CES Lead Software Engineer Interview Questions and Answers

Q1. Ways to send data from JCL to COBOL
Ans. 
Data can be sent from JCL to COBOL using parameters, files, or shared memory.
• Passing parameters through JCL PROC statement

• Writing data to a file in JCL and reading it in COBOL program

• Using shared memory to communicate between JCL and COBOL
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Q2. What are cursors?
Ans. 
Cursors are database objects used to retrieve data from result sets one row at a time.
• Cursors are used in database management systems to navigate through a result set.

• They allow for processing individual rows of a result set instead of fetching the entire set at once.

• Cursors can be used in SQL queries to perform operations on each row of a result set.
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Q3. Checkpoint in Db2
Ans. 
Checkpoint in Db2 is a mechanism used to ensure data consistency during recovery.
• Checkpoints are used to write all modified data from the buffer pool to the disk.

• They help in reducing the amount of work needed during database recovery.

• Checkpoints can be triggered manually or automatically based on configuration settings.
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Q1. Overall experience
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Q1. Java 8, stream operations, collection framework in depth
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Q2. Microservice architecture with sprong boot
Ans. 
Microservice architecture with Spring Boot is a popular approach to building scalable and resilient applications.
• Spring Boot provides a convenient way to create and deploy microservices

• Each microservice should have a clear and well-defined responsibility

• Communication between microservices can be achieved through REST APIs or messaging systems like Kafka

• Containerization with Docker and orchestration with Kubernetes can ...read more
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Q3. Spring security and transaction management
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Q1. Current Project in depth, roles and responsibilities
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Q2. Reason for change, design patterns
Ans. 
Design patterns are used to solve common software design problems and improve code quality.
• Design patterns provide reusable solutions to common software design problems.

• They improve code quality by promoting best practices and reducing code complexity.

• Examples of design patterns include Singleton, Factory, and Observer patterns.

• Reasons for changing design patterns may include improving performance, scalability, or main...read more
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Q3. Amazon web services, cloud front, lambda, ec2
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Q1. What are your salary expectations?
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Q2. Why are you looking for a change?
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It was pretty easy. Various theoretical questions on technical knowledge and 3 coding questions. Since I was applying for a .net profile, all questions were related to that only.

Q1. Coding question on inheritance.
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Q2. Coding question on Abstract classes and their application.
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Q3. Discussion on the company, their culture.
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Q4. Coding question on graph.
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Q1. Asked me my expected salary even though it was already decided when they reached out to me.
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Q2. Negotiations on the salary.
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Online zoom coding test will be there - 4 questions - 2 about output of code & 2 about technical questions.

Q1. Polymorphism and explain about virtual polymorphism
Ans. 
Polymorphism is the ability of a single function or method to operate on different types of data.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• Virtual polymorphism is achieved through virtual functions in C++.

• Virtual functions allow a function in a base class to be overridden in a derived class.

• Example: Animal class with virtual function 'makeSound' overridden in Dog a
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Q2. Write code for virtual polymorphism and explain
Ans. 
Virtual polymorphism allows objects of different classes to be treated as objects of a common superclass.
• Create a base class with virtual functions

• Create derived classes that override the virtual functions

• Use pointers or references of the base class to call the overridden functions
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Q1. About yourself should explain
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Q2. Reason for job change
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Q3. Salary negotiations and location
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Q1. Hashmap internal working
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Q2. Equals and hashcode
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Q1. Microservice design pattern
Ans. 
Microservice design pattern focuses on breaking down a large application into smaller, independent services.
• Each microservice is responsible for a specific function or feature

• Communication between microservices is typically done through APIs

• Microservices can be developed, deployed, and scaled independently

• Examples: Netflix, Amazon, Uber
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Q2. Springboot annotation
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Q1. Difference between Scheduled script and Map reduce script?
Ans. 
Scheduled script runs on a predefined schedule, while Map reduce script processes large datasets in parallel.
• Scheduled script is used for automating tasks at specific times, like sending reports daily at 8am.

• Map reduce script is used for processing large datasets by splitting them into smaller chunks and processing them in parallel.

• Scheduled script is typically used for routine tasks, while Map reduce script is used fo...read more
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Q2. Types of scripts in NetSuite.
Ans. 
Types of scripts in NetSuite include SuiteScript, SuiteTalk, SuiteFlow, and SuiteBuilder.
• SuiteScript: JavaScript-based scripts for customizing NetSuite functionality.

• SuiteTalk: Web services integration for connecting NetSuite with external systems.

• SuiteFlow: Visual workflow tool for automating business processes.

• SuiteBuilder: Customization tool for modifying NetSuite forms, fields, and records.
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Q1. About Self introduction and Core Functions of experiences
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Q2. Deep dive into Technologies what we have worked so far
Ans. 
I have worked with a variety of technologies including Java, Python, SQL, AWS, Docker, and Kubernetes.
• Java

• Python

• SQL

• AWS

• Docker

• Kubernetes
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Q1. Ability to handle the product
Ans. 
I have extensive experience in handling complex software products and have successfully led teams to deliver high-quality solutions.
• Led a team to successfully launch a new product feature within tight deadlines

• Managed the development of a large-scale software product from conception to release

• Collaborated with cross-functional teams to ensure product requirements were met

• Implemented agile methodologies to improve produ
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Q2. Customer or client interaction and project evaluations
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Q1. About Complete personal traits
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Q2. Compensation and Willingness
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Q1. Difference between default and props
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Q2. How do you know the dom is ready or not
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