You have 1000 wine bottles. Exactly one bottle is poisoned. A rat that drinks the poisoned wine will die within 1 hour. (Assume rats can each sip any number of samples once at the start.) Determine the minimum number of rats needed to identify which single bottle is poisoned in 1 hour.
What does the "static" keyword mean?
Tell me about linux internals and linux kernal. What is a heap and a stack? Difference between list and tuple in python. What is an zombie process, how do you deal with it? What is interrupt latency, race condition, context switch? Where do you see yourself in five years?
What happens if you write uint a = 1; a = a - 50;
How would you correct channel noise caused due to multiple paths?
i2c vs SPI
Conocimientos de QA de software. Conocimiento de lenguajes de programación, sistemas embebidos, VHDL.
What is the best sorting algorithm and why?
Q1: Given coordinates of queen and opponent on checkers board, see if queen can make a valid move against opponent (up, down, both diagonals). Q2: Rotate a 2D matrix "90 degrees" to the right. Rows are equal to columns. Q3: Given a 1D list, return the difference between the smallest and largest number. The smaller number MUST occur in the list before the largest one. If smallest is after largest, it's invalid. It tells you it's better to pass the two test cases even if time is not optimized.
most "difficult" was a discussion of an IO driver, embracing merits/demerits of implementation methods, including polled v's interrupt, OS impact, buffering, layering etc
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