Introduction to Amazon ElastiCacheIr al Laboratorio
Out of date there is no option for network & security and now security group starting on step 17
You go through the mechanics of creating an connecting to an elasticache cluster fine, but at the end of it you don't have any clue as to what elasticache actually does. It would help to see it actually in action rather than just run a few random commands via telnet to it.
Would be nice to actually do something with the cache to demonstrate it. Also - instance type in PDF is not available for selection in the console.