I havent taken the CCNA in over 4 years... Mine is actually expired now, I think the cert is good for 3 years... Anyways I know the test has changed A lot since then... I think they added a router configuration simulation... When I took it, the test was only 70 question, multiple choice.
I took a 4 semester class with lot of hands on exp... I also took a lot of online prep test, surprisingly there were a lot of questions on those prep tests that were on exam... I think I can still log into my Cico.netacad account... Havent tried in about a year but last year I tried sometime even though my class had been over for 3 years and my log on still worked.. I could take all the tests and read all the capters... There was even a download for a Flash program that simulated a router lab. I guess my advice would be the following:
Download every test you can online and take them over and over again... Read the explanations on the answers... This does help. I think a good site was mcmcse.com for online tests.....
Hope that helps.