Is it possible to take CDS 110b without taking CDS 110a?

CDS 110a covers basic control concepts in state space and frequency domain. CDS 110b covers optimal control, stochastic processes, Kalman filters. The homepage for last year's class is here. You need to have a good grasp of the topics introduced in CDS 110a before taking CDS 110b, but if you have had a course covering the topics in CDS 110a, it is not problem to jump straight into CDS 110b.