The process took 1 day. I interviewed at Capital One in Feb 2009
Interview
I went about five minutes early to chat with the interviewer and he seemed relaxed. The case was about call center improvement when they had two kinds of customer service agents (regular and advanced). He pointed out simple math errors I made but when I really got stuck conceptually, he didn't really help much. The total interview took about 30 minutes.
Interview questions [1]
Question 1
How do you improve a call center with two different types of customer service agents?
I applied through a recruiter. The process took 3 weeks. I interviewed at Capital One in Jan 2008
Interview
Start with a link that was sent via email to an online assessment test. The online assessment test reminded me of my GMAT math and verbal, so preparation using those text books should be helpful. From then, contacted for an on-site interview.
I didn't get an offer after that..