Fabindia Software Developer Interview Questions and Answers

Basic java question, design questions, 1 data structure question

Q1. Asked puzzle and previous project experience
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Q2. Monitor microservices using Spring actuator
Ans. 
Spring Actuator provides endpoints to monitor and manage microservices in a Spring Boot application.
• Add Spring Boot Actuator dependency in pom.xml

• Enable Actuator endpoints in application.properties or application.yml

• Access Actuator endpoints like /actuator/health, /actuator/info, etc.

• Customize Actuator endpoints using configuration properties
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Q3. How webflux works
Ans. 
Webflux is a reactive programming framework for building non-blocking, event-driven applications on the JVM.
• Webflux is part of the Spring Framework and provides support for reactive programming.

• It allows developers to build asynchronous, non-blocking applications that can handle a large number of concurrent connections.

• Webflux uses Project Reactor, a reactive library for building reactive applications.

• It supports both ...read more
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Q1. Why string arr immutable
Ans. 
String arrays are immutable because they cannot be changed once created.
• Strings in an array cannot be modified individually

• Any changes to a string array result in a new array being created

• Immutable arrays ensure data integrity and prevent unintended side effects
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Q2. How we can create a custom immutable class
Ans. 
To create a custom immutable class, use final keyword for class, private final fields, and no setter methods.
• Use the final keyword for the class to prevent inheritance

• Declare all fields as private and final to prevent modification

• Do not provide setter methods for the fields to maintain immutability

• Provide getter methods to access the fields
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Coding test contains 2 questions 1 moderate and 1 easy level

Q1. Asked about DSA,Heap sort,Merge sort.
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Q1. Tell me about yourself
Ans. 
I am a passionate software developer with experience in Java, Python, and web development.
• Graduated with a degree in Computer Science

• Worked on various projects using Java and Python

• Familiar with web development technologies like HTML, CSS, and JavaScript
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Q2. Why Lowe's,how can Lowe's improve its customer services
Ans. 
I believe Lowe's is a reputable company with a strong focus on customer satisfaction. They can improve their customer services by implementing personalized recommendations, enhancing their online platform, and providing better in-store experiences.
• Implement personalized recommendations based on customer preferences and purchase history

• Enhance the online platform for easier navigation, product search, and checkout proce...read more
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2 DSA questions and some MCQ on Java and Spring

Q1. Longest palindromic substring
Ans. 
A palindromic substring is a string that reads the same forwards and backwards.
• Use dynamic programming to find the longest palindromic substring.

• Start by considering each character as the center of a potential palindrome.

• Expand outwards from each center to check for palindromes of odd and even lengths.
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Q2. Remove duplicates in place from a 1D array
Ans. 
Remove duplicates from a 1D array of strings in place
• Iterate through the array and use a HashSet to keep track of unique elements

• Replace duplicates with null or an empty string to remove them in place
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Q1. Project discussion
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Q2. Search min element in a rotated sorted array with duplicate elements
Ans. 
Search for the minimum element in a rotated sorted array with duplicate elements.
• Use binary search to find the minimum element in the rotated sorted array.

• Handle the case where duplicate elements are present by adjusting the search conditions.

• Consider cases where the array is not rotated or contains only one element.
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Q3. Ways of declaring singleton class
Ans. 
A singleton class is a class that can only have one instance created throughout the application.
• Declare a private static instance variable of the class

• Create a private constructor to prevent external instantiation

• Provide a public static method to access the instance
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Q1. Project discussion
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Q2. Behavioural questions
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Q1. Vanilla JS questions.
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Q1. Basic React questions
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Q1. Past experiences and projects
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Q1. Javascript questions
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Q1. Project related questions
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Two DSA ques were asked. One easy and one medium.

Q1. Project discussion and some DSA ques
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Q1. Standard hr question
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