Medi Assist India Software Engineer2 Interview Questions and Answers

Q1. Explain dependency injection in .NET and how to resolve dependency?
Ans. 
Dependency injection in .NET is a design pattern where dependencies are injected into a class rather than the class creating them itself.
• Dependency injection helps in achieving loose coupling between classes.

• In .NET, dependency injection can be implemented using frameworks like Unity, Ninject, or built-in .NET Core DI container.

• Dependencies can be resolved through constructor injection, property injection, or method in...read more
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Q1. Discussion on work experience and what are the projects that you have worked on?
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Q1. Basic oops consept.
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Q1. About your last work experience
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Q1. What lib list ?
Ans. 
A list of libraries used in software development.
• Common libraries like React, Angular, jQuery

• Backend libraries like Express, Django, Spring

• Database libraries like Sequelize, SQLAlchemy, Hibernate
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Q2. What is Physical file
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A physical file is a file stored on a physical storage device, such as a hard drive or solid-state drive.
• Physical files are stored on physical storage devices like hard drives or SSDs.

• They can be accessed and manipulated by software applications.

• Examples include text documents, images, videos, and executable programs.
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Q1. What is batch job
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A batch job is a program that processes a large amount of data in a single run without user interaction.
• Batch jobs are typically scheduled to run at specific times, often during off-peak hours.

• They are commonly used for tasks such as data processing, report generation, and system maintenance.

• Examples of batch job tools include cron in Unix/Linux systems and Task Scheduler in Windows.
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Q2. What is interctive job
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An interactive job is a task or project that requires active participation and engagement from the user.
• Interactive jobs involve real-time feedback and communication between the user and the system.

• Examples include video games, online surveys, and interactive websites.

• Users have control over the outcome of the task based on their input and decisions.
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Q1. Easy coding questions
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Q1. DSA questions , palindrome
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Q1. Why are you joining this company
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Q1. Java 8 questions
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Q2. Collections, Stream, Microservices
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Q1. Behavioural and managerial round
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Q1. Expectations, about education and previous job. Nothing extra
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Q1. What is opps explain in details
Ans. 
Object-oriented programming (OOP) 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.
• OOP focuses on creating objects that interact with each other to solve problems

• It involves concepts like classes, objects, inheritance, polymorphism, and encapsulation

• Example: In a banking system, you can have classes like Account, Customer, and Tra
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Q2. What is string and string builder
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String is a sequence of characters, while StringBuilder is a mutable sequence of characters used for manipulating strings efficiently.
• String is immutable in Java, meaning once created, it cannot be changed.

• StringBuilder is mutable and allows for efficient manipulation of strings.

• String concatenation using '+' operator creates a new string object each time, while StringBuilder's append method modifies the existing objec...read more
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Q3. What is boxing and unboxing
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Boxing is the process of converting a value type to a reference type, while unboxing is the opposite process.
• Boxing is done implicitly by the compiler when a value type is assigned to a reference type variable.

• Unboxing requires explicit casting to convert a reference type back to a value type.

• Example: int num = 10; object obj = num; // Boxing

• Example: int num2 = (int)obj; // Unboxing
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Q4. What is difference btw interface and abstract and why we use them
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Interfaces define a contract for classes to implement, while abstract classes can have both abstract and concrete methods.
• Interfaces can only have abstract methods and constants, while abstract classes can have both abstract and concrete methods.

• A class can implement multiple interfaces but can only inherit from one abstract class.

• Interfaces are used for achieving multiple inheritance in Java, while abstract classes ar...read more
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Q5. What r the validations used in asp.net
Ans. 
ASP.NET uses various validations like RequiredFieldValidator, RangeValidator, RegularExpressionValidator, etc.
• RequiredFieldValidator - Ensures a field is not left blank

• RangeValidator - Validates if a value falls within a specified range

• RegularExpressionValidator - Validates input based on a specified pattern
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Q6. What is API and what are its type
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API stands for Application Programming Interface. It defines the methods and data formats that applications can use to communicate with each other.
• APIs can be classified into different types such as RESTful APIs, SOAP APIs, and GraphQL APIs.

• RESTful APIs use standard HTTP methods like GET, POST, PUT, DELETE to perform operations on resources.

• SOAP APIs use XML-based messaging protocol for communication between applicatio...read more
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There were 2coding questions. I don't remember the exact coding questions but they were of moderate level. Basically, arrays and linked-list questions.

Q1. Prior to the technical interview, there was pre-placement talk in the morning as the talk ended they started the interviews.
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Q2. Introduction questions on JAVA i.e. diff. between c++ and java, oops concept, discussion on a programming question Data structures related questions. All questions were basically from what you mentioned in...read more
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