Answer to Question: Destination MAC Only?

Answer to Question: Destination MAC Only?

🕔12:05, 14.Dec 2016 The previous post posed a question that appeared straightforward – but one that set up a couple of the more common mistakes that people make with the subject of Layer 2 frame forwarding.  The goal was twofold: yet another practice Read Full Article
Switch Forwarding Question: Destination MAC Only?

Switch Forwarding Question: Destination MAC Only?

🕔12:05, 13.Dec 2016 How does a Layer 2 switch choose where to send a frame? Does it think about more than the destination MAC address? One of the common mistakes videos in the new “CCENT ICND1 100-105 Exam Prep LiveLessons” product talks about Read Full Article
A: Which IPv4 Static Routes Could be Useful?

A: Which IPv4 Static Routes Could be Useful?

🕔09:05, 12.Oct 2015 The previous sample question gave us lots of example static IPv4 routes to think about. The answer and explanation are below the fold, as usual. Ask'em if you've got'em! Answer Letter C   Explanation The first two parameters on the ip Read Full Article
Q: Which IPv4 Static Routes Could be Useful?

Q: Which IPv4 Static Routes Could be Useful?

🕔09:05, 8.Oct 2015 This week's sample question is about static IPv4 routes. The question makes you think not only about syntax, but also about the meaning of the parameters of the ip route command. The wording is a bit tricky because I've attempted Read Full Article
A: Which ARP and Where

A: Which ARP and Where

🕔12:05, 4.Oct 2015 Host A web browsers to server E, which sits on a different subnet. Who ARPs for whom, and where? Check the question, pick your answer, and come back here to check your answer and see the explanation. Letter Answer B Read Full Article
Q: Which ARP and Where

Q: Which ARP and Where

🕔09:05, 1.Oct 2015 Are you an #ARP pretender? ARP is simple. At the same time, ARP can be used as both a testing tool and interview tool determine whether someone really knows how networks work, or if they just read the basics in Read Full Article
A: A Port Security Question

A: A Port Security Question

🕔09:05, 7.Sep 2015 You know the drill. Check this earlier port security question, and then come back here to check your answer and logic. The answer is below the fold. Enjoy! Letter Answers: B, C, D   Explanation To answer this question, you can Read Full Article
Q: A Port Security Question

Q: A Port Security Question

🕔09:05, 3.Sep 2015 The  lobby has a live Ethernet port: it's time to lock that port down with port security. As usual, this post poses the question, and the next post (which will be linked at the bottom of this one once it's there) Read Full Article
A: LAN Switching Logic

A: LAN Switching Logic

🕔09:05, 31.Aug 2015 It seems simple... and then you're sitting at the #CCENT or #CCNA exam. Where does that Ethernet frame really go? I posted a question about LAN Switching a few days back. Here are the answers! Post with any related clarifications or comments. Read Full Article
Q: LAN Switching Logic

Q: LAN Switching Logic

🕔09:05, 27.Aug 2015 To get your #CCENT and #CCNA, you must have the skill to predict how switches forward Ethernet frames. This skill goes beyond a simple generic list of actions like forward/filter/flood. This next question gives you another chance to build those Read Full Article

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