VVDN Technologies Senior Quality Engineer Interview Questions and Answers for Experienced

Q1. Program on collection framework
Ans. 
The collection framework in Java provides a set of classes and interfaces to store and manipulate groups of objects.
• The collection framework includes interfaces like List, Set, and Map, along with classes like ArrayList, HashSet, and HashMap.

• Collections can store objects of any type, including custom classes.

• Collections provide methods for adding, removing, and accessing elements, as well as for sorting and searching.

• I...read more
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There were around 20 questions in aptitude section to appear

It had 50 technical knowledge based questions on testing domain

Q1. OOPs concepts, collections, String programs, SQL queries, API basics, Jenkins
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Q1. Testing eCommerce website scenario, BDD framework, Behavioral questions
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Q1. How to sort array without using built in method
Ans. 
Use a sorting algorithm like bubble sort or quicksort to sort the array without using built-in methods.
• Implement bubble sort algorithm to compare and swap elements in the array.

• Alternatively, implement quicksort algorithm to recursively divide and conquer the array.

• Ensure to handle edge cases like empty array or array with only one element.
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Json validations and merging multiple Json config data, oops concepts with implementations.