Prospecta Software Interview Questions and Answers

Q1. STS annotations, abstract classes and interface, diamond problem, spring actuators,
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Q2. Static syncronisation, Java 8
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Q3. Spring query should vs must, kafka basics
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Q1. How elastic works
Ans. 
Elasticsearch is a distributed, RESTful search and analytics engine capable of solving a growing number of use cases.
• Elasticsearch is a search engine based on the Lucene library.

• It stores data in JSON format and allows for real-time search and analysis.

• Elasticsearch can be used for full-text search, structured search, analytics, and more.

• It is highly scalable and can be easily integrated with other tools like Logstash
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Q2. How microservices talks
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Microservices communicate through lightweight protocols like HTTP or messaging queues.
• Microservices communicate using lightweight protocols like HTTP, REST, or messaging queues.

• Each microservice is responsible for a specific business function and communicates with other microservices through APIs.

• Microservices can be deployed independently, allowing for easier scalability and maintenance.

• Communication between microserv...read more
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Q3. Explain the latwst complex problem
Ans. 
Developing a real-time collaborative code editor with live chat feature
• Implemented WebSocket for real-time communication between users

• Utilized Operational Transformation algorithm to handle concurrent edits

• Integrated chat functionality using Socket.io

• Ensured data consistency and synchronization across all connected clients
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A Spring Boot project

Q1. Basic Java and Spring Boot question
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Q2. What is TreeMap ?
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TreeMap is a class in Java that implements the Map interface using a tree structure.
• TreeMap stores key-value pairs in a sorted order based on the natural ordering of keys or a custom Comparator.

• It allows for efficient retrieval, insertion, and deletion operations.

• Example: TreeMap treeMap = new TreeMap<>();
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Q3. SpringBoot API making ?
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Q1. Normal interaction where you just need to agree with their terms like reloaction
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