Vayana AWS Devops Engineer Interview Questions and Answers

Q1. Data structure and algo
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First round was aptitude and 2 coding questions

Q1. Second round was face to face was fully technical asked me code some basic code
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Q2. Find 2nd largest decimal number from given numbers
Ans. 
Iterate through the numbers and keep track of the largest and second largest numbers.
• Iterate through the numbers and compare each number with the current largest and second largest numbers.

• Update the second largest number if a new number is found that is greater than the current second largest number.

• Return the second largest number at the end of the iteration.
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Q1. Next was manager round it was also little technical
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Q1. This round was with vice president
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Q1. This round was final round about salary negotiation and hr round
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Q1. Question was related to Java like difference between abstract class and interface,how linked list ,hash map ,arraylist work internally
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Q2. Question related to spring boot like @autowired annotations, how spring boot is different from spring
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Q3. Coding questions: reverseString ,factorial using Recursion only,how to find middle element in LL
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Q1. Some basic questions related to JS and Java both
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Q2. Managerial related questions,
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Q1. Promises ,async and await related questions
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Q2. Question related to API ,and scenario based questions
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Soo easy aptitude exam asked questions

Q1. What is oops in Java,fibo, and sorting
Ans. 
OOPs in Java refers to Object-Oriented Programming concepts, fibo likely refers to Fibonacci sequence, and sorting refers to arranging elements in a specific order.
• OOPs in Java includes concepts like classes, objects, inheritance, polymorphism, and encapsulation.

• Fibo likely refers to the Fibonacci sequence, where each number is the sum of the two preceding ones (e.g. 0, 1, 1, 2, 3, 5, ...).

• Sorting involves arranging el...read more
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Q2. Why is garbage collector is used in java etc more of java questions
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Q3. Can main can be overloaded and overrided
Ans. 
Yes, main can be overloaded but not overridden in C++.
• Main can be overloaded by defining multiple functions with different parameters.

• Example: int main() and int main(int argc, char* argv[])

• Main cannot be overridden as it is a static function of the program.
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Q1. Oops concepts and projects
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Q2. Collections, multithreading
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It was simple program of url shorting for registered and non registered users each request must have unique shortened url.

Q1. Palindrome implementation and run time
Ans. 
A palindrome is a word or phrase that reads the same backward as forward. Implementing it involves comparing the first and last characters and iterating towards the middle.
• Implement a function that takes a string as input and returns true if it is a palindrome, false otherwise.

• Use two pointers, one starting from the beginning and the other from the end, and compare the characters at each position.

• If the characters matc...read more
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Q2. DSA and various algorithms and run time
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Q1. This round was one on one with VP of engineering. Basic q and a regarding role and responsibilities
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Q1. Relocation, Reason For job change, future plan, careers objective
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