Real Time Data Services Web Developer Interview Questions and Answers for Freshers

Aptitude test

Current affairs

Q1. Puzzle , sql related questions
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20 questions and 40 minutes time, questions were asked from computer science basics and aptitude

5 coding questions and 1 hr time. Questions were easy to medium level and mostly asked on topics like array, strings and basic data structures

Q1. Next 3 rounds were technical interviews. Coding questions were asked in all rounds and some hr questions in 3rd interview.
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Medium level question based on quantitative aptitude

Medium level leetcode questions

Questions based on data structure

Questions based on Data structure

Programming questions on string, array, numbers.
Difficultity level was simple.

5 questions were asked out of which 2 of them were easy and rest of them were hard.
Easy :- sorting, numbers
Hard :- bitwise, mathematical equation question.

Good question with nice logic

5 question in 1 hour so it's kinda difficult to manage time

5 coding questions on google docs..duration 1 hour

Q1. Questions on string and array manipulation, leap year identification, second largest element of array, etc
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5-6 questions were provided and a day was given.

Q1. DSA question related to array and string
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Q1. Find the minimum number of coins to make a given value. (Coin Change)
Ans. 
Find minimum number of coins to make a given value using dynamic programming.
• Use dynamic programming to find the minimum number of coins needed.

• Create a dp array to store the minimum number of coins for each value up to the given value.

• Iterate through each coin denomination and update the dp array accordingly.

• Return the value at the given value index in the dp array.
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