Dotnet Developer Interview Questions

533 dotnet developer interview questions shared by candidates

How do you secure Web API. How will you improve the application performance. Explain SOLID Priciples. How & Where it is used in your application. Explain Design Patterns you have implemented in your application. What are Triggers. Whats its use. What are Magic tables. Difference between Temp table and table variable. What is CTE. How will you optimize a stored proc. How will you implement paging, filtering and sorting in stored proc.
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Senior Dotnet Developer

Interviewed at RealPage

3.6
Aug 19, 2022

How do you secure Web API. How will you improve the application performance. Explain SOLID Priciples. How & Where it is used in your application. Explain Design Patterns you have implemented in your application. What are Triggers. Whats its use. What are Magic tables. Difference between Temp table and table variable. What is CTE. How will you optimize a stored proc. How will you implement paging, filtering and sorting in stored proc.

• Self intro • Polymorphism • Overloading & Overriding • Array & Arraylist • Class & Struct • How memory allocated for class & struct • Static Keyword • Extension method • INotify Property • Dataset & Data Reader • Observable Collection • Tuples • Work experience in ASP.NET • Finally Keyword • Reverse a string coding
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Dotnet Developer

Interviewed at Trane Technologies

3.7
Nov 28, 2024

• Self intro • Polymorphism • Overloading & Overriding • Array & Arraylist • Class & Struct • How memory allocated for class & struct • Static Keyword • Extension method • INotify Property • Dataset & Data Reader • Observable Collection • Tuples • Work experience in ASP.NET • Finally Keyword • Reverse a string coding

What is the difference between Dot net framework and dot net core, What version of dot net you have used. What is middleware? Explain Dependency injection and also the interviewer told me to share the screen and write the code for implementing the DI. How to handle security in Web API? What is Entity framework. Different approaches used in Entity framework. Explain them with example? Difference between Update , Add? How to increase performance while using code first in EF? What is microservices, difference between microservices and Monolithic Architecture? What are indexes and types of indexes in SQL server? Questions related to Indexes. Write a query to find the 2nd highest salary of an employee?
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Dotnet Developer

Interviewed at Incedo

4.2
Jun 21, 2025

What is the difference between Dot net framework and dot net core, What version of dot net you have used. What is middleware? Explain Dependency injection and also the interviewer told me to share the screen and write the code for implementing the DI. How to handle security in Web API? What is Entity framework. Different approaches used in Entity framework. Explain them with example? Difference between Update , Add? How to increase performance while using code first in EF? What is microservices, difference between microservices and Monolithic Architecture? What are indexes and types of indexes in SQL server? Questions related to Indexes. Write a query to find the 2nd highest salary of an employee?

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