I am currently studying for the CCENT exam. I have been suing CBT Nuggets as well as the CCENT/CCNA ICND1 Office Exam Certification Guide.
I am confused as to what I need to know as far as subnetting goes. In the CBT Nuggets videos I was taught how to solve three types of problems:
1) Subnetting when given a required number of networks
2) Subnetting when given a required number of clients
3) Given an IP address & Subnet Mask, finding original network range (reverse engineering a subnet problem)
In the official exam certification guide book the presented material goes way beyond those three types of problems, including knowing how to/memorizing the powers of 2, ie: 2^10 power, how many subnets and number of hosts per subnet, ext.
My question is CBT Nuggets CCENT training incomplete, or does the exam book provide more than the required information? Specifically knowing the chart of 2^x (two the number of hosts or subnets) which seems a little excessive since we can't use calculators.
Any help would be greatly appreciated. I have never taken a Cisco exam before.