hi every one i have confirmed to someone who is staff of cisco ,there are only two labs in cisco pools now its k1 and k2 there is no other lab right now in cisco pool ,so dont wast your time for k3 k4 k5 ,.... there are only updates of k1 and k2 or cert 1.1 ,2.1 , and make your solution by yourself because these venders have only 60 % coreect .