Cisco has made changes to ACL rules and features as IOS versions have been released, so you will find that what applies to 12.3, for example, may not apply to 12.4. I’ll explain the main upgrades as we progress in this lesson. You will be tested on IOS version 15.X in the exam. ...
Just FYI, in order to pass your CCNA exam, you need to learn subnetting and do it proficiently. However, binary method of doing subnetting is one of 2 methods. In my opinion, decimal way of doing subnetting is faster, more convenient and efficient way. Binary way adds extra step of conv...