Your colleague would be wrong. I've passed multiple exams this way (they allowed Internet access because the prof thought the same way). You can very likely an

Your colleague would be wrong. I've passed multiple exams this way (they allowed Internet access because the prof thought the same way). You can very likely answer around 1/4th of the questions immediately with less than passive participation in the course, so for the remaining 60 questions you'll get two minutes per question, which is completely manageable if you type and read fast enough. Multiple choice questions are universally terrible and lazy, and should not be more than a small part of the exam mostly meant to provide easy points.