pretty easy and well done, they are very kind. I would say it focuses mostly on behavioral, and your personal experience. The rest is something you can definitely learn in person.
I applied through an employee referral. The process took 2 weeks. I interviewed at Mastercard (Saint Louis, MO) in Feb 2016
Interview
Phone interview with the hiring manager - mostly an informational interview, asked what past jobs I'd had, educational experience, extra-curricular activities. More conversational than hard skills or tests. As an intern, I didn't need too much former work experience, but needed to speak to how school, sports, and volunteer work shaped my skill set.
I applied through university. The process took 4 weeks. I interviewed at Mastercard (Purchase, NY) in Apr 2011
Interview
Studied abroad during application and interview process. Heard back in about one to two weeks for an interview. Was given a phone interview as an alternative instead since I could not physically be there for the in person interview. Only 1 round. Behavioral questions. General "Tell me about yourself" or "why do you want to work here" questions. Interviewed by HR who was nice. Interviewer hinted that I most likely would have gotten the job but needed to get back to me to be sure. Received the offer about 1 - 2 weeks later. Overall, positive interview experience. However, quite a bit of waiting for HR to respond. They may tell you they will get back to you by a certain date, but it will likely take longer and you may need to remind them.
Interview questions [1]
Question 1
Tell me about a time when you were in a group and there was an issue. Describe the problem and what actions you took, as well as the impact of your actions.