2011

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Today’s post lists a question that comes with the new ICND1 Official Cert Guide from Cisco Press. Here’s the story. I received a reader comment about this question, and I thought, wow, this one has enough little ins and outs to make a good blog discussion topic. Long story short, my friends at Cisco Press gave [...]

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