Nimap Infotech Backend Java Developer Interview Questions and Answers

MCQ round with few apti, 2 coding too.

Q1. Into, projects,
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Q2. Print node with no edge in a unidirectional graph
Ans. 
To print nodes with no edges in a unidirectional graph, iterate through all nodes and print those without any outgoing edges.
• Iterate through all nodes in the graph

• For each node, check if it has any outgoing edges

• If a node has no outgoing edges, print it
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Q1. Intro, projects, dsa
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Q2. Prime number code
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Q1. What is kafka? how to implement it
Ans. 
Kafka is a distributed streaming platform used for building real-time data pipelines and streaming applications.
• Kafka is designed to handle high-throughput, fault-tolerant, and scalable real-time data streams.

• It uses topics to categorize data streams, producers publish messages to topics, and consumers subscribe to topics to process messages.

• Kafka can be implemented using Kafka APIs in Java, Scala, or other programming...read more
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Q2. What is Oauth and what is use of it?
Ans. 
OAuth is an open standard for access delegation, commonly used as a way for Internet users to grant websites or applications access to their information on other websites but without giving them the passwords.
• OAuth allows users to grant access to their information on one site to another site without sharing their credentials.

• It is commonly used for authentication and authorization in APIs.

• OAuth uses tokens to access re...read more
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