In Jan 2001, I certified myself as a Cisco Certified Network Associate (CCNA), taking the 640-507 exam. While the passing score was: 822, I scored 903 out of a possible 1000.
My CCNA certification expired in Jan 2004, and it's been about 9 months since the expiration.
While considering to recertify myself as a CCNA again, I opened up a reference document on 640-801, which is the updated exam for CCNA ICND, and realized that I've lost nearly all of my networking knowledge already.