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100+ Matrix Solutions Interview Questions and Answers

Updated 7 Feb 2025
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Q101. What is java 8 features

Ans.

Java 8 introduced several new features including lambda expressions, functional interfaces, streams, and default methods.

  • Lambda expressions allow you to write code in a more concise and readable way.

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

  • Streams provide a way to work with sequences of elements and perform operations like filter, map, and reduce.

  • Default methods allow interfaces to have method implem...read more

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Q102. wht is the use of enum?

Ans.

Enums are used to define a set of named constants, making code more readable and maintainable.

  • Enums help in improving code readability by giving meaningful names to constants

  • They provide type safety by restricting variables to only hold values from the defined set

  • Enums can be used in switch statements to handle different cases easily

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Q103. What is sequence

Ans.

A sequence is a ordered list of elements or events following a specific pattern or order.

  • A sequence can be in ascending or descending order.

  • Examples include Fibonacci sequence, arithmetic progression, and DNA sequence.

  • Sequences can be finite or infinite.

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Q104. What is the class?

Ans.

A class is a blueprint for creating objects that have similar attributes and methods.

  • A class is a user-defined data type that encapsulates data and functions.

  • It is a template for creating objects.

  • It provides a way to organize and structure code.

  • Objects are instances of a class.

  • Classes can inherit properties and methods from other classes.

  • Examples include String, Integer, and List in Java.

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Q105. why we use mvc ?

Ans.

MVC is used to separate concerns in software development, making code more organized and maintainable.

  • Separates concerns of data, presentation, and logic

  • Improves code reusability and maintainability

  • Enhances testability of the application

  • Promotes scalability and flexibility

  • Examples: ASP.NET MVC, Ruby on Rails, Spring MVC

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Q106. What is java explain

Ans.

Java is a high-level, object-oriented programming language used for developing applications and software.

  • Java is platform-independent and can run on any operating system

  • It is used for developing desktop, web, and mobile applications

  • Java code is compiled into bytecode which can be run on any Java Virtual Machine (JVM)

  • Java has a vast library of pre-built classes and APIs for developers to use

  • Java is used by companies such as Google, Amazon, and Netflix for their applications

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Q107. reverse an array

Ans.

Reverse an array of strings

  • Iterate through the array from both ends and swap the elements

  • Continue swapping until the middle of the array is reached

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Q108. How to declare file

Ans.

To declare a file in software development, you typically need to specify the file type, name, and location.

  • Use a file declaration statement in the programming language you are using (e.g. 'File myFile = new File("example.txt");' in Java)

  • Specify the file type if necessary (e.g. '.txt' for text files, '.csv' for CSV files)

  • Provide the file name and location within the declaration statement (e.g. 'example.txt' or 'C:/Users/User/Documents/example.txt')

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Q109. Whay do we use object

Ans.

Objects are used in software engineering to represent real-world entities and encapsulate data and behavior.

  • Objects help organize code by grouping related data and functions together

  • Objects promote code reusability through inheritance and polymorphism

  • Objects allow for easier maintenance and updates by encapsulating data and behavior

  • Examples: a Car object with properties like make, model, and methods like start(), stop()

  • Examples: a User object with properties like username, em...read more

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Q110. Abstraction vs encasulation

Ans.

Abstraction focuses on hiding unnecessary details, while encapsulation focuses on bundling data and methods together.

  • Abstraction allows us to focus on what an object does, rather than how it does it.

  • Encapsulation helps in data hiding and prevents direct access to the internal state of an object.

  • Abstraction is achieved through interfaces and abstract classes, while encapsulation is achieved through access modifiers like private and protected.

  • Example of abstraction: a car's int...read more

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Q111. Say about dbms joins ,types?

Ans.

DBMS joins are used to combine data from multiple tables based on a related column.

  • Types of DBMS joins include inner join, left join, right join, and full outer join.

  • Inner join returns only the matching records from both tables.

  • Left join returns all records from the left table and the matching records from the right table.

  • Right join returns all records from the right table and the matching records from the left table.

