Plus91 Technologies Project Manager Interview Questions and Answers

Q1. Java and micro service design patterns
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Java and micro service design patterns involve structuring code for scalability and flexibility.
• Use of design patterns like Singleton, Factory, and Observer for creating microservices in Java.

• Implementing Circuit Breaker pattern to handle failures and prevent cascading failures in microservices architecture.

• Applying API Gateway pattern to manage and secure communication between microservices.

• Utilizing Service Registry ...read more
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Q2. Java 8 features and examples for implementation
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Java 8 introduced several new features such as lambda expressions, functional interfaces, streams, and default methods.
• Lambda expressions allow for more concise code by enabling functional programming.

• Functional interfaces are interfaces with a single abstract method, which can be implemented using lambda expressions.

• Streams provide a way to process collections of objects in a functional style.

• Default methods allow int...read more
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Q3. Spring boot application work knowledge
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Q4. GIT lab SCM operations
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Q5. Front end technology related questions
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Asked scenario based questions

Q1. Scenario based questions
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Q1. Strecture of sql statement
Ans. 
SQL statements are used to interact with databases by performing operations like querying, updating, and deleting data.
• SQL statements are made up of keywords like SELECT, INSERT, UPDATE, DELETE, etc.

• They are structured in a specific order, with clauses like WHERE, ORDER BY, GROUP BY, etc.

• Tables are referenced using their names, and conditions are specified to filter data.

• Joins can be used to combine data from multiple
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Strong appitude knowledge is required.

Q1. String , arrays, oops
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Environment Sustanability

Q1. Read newspaper and general awareness is important
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Q1. Intro about Experience
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Q2. Knowledge on tools
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Q1. What is normalization why use this
Ans. 
Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.
• Normalization helps in reducing data redundancy by breaking down large tables into smaller ones.

• It ensures data integrity by minimizing data anomalies such as update, insert, and delete anomalies.

• Normalization follows a set of rules (normal forms) like 1NF, 2NF, 3NF, etc., to organize data efficiently.

• Example: ...read more
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