Case study will be given prior to interview and your recommendation on a solution will need to be presented during the interview process. Most likely done with the hiring manager.
Interview questions [1]
Question 1
Case study within the person's field - case study varies per interview
I applied through an employee referral. The process took 1 day. I interviewed at Crown Castle Fiber (Boston, MA) in Sep 2018
Interview
The interview process was just a simple conversation-based interview with 2 managers. The interviewers were very nice and willing to answer your questions. . . . . . . .