It depends when you took your online course.
If you enrolled after May 2010, you may have taken lessons in Connected Home and the newer SWiM devices such as SWiM-16 and SWiM-32, but there are lots of other updates and changes that you should be aware of, such as the AIM meter. We recommend, at a minimum, browsing through SB201 (watch for the new Connected Home lesson), SB 202 (note the new authorized components), SB 203 (contains new materials on lockboxes and other wiring updates), and 205 (new troubleshooting technquies using the new AIM meter and EIV Plus). In addition, you should definitely work through SB204 (AIM meter) before reviewing SB205.
If you enrolled before 18 May 2010, we recommend working all the way through SB201, 202, 203, 204, and 205. You will find them to be useful review and there is new material throughout all the course. If you only took the Connected Home supplement and not the full MFH-2 or D2A course, you definitely
need to take all five of the new modules.
The most economical way to review these courses and recertify is to purchase an Annual Subsciption. If you are a past MFH-2 or D2 Advantage student, you will get access to all five of the new D2 Advantage modules (SB 201-205), and your recertification exam is included.