Cigniti Technologies Senior Engineer II Interview Questions and Answers for Experienced

I was tasked with creating a Spring Boot microservice.

Q1. PYSPARK QUESTIONS , CLUSTER CONFIG AND SOME SCENARIOS , ADF QUESTIONS
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Q2. PYTHON AND SQL CODING QUESTIONS
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Q1. SALARY DISCUSSION
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Java and sql questions

Simple java program for find factorial and prime number

Q1. Mostly about java,
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Q2. Spring boot and Jenkins
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Q1. Java 8 interview questions
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Q2. Spring boot questions
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Q1. Microservices strurcture and implementation
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Q1. What is oops concept. How hashmap works
Ans. 
OOPs concept is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
• OOPs stands for Object-Oriented Programming

• It focuses on creating objects that interact with each other to solve a problem

• Encapsulation, inheritance, polymorphism, and abstraction are key principles of OOPs

• HashMap in Java is a data structure that stores key-value pairs

• I...read more
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Q1. What are design patterns you have worked in your project
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I have worked with design patterns such as Singleton, Factory, Observer, and Strategy in my projects.
• Singleton pattern was used to ensure only one instance of a class is created.

• Factory pattern was used to create objects without specifying the exact class of object that will be created.

• Observer pattern was used to define a one-to-many dependency between objects so that when one object changes state, all its dependents ...read more
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Q1. Are you able to work in hybrid mode
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Yes, I am able to work in hybrid mode which involves a combination of remote and on-site work.
• Experienced in collaborating with remote team members using communication tools like Slack, Zoom, and Jira

• Comfortable with switching between working on-site and remotely based on project requirements

• Adaptable to different work environments and able to maintain productivity in both settings
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It was on cypher query language for me

Q1. Define Neo4J architecturaly
Ans. 
Neo4J is a graph database management system that stores data in nodes and relationships.
• Uses graph structures to represent and store data

• Nodes represent entities and relationships represent connections between entities

• Supports ACID transactions for data consistency

• Query language is Cypher
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Q1. Available location
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Q1. Explain oops concept
Ans. 
OOPs concept is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
• OOPs stands for Object-Oriented Programming

• Key concepts include classes, objects, inheritance, polymorphism, and encapsulation

• Classes are blueprints for creating objects, which are instances of classes

• Inheritance allows a class to inherit properties and behavior from an...read more
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Q2. Ref vs out Const vs readonly
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Ref vs out: Ref passes variable by reference, out initializes variable. Const vs readonly: Const is compile-time constant, readonly is runtime constant.
• Ref passes variable by reference, out initializes variable

• Const is compile-time constant, readonly is runtime constant
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Q1. Write sql queries
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I have experience writing SQL queries for various databases.
• Use SELECT statement to retrieve data from database

• Use WHERE clause to filter data based on specific conditions

• Use JOIN clause to combine data from multiple tables
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Q2. Angular Api desgining questions Jet token
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