Fractal Analytics Senior Software Engineer Interview Questions and Answers

Q1. Two Strings are anagram or not
Ans. 
Check if two strings are anagrams by comparing the frequency of characters.
• Create two arrays to store the frequency of characters for each string.

• Compare the frequency arrays to check if they are anagrams.

• Example: 'listen' and 'silent' are anagrams.
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Q2. Java and Spring boot questions
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Q1. System design basic HLD
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Q2. Previous project architecture
Ans. 
Previous project architecture involved microservices with Docker containers and Kubernetes for orchestration.
• Utilized microservices architecture for scalability and flexibility

• Deployed services in Docker containers for easy portability and consistency

• Managed containerized applications with Kubernetes for automated scaling and orchestration
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Q1. Need to find output of given code
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Q2. Solve some puzzles
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Q1. Questions related to DSA can't remember as its long.. All are leetcode medium
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Q2. Resume based quesions
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I was asked to implement lru cache which i did but still didn’t made to next round as apparently i didn’t complete the working code though in my opinion i did

Medium range 2 questions

Q1. Its design round question
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Q1. Custom sort , and some polyfills
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Q1. Implement Linked list
Ans. 
Linked list is a data structure where each node points to the next node.
• Create a Node class with data and next pointer

• Create a LinkedList class with head pointer

• Implement methods to add, remove, search, and traverse the list
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Q2. Implement Hash Map with array and linked list.
Ans. 
Implement Hash Map with array and linked list.
• Create an array of linked lists

• Hash function maps keys to array indices

• Insert key-value pairs into linked lists

• Handle collisions by chaining

• Search for a key by hashing and traversing linked list
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Q3. How to create a immutable class in java
Ans. 
To create an immutable class in Java, follow these steps:
• Make the class final

• Make all fields private and final

• Do not provide any setter methods

• Initialize all fields via constructor

• If any field is mutable, return a clone of it instead of the original object
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HackerRank Test - 2 Medium Questions
1. Given an Array Weights of Chocolates, Find Maximum amount of Chocolate that can be saved after "d" days, if you eat half the weight of one of the chocolates every day.
2. Find Closest String with equal number of vowels and consonants.