AkaaRa Consulting C Sharp and Dot Net Developer Interview Questions and Answers

Q1. Explain exceptional handling
Ans. 
Exception handling is a mechanism to handle runtime errors in a program.
• Exception handling helps in gracefully handling unexpected errors in a program.

• It prevents the program from crashing and allows for proper error logging and recovery.

• Commonly used keywords in exception handling are try, catch, finally, and throw.

• Example: try { // code that may throw an exception } catch(Exception ex) { // handle the exception }
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Q2. Explain difference between abstract and interfaces
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Abstract classes can have implementation details while interfaces cannot.
• Abstract classes can have both abstract and non-abstract methods, while interfaces can only have abstract methods.

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

• Abstract classes can have constructors, fields, and properties, while interfaces cannot.

• Abstract classes are used when some common functionality ne...read more
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Q3. One coding question on arrays
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Q1. Degine. Net net
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Q2. Basic mvc question
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Q1. What is interface
Ans. 
An interface is a programming construct that defines a contract for classes to implement certain methods and properties.
• Interfaces provide a way to achieve multiple inheritance in C#.

• They are used to define common behavior that can be implemented by multiple classes.

• Interfaces can be used to achieve loose coupling and promote code reusability.

• Classes that implement an interface must provide an implementation for all it...read more
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Q2. Can we use static interface in public class
Ans. 
Yes, static interfaces can be used in public classes in .NET.
• Static interfaces are used to define a set of static members that can be implemented by a class.

• They are useful when you want to group related static members together.

• Static interfaces cannot be instantiated or inherited, but they can be implemented by a class.

• The static members defined in the interface must be implemented as static members in the implementin...read more
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Q1. Name, qualifications, wanted to relocate
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Q1. Singlton architecture give examples
Ans. 
Singleton architecture is a design pattern that restricts the instantiation of a class to one object.
• Singleton pattern ensures that only one instance of a class is created and provides a global point of access to it.

• Examples of Singleton pattern include database connections, logging classes, and configuration settings.

• Singleton pattern can be implemented using lazy initialization, eager initialization, or thread-safe i...read more
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Q2. What kind of database you used in projects
Ans. 
I have experience working with various databases including SQL Server, Oracle, and MySQL.
• I have worked with SQL Server extensively and have experience in writing complex queries and stored procedures.

• I have also worked with Oracle and have experience in creating and managing tables, indexes, and views.

• I have used MySQL for smaller projects and have experience in designing and implementing databases.

• I am familiar with d...read more
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Q1. Basics of object oriented programming
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Q2. Roles and domains worked
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Q3. Types of cursors and joins in sql
Ans. 
Types of cursors and joins in SQL
• Cursors: Forward-only, Static, Dynamic, Keyset-driven

• Joins: Inner, Left, Right, Full, Cross

• Cursors are used to iterate through a result set

• Joins are used to combine data from multiple tables based on a common column
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Q4. Security mechanism apart from authorisation and Authentication
Ans. 
Data encryption, firewalls, intrusion detection and prevention systems.
• Data encryption

• Firewalls

• Intrusion detection and prevention systems
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Q5. Basics of model view controller
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Implement of gang of 4 patterns and program execution

Q1. Mostly asked on .net core Addsingleton,Addtransient,Scoped ,Middleware
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Q2. Coding question : Fibonacchi series ,finding avrage salary
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Q1. Differences between promises and observables
Ans. 
Promises are used for a single async operation while observables handle multiple async operations and can be cancelled.
• Promises are eager, meaning they start immediately upon creation.

• Observables are lazy, meaning they only start when subscribed to.

• Promises can only handle a single value or error, while observables can handle multiple values over time.

• Observables can be cancelled, while promises cannot be cancelled.

• Pro...read more
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Q2. Angular vs react differences
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Angular and React are both popular front-end frameworks, but they have some key differences in terms of architecture, syntax, and ecosystem.
• Angular is a full-fledged framework with a steep learning curve, while React is a library that is more flexible and easier to learn.

• Angular uses two-way data binding, while React uses one-way data flow.

• Angular has a more opinionated architecture and provides more out-of-the-box fea...read more
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It's really hard to clear and somehow i got cleared

Q1. How do you see yourself in next 5 years ?
Ans. 
In the next 5 years, I see myself growing as a skilled DOT NET Developer and taking on more challenging projects.
• Continuously upgrading my skills and staying updated with the latest technologies in the DOT NET ecosystem.

• Taking on leadership roles and mentoring junior developers.

• Contributing to the success of the organization by delivering high-quality software solutions.

• Exploring opportunities to work on diverse projec...read more
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Q2. Explain your previous company project in 5 min?
Ans. 
Developed a web application for managing inventory and sales
• Used ASP.NET MVC framework for building the application

• Implemented a database schema to store product and sales data

• Integrated third-party payment gateway for online transactions

• Implemented role-based authentication and authorization for different user roles

• Used JavaScript and jQuery for client-side validation and interactivity
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