Lumina Datamatics Team Lead Interview Questions and Answers for Experienced

Q1. About current project
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Aptitude test all mathematical and general aptitude questions

Any topic related to current trends

Q1. Totally technical round all the questions related to the position that you are applying for
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Q2. Different types of Models etc..
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There are various types of models used in different fields such as statistical models, mathematical models, physical models, etc.
• Statistical models: Used in data analysis to make predictions or draw inferences.

• Mathematical models: Represented using mathematical equations to describe real-world phenomena.

• Physical models: Used to simulate physical systems or objects for testing or analysis.

• Computer models: Utilized in co...read more
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Q3. Explain Bug life cycle or defect life cycle
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Bug life cycle or defect life cycle is the process of identifying, reporting, prioritizing, fixing, and verifying bugs in software development.
• Bug identification: Bugs are identified through testing, user feedback, or code reviews.

• Bug reporting: Bugs are reported in a bug tracking system with details like steps to reproduce, severity, and priority.

• Bug prioritization: Bugs are prioritized based on severity and impact on...read more
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Q1. What are oops concept
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Object-oriented programming concepts that focus on data encapsulation, inheritance, polymorphism, and abstraction.
• Encapsulation: bundling data and methods that operate on the data into a single unit (class)

• Inheritance: allows a class to inherit properties and behavior from another class

• Polymorphism: ability for objects of different classes to respond to the same message

• Abstraction: hiding the complex implementation det
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Q1. Remove duplicates from the list
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Remove duplicates from an array of strings
• Create a new set to store unique values

• Iterate through the array and add each element to the set

• Convert the set back to an array to remove duplicates
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Q2. Inheritance related theoretical
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Basic aptitude test.

Q1. Basic sql db questions
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Q2. Project related questions
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Q1. Tell about yourself?
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Q1. Transient and volatile keyword?
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Q2. Synchronize ,marker interface java 1.8 features
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Q1. Oops concept along with DBMS
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Oops concept and DBMS are both important in software development, with Oops focusing on object-oriented programming and DBMS on managing databases.
• Oops concept involves classes, objects, inheritance, polymorphism, and encapsulation.

• DBMS involves creating, managing, and querying databases using SQL.

• Oops helps in organizing code and promoting reusability, while DBMS ensures data integrity and security.

• Example: In a banki...read more
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Q2. Oops concept along with the importancE
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Oops concept is a programming paradigm that focuses on objects and classes, promoting code reusability and modularity.
• Encapsulation: bundling data and methods that operate on the data within a single unit

• Inheritance: allows a class to inherit properties and behavior from another class

• Polymorphism: ability for objects to be treated as instances of their parent class

• Abstraction: hiding the complex implementation details
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Q3. DBms indexing question how
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Q1. General .net core, oops, sql, caching, authentication, security, angular.
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