Verification Engineer Interview Questions

2,559 verification engineer interview questions shared by candidates

Puzzle: 2. There is a box with 13 W and 15 B balls. There are also 28 B balls on the outside. At each turn, two balls are randomly and simultaneously taken out of the box. If the balls are of different color, the W ball is returned to the box. If the balls are of the same color, they are removed and a B ball from outside is put into the box. After some turns, only one ball remains in the box. Can you deterministically tell the color of this ball?
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Verification Engineer

Interviewed at NVIDIA

4.4
Dec 6, 2023

Puzzle: 2. There is a box with 13 W and 15 B balls. There are also 28 B balls on the outside. At each turn, two balls are randomly and simultaneously taken out of the box. If the balls are of different color, the W ball is returned to the box. If the balls are of the same color, they are removed and a B ball from outside is put into the box. After some turns, only one ball remains in the box. Can you deterministically tell the color of this ball?

Interesting question about memory aliasing. You've two APIs write(addr, data) and read(addr, &data) just using these two APIs write an algorithm to identify one of the internal signals that has been shorted. You've no access to internal signals or the interface signals (black box verification)
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Verification Design Engineer

Interviewed at NVIDIA

4.4
Nov 20, 2019

Interesting question about memory aliasing. You've two APIs write(addr, data) and read(addr, &data) just using these two APIs write an algorithm to identify one of the internal signals that has been shorted. You've no access to internal signals or the interface signals (black box verification)

About work experience, Implement randc using rand, SV questions, Verilog design question, Fifo depth question, Scoreboard implementation of a design, MESI, Linked list traversing question. Looks like they need C++ even if the position requires SV/UVM only.
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Senior Verification Engineer

Interviewed at NVIDIA

4.4
Sep 3, 2020

About work experience, Implement randc using rand, SV questions, Verilog design question, Fifo depth question, Scoreboard implementation of a design, MESI, Linked list traversing question. Looks like they need C++ even if the position requires SV/UVM only.

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