Yudiz Solutions DOT NET Developer Interview Questions, Process, and Tips

Q1. Almost asked the basics of .net, c#, ADO. NET, SQL
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Q2. Difference between ref and out keywords?
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The ref and out keywords are used in C# to pass arguments by reference instead of by value.
• The ref keyword is used to pass a variable by reference, allowing the called method to modify the value of the variable.

• The out keyword is similar to ref, but it is used when the called method needs to assign a value to the variable being passed.

• The ref keyword requires the variable to be initialized before passing it to the meth...read more
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Q3. Overloading and overriding concept and explanation ?
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Overloading is having multiple methods with the same name but different parameters. Overriding is implementing a method in a derived class with the same name and signature as in the base class.
• Overloading allows a class to have multiple methods with the same name but different parameters.

• Overriding allows a derived class to provide a different implementation of a method that is already defined in the base class.

• Overloa...read more
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Q4. SQL join queries with one example ?
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SQL join queries are used to combine rows from two or more tables based on a related column between them.
• Join queries are used to retrieve data from multiple tables in a single query.

• Common types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.

• Join conditions are specified using the ON keyword, which defines the column(s) to join on.

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = ta
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Q5. ADO .NET database calling steps ?
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ADO .NET database calling steps involve establishing a connection, creating a command object, executing the command, and handling the results.
• Establish a connection to the database using a connection string

• Create a command object to specify the SQL query or stored procedure to be executed

• Execute the command to retrieve or modify data in the database

• Handle the results by reading data from a DataReader or updating data u
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Aptitude questions with 2-3 coding questions

Q1. Input-wwwrrrrttttuu Output - w3r4t4u2
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Q2. Interpreter vs compiler
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Interpreter executes code line by line, compiler translates code into machine code before execution.
• Interpreter translates code into machine code line by line during runtime

• Compiler translates code into machine code before execution

• Interpreted languages include Python, JavaScript

• Compiled languages include C, C++
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