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Senior hardware engineer Interview Questions


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Describe a function to check if an integer is a power of 2.

6 Answers

For an integer n: If n is less than 1, return false. If the bitwise & of n and n-1 is 0, return true. Otherwise, return false.

Write the number in binary and count the number of ones in that.If the number os ones is only 1 then it the number is indeed a power of 2

first check if no is 1 then return false else write the number in binary and then check number of ones in that.if only one 1 is there then its a power of 2

If you have a 10W light bulb and a 100W light bulb, and you connect them together, which one will be brighter?

7 Answers

Describe a circuit that implements the following truth table using only NAND gates. A B OUT 0 0 1 0 1 1 1 0 0 1 1 1

7 Answers

There are 5 bowls with 100 candies each. In 4 bowls, all of the candies are 10 grams each. In 1 bowl, all the candies are 9 grams each. Using a digital scale, how can you determine which bowl has the 9 gram candies by using only 1 weighing?

2 Answers

What is a time domain test instrument and what is a frequency domain instrument? I've never heard of these terma before.

2 Answers

Not the most difficult question but I found this question interesting. Write a piece of code that allows you to detect if the machine you are running the program is little Endian or big Endian memory structure.

2 Answers

Non-trivial sender-receiver type of coding problem.

2 Answers

How many ping pong balls fit in a 747

2 Answers

Do you have firmware development experience.

1 Answer

Parallel Computer architecture, -Gave the MP structure and then asked How would you maintain coherency

1 Answer
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