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3,654 verification interview questions shared by candidates

Linked List traversal, Fibonacci algorithm (basic and recursive), the difference in complexity between the basic and recursive. Relatively straight forward. Second phone screen: "A person on a stairway needs to get from the bottom of the stairs to the top in the minimum number of steps, no, how possible combinations of steps, no, I don't think I explained that well...what if they took could only take one step forward for every"...really? is this even a real question? somehow the answer was yet again a Fibonacci sequence question. Next was reversing a singly linked list - oops, you can't use any references (!?), or another linked list.. Frustrating to have gotten the "B" team interviewer
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Design Verification

Interviewed at NVIDIA

4.4★
Feb 7, 2017

Linked List traversal, Fibonacci algorithm (basic and recursive), the difference in complexity between the basic and recursive. Relatively straight forward. Second phone screen: "A person on a stairway needs to get from the bottom of the stairs to the top in the minimum number of steps, no, how possible combinations of steps, no, I don't think I explained that well...what if they took could only take one step forward for every"...really? is this even a real question? somehow the answer was yet again a Fibonacci sequence question. Next was reversing a singly linked list - oops, you can't use any references (!?), or another linked list.. Frustrating to have gotten the "B" team interviewer

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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