Inlogic Technologies Junior .NET Developer Interview Questions, Process, and Tips

Twenty technical multiple-choice questions: ten from general object-oriented programming, five from SQL, and five directly related to C#.

Q1. Can you provide a self-introduction?
Ans. 
I am a passionate Junior .NET Developer with experience in C#, ASP.NET, and SQL Server.
• Experienced in C#, ASP.NET, and SQL Server

• Passionate about software development

• Quick learner and team player
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Q2. What are the key concepts of Object-Oriented Programming (OOP)?
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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 ...read more
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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
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Q4. 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, instea...read more
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Q5. 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 retu...read more
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Q6. 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.
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Q7. 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
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Q1. Completely resume based questions. They will raise questions from web technology only if you mention it in your resume or else they won't get deeper in technical questions.
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