Atria Logic Asic Design Verification Engineer Interview Questions and Answers

Q1. How to predict if a 32 bit number is divisible by 8, draw a circuit using gates
Ans. 
To predict if a 32 bit number is divisible by 8, design a circuit using gates.
• Use a circuit with AND, OR, and NOT gates to check if the last three bits of the number are all zeros.

• If the last three bits are zeros, then the number is divisible by 8.

• For example, if the 32 bit number is 11010000, the last three bits are zeros, so it is divisible by 8.
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Q2. Various verilog scripting questions
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Q1. Design of mux and ff
Ans. 
A multiplexer (mux) is a digital circuit that selects one of several input signals and forwards it to a single output. A flip-flop (ff) is a type of latch circuit that stores a single bit of data.
• Mux design involves selecting one of multiple input signals based on a control signal

• FF design involves storing a single bit of data using a clock signal

• Mux can be implemented using logic gates like AND, OR, and NOT gates

• FF ca...read more
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Q2. Basics of sv n verilog
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Q3. Sta question about timing violation
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Q4. Thesis related question
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Q5. Some basic design question
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Q1. Write code randc behaviour
Ans. 
randc behavior generates random complex numbers with specified distribution
• Use randc to generate random complex numbers

• Specify distribution using arguments like mean, variance, etc.

• Example: randc(10, 1, 2) generates 10 random complex numbers with mean 1 and variance 2
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Q2. Functinal coverage
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Q3. Code coverage related questions
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Q4. Monitor and scoreboard connections
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Q5. Project related questions
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40 aptitude qns and some mcqs on basic programming

Q1. I was asked to write two sum, palindrome function and merge sort code in whatever language I'm comfortable in
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Q2. Two sum- return true or false
Ans. 
Given an array of integers, determine if there are two numbers that add up to a specific target.
• Iterate through the array and store each element in a hash set.

• For each element, check if the difference between the target and the element exists in the hash set.

• If the difference exists, return true; otherwise, continue iterating.

• Example: nums = [2, 7, 11, 15], target = 9. The function should return true as 2 + 7 = 9.
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Q3. Merge sort function code
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Q4. Palindromic string or not
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