Microsoft Sr. Network Engineer interview questions

Applied thru LinkedIn, got a call after 3 months, 3 different staffing recruiters called & finally setup a 1 hrs technical phone screen. then called for onsite. Morning 8 AM with recruiter 9 AM - 1st technical round 10 AM - 2nd technical round 11 AM - 3rd technical round 12 PM - 4th with Hiring manager 12:45 PM - 5th technical lunch round 2:30 PM - 6th round (As appropriate) with program manager 3:30 PM - 7th round (As appropriate) with Director 4:30 PM - 8th round (As appropriate) with peer director finally out of office by 5:30 PM