I want to take my CCIE R & S Lab.Can you please guide me the materials i have to go through to pass the lab in first attempt
There are several leading vendors in the CCIE lab game. Internetwork Expert, IPExpert, and CCBootCamp are 3 that come to mind immediately. You probably can't go wrong with any of them. I think they all offer lab samples, so I would go to each vendor, check out their samples, and pick the one that "fits" you best.