I applied in-person. The process took 1+ week. I interviewed at US Navy
Interview
There wasn't one. Just take the ASVAB and then meet with a guy about possible jobs. You may have to take an additional test for advance placement jobs. Not much to worry about.
Interview questions [1]
Question 1
It wasn't difficult. You just had to be conversational and explain to the guy what you have interest in. If you did well on the ASVAB then they will likely steer you toward Nuclear or intelligence jobs.