Agile Project Manager Interview
"name the 3 types matrices used to manage risk in a project using information taken from PMBOK (Project Management Book of Knowledge) "If you have 5 projects running concurrently, describe a single matrix that would easily show how each of those projects were doing"
Why is an Agile Project Manager interview based on the PMBOK? That's a really, really bad sign. :)
For the second question, I'd probably use either a cost/schedule variance chart... since you can't assume the same budget or schedule for any of the projects, variance against plan would likely be the best way to go.
For both of these questions, I told them if there was a single correct answer, I didn't know it...but I walked them through how I would handle each question.