I looked ahead at Code.org's 10-problem assessment so I knew that I would have to bring in additional classroom activities around Hex conversions latency/bandwidth and "Why Binary", so my students ended up doing well - most scores were 7 to 9. In general, though, I liked the types of problems and the wording of the code.org assessment, but agree with others in the need to increase these assessments to about 20 questions and to make sure that they correspond to the objectives of the previous lessons (obviously changing the lessons instead of the assessment is an option as well). Being a first time AP Course, I struggle with the level at which this course should be taught. Seeing AP-like questions is quite helpful to me and the students. I also really liked the ability to unlock the questions, give the assessment in class, and re-lock it.
Thank you, @krthibodeaux. Your questions were excellent as well and would make a great addition/supplement to the online assessment.