I think you're referring to the "mini-quizzes" we had at the beginning of each section. I didn't link them from the course website, in case a future offering of 190m wanted to reuse the same ones. Here's a list of links to all the mini-quizzes we offered:

http://www.cs.washington.edu/education/courses/cse190m/11su/sections/2/miniquiz1.pdf
http://www.cs.washington.edu/education/courses/cse190m/11su/sections/3/miniquiz2.pdf
http://www.cs.washington.edu/education/courses/cse190m/11su/sections/4/miniquiz3.pdf
http://www.cs.washington.edu/education/courses/cse190m/11su/sections/5/miniquiz4.pdf
http://www.cs.washington.edu/education/courses/cse190m/11su/sections/6/miniquiz5.pdf
http://www.cs.washington.edu/education/courses/cse190m/11su/sections/7/miniquiz6.pdf
http://www.cs.washington.edu/education/courses/cse190m/11su/sections/8/miniquiz7.pdf
http://www.cs.washington.edu/education/courses/cse190m/11su/sections/9/miniquiz8.pdf

The feedback I got from TAs was that students felt neutral to mildly positive about the quizzes, which I think is good for something called a "quiz." I got the feeing that the quiz forced students to come prepared, start thinking from the beginning, and become more engaged in discussion.

However, regarding the questions themselves, I think after a while TAs started to feel like I was rehashing the same question every week. They usually weren't overtly similar, but the answer to each question almost always involved the separation of duties between the client and server—which is a theme that people seemed to tire of. (I'm not sure if it was TAs, students, or both who felt that.) My goal was to ask easily-answerable, conceptually-important, holistic procedural questions about "the way things work," which I guess just lends itself to talking about the client-server paradigm a lot.

At any rate, I believe the quizzes also helped with section attendance, but you may want to verify that with last year's TAs. To distribute them, TAs either made printed copies of the handout, or projected it and had students write a response on their own paper.

In all, the mini-quizzes seemed to be a net positive change, so I'm pretty sure I'd do them again. Let me know if you have any other questions!

Thanks,

Morgan