Axtria ETL Developer Interview Questions and Answers

Q1. Java springboot basic to intermediate question
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Q2. Java stream questions
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Q1. Easy level DSA questions
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Q2. Project based questions
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Q1. String based questions in java
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Q2. What are the fundamental concepts of Java?
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Java based questions and few DSA questions

1st round is aptitude and pesudocode

Q1. Mostly python questions
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Q2. List questions and basic to mediumprogram
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Q1. Questions were completely based on data structures and algorithm
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Q2. SQL based questions were also asked
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Q1. Something based on hashet
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Q2. Same with this too
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Basic questions were given..bar graphs,pie charts

Q1. What is Oops concept?
Ans. 
Oops concept stands for Object-Oriented Programming concepts which include principles like inheritance, encapsulation, polymorphism, and abstraction.
• Oops concept is a programming paradigm that focuses on objects and classes.

• It includes principles like inheritance, where a class can inherit properties and behaviors from another class.

• Encapsulation is another principle where data is wrapped within a class and can only be...read more
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Q1. DSA Graph question in any language
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Q2. Sum of sub array
Ans. 
The problem involves finding the sum of all possible subarrays in an array of integers.
• Use nested loops to iterate through all possible subarrays

• Keep track of the sum of each subarray as you iterate

• Consider edge cases like empty array or negative numbers
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Q1. Internal working of Hash Map
Ans. 
Hash Map is a data structure that stores key-value pairs and uses a hash function to map keys to their corresponding values.
• Hash Map uses a hash function to determine the index of the key-value pair in the underlying array.

• Collisions can occur when multiple keys hash to the same index, which can be resolved using techniques like chaining or open addressing.

• Hash Map typically has a load factor threshold to determine whe...read more
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