Capillary Technologies Senior Software Engineer Interview Questions and Answers

Q1. JavaScript based, reduce, map, Database indexing
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The test was a combination of simple maths, computer Science related questions.

Q1. They asked some sql and java related basic questions
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Q1. It was all about java
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It was a basic aptitude test, online based.

Q1. Basic DSA and SQL questions
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Q2. Programming languages
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Online technical aptitude test

Q1. Related oops and old company projects
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Q1. DSA problems on linked list, OOPs in depth programming, design pattens in Java. Some theoretical knowledge on OOPs and design patterns
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Medium to hard questions based on arrays, dp

Q1. Quick sort algorithm
Ans. 
Quick sort is a popular sorting algorithm that uses divide and conquer strategy.
• Divides array into smaller sub-arrays based on a pivot element

• Recursively sorts sub-arrays

• Combines sorted sub-arrays to get final sorted array

• Time complexity: O(n log n) on average, O(n^2) worst case

• Example: [3, 6, 8, 10, 1, 2, 1] -> [1, 1, 2, 3, 6, 8, 10]
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Q2. Modified rotate a matrix
Ans. 
Rotate a matrix by 90 degrees in place
• Transpose the matrix

• Reverse each row of the transposed matrix
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Q1. You have worked on which technology
Ans. 
I have worked on technologies such as Java, Python, SQL, and JavaScript.
• Java

• Python

• SQL

• JavaScript
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Q2. What you had implemented
Ans. 
I have implemented various web applications using technologies like HTML, CSS, JavaScript, and React.
• Developed a responsive website for a local business using HTML, CSS, and JavaScript

• Created a single-page application using React for a personal project

• Integrated APIs to fetch and display data dynamically on web pages
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Hacker rank arrays questions were asked