There's a new practice exam here for you now, and I'll have a new Video Boot Camp on this exam's subject for you later today!
Before we get to today's practice exam, just a quick preview...
.... later this month, I'll release my all-new CCNA and CCENT practice exam!
I've been asked to write a practice exam for years -- and here it is!
It's not "just another practice exam" - it's a true training experience.
Video questions, voice questions, exclusive training videos -- the works, and for a LOT less than other practice exams!
When it's released, my blog readers get THE lowest price!
All of today's questions deal with the following Cisco command line output.
Click on the image to enlarge, and let's get started!
1. What command displays that output?
2. Right now, all of the values are at zero. (But you knew that.) When the Frame Relay connection is working correctly, which two of those values should you expect to see increment?
3. There's one particular counter in that output that would indicate a problem if it's incrementing. Which counter is that?
Answers right after this brief message!
... or you can be wise and keep hitting your studies now.
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Now let's get to those answers....
1. That's the output of a very important Frame Relay troubleshooting command, show frame-relay lmi.
2. When all is well with the LMI and there's no mismatch, you should expect to see both counters on the next-to-last line increment -- num status enq. sent and num status msgs Rcvd.
3. Timeouts are rarely a good thing, and they're really bad here. If the Num Status Timeouts counter starts incrementing, that means we have an LMI mismatch and the line protocol is going to go down very shortly.
Be sure to watch the video in this post for a lab on live Cisco routers so you can see all of this in action -- I'll post that video later on Tuesday. See you then!