#1 Study, #2 pass, #3 eat cake!
When I did my certifications I was from a techie background and I did complimenting certificates for that.
I already had my CCENT, CCNA and CCNP certifications.
When I did mine I did it as part of a IT security group of certificates, I took about 6 months, but it was part time (evenings/weekends), and I did a few in that time frame.
Since curriculum overlaps a lot I figured I would take 4 certifications with little extra effort.
Continue reading: www.quora.com/What-is-Step-For-Certified-Information-Systems-Security-Professional-CISSP/answer/Thor-Pedersen-4