There were 2 rounds of interview plus a phone interview before that. They asked simple logic design questions and allowed you to chat a little. The questions were not difficult at all. The phone interview lasted about 30 minutes to 1 hour. The on-site interview lasted half a day.
How to write Verilog code for a state machine.
How to implement NAND and NOR with muxes.
The following metrics were computed from 5 interview experiences for the Nvidia Engineering role.
Nvidia's interview process for their Engineering roles is incredibly easy as the vast majority of engineers get an offer after going through it.
Candidates reported having good feelings for Nvidia's Engineering interview process.