  • Full outer join returns all records from both tables, inclu...read more

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Q112. What is birth place

Ans.

Birth place refers to the location where a person is born.

  • Birth place is typically recorded on a person's birth certificate.

  • It can be a city, town, hospital, or even a specific address.

  • Some people may be born in unconventional places like a car or airplane.

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Q113. Explain the oops concepts

Ans.

OOPs concepts are fundamental principles of object-oriented programming that help in organizing and designing code.

  • Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

  • Inheritance: Ability of a class to inherit properties and behavior from another class.

  • Polymorphism: Ability to present the same interface for different data types.

  • Abstraction: Hiding the complex implementation details and showing only the necessary features to the outside...read more

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Q114. Advantages of collections

Ans.

Collections provide efficient data storage and manipulation in programming.

  • Allow for easy organization and retrieval of data

  • Provide various data structures like lists, sets, maps, etc.

  • Enable operations like sorting, searching, filtering, and iteration

  • Improve code readability and maintainability

  • Examples: ArrayList, HashMap, TreeSet

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Q115. What is immutability

Ans.

Immutability refers to the state of an object or data structure that cannot be modified after it is created.

  • Immutability ensures that once an object is created, its state cannot be changed.

  • Immutable objects are thread-safe and can be shared without the risk of unintended modifications.

  • Examples of immutable data structures include strings and tuples in Python.

  • Functional programming languages like Haskell promote immutability to avoid side effects.

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Q116. 2. Explain the OOPs concepts

Ans.

OOPs concepts are the fundamental principles of Object-Oriented Programming.

  • Abstraction: Hiding implementation details and showing only necessary information.

  • Encapsulation: Binding data and functions together to protect data from outside interference.

  • Inheritance: Acquiring properties and behavior of a parent class by a child class.

  • Polymorphism: Ability of an object to take many forms or have multiple behaviors.

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Q117. scenario for terraform

Ans.

Using Terraform to automate infrastructure provisioning

  • Terraform is an infrastructure as code tool used to define and provision infrastructure

  • It uses declarative configuration files to define the desired state of the infrastructure

  • Terraform supports various cloud providers like AWS, Azure, and Google Cloud

  • Example: Define AWS EC2 instance using Terraform configuration file

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Q118. Api gateway explanation

Ans.

API Gateway is a server that acts as an entry point for APIs.

  • API Gateway is a reverse proxy that routes requests to the appropriate backend service.

  • It can handle authentication, rate limiting, and caching.

  • Examples include AWS API Gateway, Kong, and Apigee.

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Q119. WANT TO RELOCATE

Ans.

Yes, I am open to relocating for the right opportunity.

  • I am willing to consider relocation if the job aligns with my career goals.

  • I am open to exploring new cities and cultures.

  • I am willing to relocate for a better work-life balance or career advancement opportunities.

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Q120. Explain y cognizant

Ans.

Cognizant is a multinational corporation that provides IT services, including consulting, technology, and outsourcing.

  • Cognizant offers a wide range of services such as digital solutions, consulting, and business process outsourcing.

  • The company is known for its expertise in areas like artificial intelligence, cloud computing, and cybersecurity.

  • Cognizant serves clients in various industries such as healthcare, financial services, and retail.

  • The company has a global presence wit...read more

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Q121. explain cicd process

Ans.

CI/CD process stands for Continuous Integration/Continuous Deployment, which is a software development practice to automate the process of integrating code changes and deploying them to production.

  • Continuous Integration (CI) involves automatically building and testing code changes as they are committed to a shared repository.

  • Continuous Deployment (CD) involves automatically deploying code changes to production environments after passing the CI tests.

  • CI/CD pipelines are typica...read more

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Top Rated Mega Company - 2024
Top Rated IT/ITES Company - 2024
HQ - Teaneck. New Jersey., United States (USA)
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Interview Process at Matrix Solutions

based on 150 interviews
5 Interview rounds
Technical Round - 1
Technical Round - 2
HR Round
Personal Interview1 Round - 1
Personal Interview1 Round - 2
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