Cisco introduced simulation type questions into the CCNA exam, and since then it has become crucial that CCNA candidates have some practice on configuring Cisco devices before attempting the test. This is because the simulations probably carry a large number of points for score computational purposes. There are 2 well-known ways to get this practice - get some used Cisco equipment or hope that you employer has a lab you can practice on.
There is now another option, that is to use a CCNA virtual lab product. Here are the pros and cons of using a router simulator for your exam preparation.
Why You Should Use One
1. It is portable - Using a CCNA virtual lab, you are able to practice anywhere on the go if you install the software onto a laptop. Compare this to a home lab, where you are only able to practice when you are physically near the lab equipment.
2. Low cost - Cisco router packages can get very expensive and can cost $1000 or more, depending on your choice of equipment. CCNA virtual labs are much cheaper, costing only $100 to $150. This is a more cost effective option.
3. Included Lab Exercises - The virtual lab products usually provide guided exercises together with the simulation to help you master the required topics for the CCNA. It's like having an instructor there with you to guide you along.
4. Good supplementary aid to books - The lab usually ties in with what is taught in a CCNA certification book. If you purchase both the book and the lab, you will have a comprehensive CCNA preparation package.
Disadvantages
1. Not a full simulation - The simulator might have problems simulating the full set of Cisco IOS commands and does not really function as a real router or switch. It only supports all the commands you are required to know for the CCNA exam.
2. May not be usable past CCNA - If you are intending to study and pursue further Cisco certifications like the CCNP, the Cisco IOS command set supported by the CCNA simulator will definitely not be sufficient.
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