Junior .NET Developer

10+ Junior .NET Developer Interview Questions and Answers for Freshers

Updated 27 Jan 2025
search-icon

Q1. Coding round 1. Write a code for prime and odd numbers

Ans.

Code for prime and odd numbers

  • For prime numbers, check if the number is divisible by any number less than itself

  • For odd numbers, check if the number is not divisible by 2

  • Use loops and conditional statements to implement the checks

  • Consider edge cases such as negative numbers and 0

Q2. What is the SQL query to retrieve the maximum salary from a database?

Ans.

SQL query to retrieve the maximum salary from a database

  • Use the SELECT statement with the MAX function to retrieve the maximum salary

  • Specify the column name for the salary field in the table

  • Example: SELECT MAX(salary) FROM employees

Q3. What are the available access modifiers in programming?

Ans.

Access modifiers control the visibility and accessibility of classes, methods, and variables in programming.

  • Public - accessible from anywhere

  • Private - accessible only within the same class

  • Protected - accessible within the same class and its subclasses

  • Internal - accessible within the same assembly

  • Protected Internal - accessible within the same assembly or subclasses

Q4. What are the key concepts of Object-Oriented Programming (OOP)?

Ans.

Key concepts of OOP include encapsulation, inheritance, polymorphism, and abstraction.

  • Encapsulation: Bundling data and methods that operate on the data into a single unit (class). Example: Class with private fields and public methods.

  • Inheritance: Creating new classes based on existing classes, inheriting their attributes and behaviors. Example: Subclass extending a superclass.

  • Polymorphism: Objects of different classes can be treated as objects of a common superclass. Example:...read more

Are these interview questions helpful?

Q5. What is the difference between procedures and functions?

Ans.

Procedures do not return a value, while functions return a value.

  • Procedures are used to perform an action, while functions are used to calculate and return a value.

  • Functions have a return type specified, while procedures do not.

  • Example: Procedure to display a message on the screen vs Function to calculate the sum of two numbers.

Q6. What is your understanding of normalization in SQL?

Ans.

Normalization in SQL is the process of organizing data in a database to reduce redundancy and improve data integrity.

  • Normalization is a technique used to eliminate redundant data and ensure data integrity.

  • It involves breaking down a table into smaller tables and defining relationships between them.

  • There are different normal forms such as 1NF, 2NF, 3NF, and BCNF.

  • For example, in a database of students and courses, instead of storing student details in the course table, a separa...read more

Share interview questions and help millions of jobseekers 🌟

man-with-laptop

Q7. Write a code for reverse string

Ans.

Code to reverse a string

  • Create an empty string variable to store the reversed string

  • Loop through the original string from the end to the beginning

  • Append each character to the empty string variable

  • Return the reversed string

Q8. Difference between substr() and charindex()?

Ans.

substr() extracts a substring from a string based on start and length, while charindex() finds the position of a character or substring within a string.

  • substr() is used in SQL Server to extract a portion of a string based on the starting position and length.

  • charindex() is used in SQL Server to find the position of a specific character or substring within a string.

  • Example: SELECT SUBSTRING('Hello World', 1, 5) will return 'Hello'.

  • Example: SELECT CHARINDEX('o', 'Hello World') w...read more

Junior .NET Developer Jobs

Opening For Jr .Net Developer with Datamatics - Andheri(east) 0-2 years
Datamatics
3.5
₹ 4 L/yr - ₹ 4 L/yr
Mumbai Suburban
Junior .Net Developer 1-5 years
Pioneer E Solutions Pvt Ltd
3.6
Chandigarh
Junior Dot Net Developer 3-6 years
Intellectyx Inc
3.4
Coimbatore

Q9. write schema for many to many relationship

Ans.

Schema for many to many relationship

  • Create a junction table to connect the two entities

  • Each record in the junction table represents a relationship between the two entities

  • Both entities have a many-to-many relationship with each other

Q10. 3. Write a code for fibannoci series

Ans.

Code for Fibonacci series

  • Declare two variables to store the first two numbers of the series

  • Use a loop to generate the next numbers in the series by adding the previous two

  • Print or store the generated numbers

Q11. What is class and object?

Ans.

A class is a blueprint for creating objects, while an object is an instance of a class.

  • A class defines the properties and behaviors of objects.

  • An object is created based on a class, and can have its own unique values for the properties defined in the class.

  • Example: Class 'Car' may have properties like 'color' and 'model', while an object of class 'Car' could be 'red Ferrari'.

Frequently asked in, ,

Q12. What is datatype?

Ans.

Datatype is a classification of data which tells the compiler or interpreter how the programmer intends to use the data.

  • Datatypes specify the type of data that a variable can hold.

  • Examples include int (integer), string (text), bool (boolean), etc.

  • Different programming languages have different datatypes and rules for their usage.

Q13. What is inheritance?

Ans.

Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.

  • Allows for code reusability by creating a new class based on an existing class

  • Derived class (child class) inherits attributes and methods from a base class (parent class)

  • Example: Class Car can inherit properties like color and methods like drive from class Vehicle

Frequently asked in, ,

Q14. What is array

Ans.

An array is a collection of similar data types stored in contiguous memory locations.

  • Arrays can be of any data type, including integers, floats, and objects.

  • Arrays are indexed starting from 0.

  • Arrays can be multidimensional, such as a 2D array.

  • Arrays can be dynamically resized using methods like Append or Resize.

  • Example: string[] names = {"John", "Jane", "Bob"};

Q15. diff btw c# and java

Ans.

C# is a language developed by Microsoft for the .NET framework, while Java is a language developed by Sun Microsystems.

  • C# is primarily used for Windows development, while Java is platform-independent.

  • C# uses properties and events, while Java uses getter and setter methods.

  • C# has delegates and events for event handling, while Java uses interfaces and classes.

  • C# has LINQ for querying data, while Java has streams and lambdas.

  • C# has automatic memory management with garbage collec...read more

Q16. All oops concept

Ans.

Object-oriented programming concepts like inheritance, encapsulation, polymorphism, and abstraction.

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

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

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

  • Abstraction: Hiding the complex implementation details and showing only the necessary features.

Interview Tips & Stories
Ace your next interview with expert advice and inspiring stories

Top Interview Questions for Junior .NET Developer Related Skills

Interview experiences of popular companies

3.7
 • 10.4k Interviews
3.7
 • 4.7k Interviews
3.5
 • 3.8k Interviews
3.9
 • 2.1k Interviews
3.3
 • 172 Interviews
3.7
 • 43 Interviews
View all

Calculate your in-hand salary

Confused about how your in-hand salary is calculated? Enter your annual salary (CTC) and get your in-hand salary

Junior .NET Developer Interview Questions
Share an Interview
Stay ahead in your career. Get AmbitionBox app
qr-code
Helping over 1 Crore job seekers every month in choosing their right fit company
65 L+

Reviews

4 L+

Interviews

4 Cr+

Salaries

1 Cr+

Users/Month

Contribute to help millions

Made with ❤️ in India. Trademarks belong to their respective owners. All rights reserved © 2024 Info Edge (India) Ltd.

Follow us
  • Youtube
  • Instagram
  • LinkedIn
  • Facebook
  • Twitter