IT Certification and Training Blog

ICMP Port Numbers

Posted by Andrew Messier on Aug 24, 2017 11:20:34 AM

Various application layer protocols listen on specific ports. For example, when you want to visit a website, the HTTP request that exits your computer is destined for TCP port 80 on the remote server. The source port on your computer is an arbitrary ephemeral port. The request is processed on the server, and data returns to your computer destined to the previous source port where your web browser (probably Chrome) is ready and waiting.

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Tags: ICMP Port Numbers

Cisco Live 2017 - What Makes NetSim Different

Posted by Andrew Messier on Jun 20, 2017 3:46:32 PM

With CiscoLive 2017 quickly approaching, I'm looking ahead and reviewing my notes from last year. One question we frequently receive throughout the conference is, "What makes NetSim different than ____?" or, "I have real equipment, so why would I use NetSim?" We enjoy answering this question because people normally walk away with a better understanding of our product and plan to use it for themselves or for their students. My goal is not to knock the other options, because there are a lot of great resources out there. Instead I aim to be as informative as possible to help you make a smart buying choice.

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Tags: NetSim, Andrew Messier, Cisco Labs, GNS3, Cisco Live 2017

How to Choose Your Path to the CCNA

Posted by James Hanback on Mar 2, 2017 11:09:33 AM

Just like the Robert Frost poem, two paths diverge in the thicket that is your study for the Cisco Certified Network Associate (CCNA) Routing and Switching certification. Along one of those paths, you first earn the Cisco Certified Entry Networking Technician (CCENT) by taking the Interconnecting Cisco Networks Devices 1 (ICND1) exam, or exam number 100-105. After more study, you can then opt to take the ICND2 (200-105) exam to earn the CCNA certificate.

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3. Microsoft Exams’ Inner Mechanics

Posted by Val Bakh on Feb 2, 2016 11:42:47 AM

How to Become a Microsoft Certified Professional

3.5. How to Pass a Microsoft Exam – Part 2

This is Part 2 of the final blog post in this series. In Part 1 , we discussed a strategy for the exam-taking process. Now we’ll talk about a few snags that you might have to overcome during the exam. Each of the remaining sections presents a specific type of problem and provides recommendations on what you should do if you encounter it.

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Tags: exam tips, Val Bakh, Microsoft, pass microsoft exams

NetSim 10.10 Released

Posted by Andrew Messier on Nov 10, 2015 2:26:33 PM

Hi Everyone

NetSim 10.10 was released today. This update includes 10 new CCNP labs for GLBP, BGP, EIGRPv6, and OSPFv3. Minor document updates and bug fixes are also included. This release wraps up our coverage of BGP. We expect one more release covering a few more GLBP topics to be delivered next, We now have labs covering of every topic in CCNP. A complete list of each new lab is below:


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NetSim 10.8 Released

Posted by Andrew Messier on Aug 6, 2015 1:39:00 PM

Hi Everyone,

NetSim 10.8 was recently released. This update includes 11 new labs and minor document updates to existing content.

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3. Microsoft Exams’ Inner Mechanics

Posted by Val Bakh on Jul 28, 2015 1:32:00 PM

How to Become a Microsoft Certified Professional

3.5. How to Pass a Microsoft Exam – Part 1

This is Part 1 of the final blog post in this series, where everything we’ve discussed in the previous blog posts should come together. In Part 1, we’ll go over the exam-taking process and try to make sure that the time and effort you’ve spent preparing for the exam are put to good use.

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Tags: practice tests, Microsoft certification, Boson Microsoft exams, passing certification exam

NetSim 10.7 Released, Features New TSHOOT Labs

Posted by Kelson Lawrence on May 22, 2015 10:55:00 AM

By James Hanback

If you’re like me, the first thing you want to do when you get your hands on a new toy or technology is to toss the instructions aside and figure out on your own what you can make it do. Sometimes the best way to figure out something new is to find ways to apply it to your existing knowledge or skill set. I remember the first time I tinkered with a Doom level creator way back in the 90s. Without seeking help or tutorials, I immediately started trying to build a Doom-world replica of the interior of my house.

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Tags: James Hanback, NetSim 10.7 Released, Features New TSHOOT Labs

3 Microsoft Exams’ Inner Mechanics

Posted by Kelson Lawrence on May 13, 2015 10:07:00 AM

How to Become a Microsoft Certified Professional

3.4. How to Work with Boson’s ExSim-Max for Microsoft Products

In the two preceding blog posts of this series (Section 3.3 Part 1 and Part 2), we discussed how to identify legitimate practice-exam products and recognize braindumps. Another important issue in those posts was how to determine which legitimate products are better than others. In this post, we’ll take a brief tour of Boson’s ExSim-Max for Microsoft line of products.

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Tags: Val Bakh, Exam Preparation Options, Boson Microsoft exams, how to become a microsoft certified professional, ExSim-Max

NetSim 10 Update | 10.6 Released

Posted by Kelson Lawrence on Apr 10, 2015 9:32:00 AM

By Andrew Messier

NetSim 10.6 has been released. This update includes 3 new CCENT labs for configuring basic network services and troubleshooting Domain Name Systems (DNS), 5 new CCNA labs for troubleshooting Access Control Lists (ACLs) and Frame-Relay, and minor output updates to several lab documents. We added support for configuring interfaces with non-contiguous ranges, applying ACLs to Virtual Terminal Lines (VTY), and configuring Network Address Translation (NAT) on subinterfaces. Finally, this release includes bug fixes for NAT, static routing, Address Resolution Protocol (ARP), and Enhanced Interior Gateway Routing Protocol (EIGRP) named-mode. A complete list of all eight new labs is below:

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Tags: ccna labs, NetSim 10.6 released, ccent labs