Today, i cleared BCMSN Paper. However, i have observed few things while doing Lab Questions in the exam. I require some clarification regarding these simulated base Lab Question in which i observe while executing some correct commands, it give me error, i execute command to copy the configuration but error window display with the message "can't use in this version". i just need to know why cisco don't allow correct command if somebody used. There should be some flexibility to build confidence in the candidat that what's doing is correct. Same is happened while executing state active command in the vlan config mode but error window display. I need some guidance from anybody b/c i used to appear to ISCW Exam so that to care of these thing as i assume it deduct the marks as well.