Amvotech Solutions Interview Questions and Answers

Q1. DS Algo, Backend and DB
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Q2. Stack(DS) question and DB based questions
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Q3. Scaling (Horizontal, Vertical) with use cases
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Scaling refers to increasing capacity of a system. Horizontal scaling adds more machines, while vertical scaling adds more resources to a machine.
• Horizontal scaling involves adding more machines to a system to increase capacity

• Vertical scaling involves adding more resources to a machine to increase capacity

• Use cases for horizontal scaling include handling increased traffic or adding redundancy

• Use cases for vertical sca...read more
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Q1. Asked different variety of puzzles
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We have given 12 puzzles on hackerearth based on probability and statistics and have to solve in 45 minutes

Q1. There is a biased dice with the probability of 1 and 2 is 25% each. Find the probability of even number.
Ans. 
The probability of rolling an even number on a biased dice with 25% chance for 1 and 2 is 50%.
• The biased dice has a 25% chance for rolling a 1 and a 25% chance for rolling a 2, totaling 50% for odd numbers.

• Since there are only two odd numbers on a dice (1 and 2), the probability of rolling an even number is 50%.

• The probability of rolling an even number on a standard dice is 50% as well, since there are 3 even numbers o
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Q2. What is the pdf and pmf?
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PDF stands for Probability Density Function and PMF stands for Probability Mass Function.
• PDF is used for continuous random variables while PMF is used for discrete random variables.

• PDF represents the probability distribution of a continuous random variable.

• PMF represents the probability distribution of a discrete random variable.

• Example: PDF can be used to calculate the probability of a random variable falling within a...read more
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