Having been on the interviewing end of a number of interviews, I definitely have found that these types of "quiz" questions ARE EFFECTIVE, to a point. The number of people who claim to know something, but actually don't, are astounding. You'd like to think that people are honest, but they are not.
The main issue is that of time. Interviewing people is an enormous time sync, and spending time to get to know them and their thought process is a complete waste if they don't know the material. Quiz questions can easily weed out the people who claim to know things but don't, and save you a lot of time.
However, quiz questions should not be the only way to determine if someone is good for the job, and you always want to delve deeper with other kinds of questions as well. You can also use the quiz itself as a jumping off point for deeper discussions, which give you insight into thought process, etc...
The main issue is that of time. Interviewing people is an enormous time sync, and spending time to get to know them and their thought process is a complete waste if they don't know the material. Quiz questions can easily weed out the people who claim to know things but don't, and save you a lot of time.
However, quiz questions should not be the only way to determine if someone is good for the job, and you always want to delve deeper with other kinds of questions as well. You can also use the quiz itself as a jumping off point for deeper discussions, which give you insight into thought process, etc...