Hello all. how often does Cisco update these blue prints. Im particularly interested in how often they update the required lab equipment and IOS. I noticed that we are at ver3.0 and candidates now need to train using this blue print.
I am in the initial stages of preparing for the CCIE Voice exam and would like to know if this blue print will be around in the next 2 years. I need to know that the equipment I buy now, and all my preparation will still be relevant when I'm ready to take the test in 2 years.