Annet Technologies DOT NET Developer Interview Questions and Answers

Q1. Linked list (detect loop, reverse, delte a node) tree (height, DFS) graph theory concept C++ basic questions
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Q1. Total 3 round of Technical interviews.
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It was combination of mcqs and 2 coding questions

Q1. What is oops concepts
Ans. 
Object-oriented programming concepts that focus on objects and classes for better code organization and reusability.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

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

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

• Abstraction: Hiding the complex implementation det...read more
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Q2. Difference between java nd putjon
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Java is a programming language while Putjon is not a recognized term in software development.
• Java is a widely used programming language for developing applications.

• Putjon is not a recognized term in software development, it may be a typo or a specific term not commonly used.

• There is no direct comparison between Java and Putjon as they are not related.
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Q3. Tell about ur project
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Q1. What are your strengths
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Q2. What is ur greatest comeback
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Round duration - 120 Minutes
Round difficulty - Medium

I was MCQ + Coding round, Their were MCQ Based on DSA, Aptitude and 2 easy coding questions.

Q1. 
Ninja Competition Problem Statement
Ninja is organizing a coding competition where two teams compete at a time. To keep it fair and interesting, both teams must have an equal number of members. Ninja’s ta...read more
Ans. 
Check if Ninja can create two teams with equal members given an integer N and its divisors.
• Iterate through all divisors of N and assign members to the first or second team based on whether the divisor is even or odd.

• Keep track of the total members in each team and check if they are equal at the end.

• Return true if the total members in both teams are equal, false otherwise.
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Q2. 
Help Bob Out! - Validating IFSC Code
Bob has just turned 18 and opened a bank account. Being inexperienced with banking, Bob needs your help to validate whether an IFSC code provided by his bank is valid.
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Ans. 
Validate IFSC code based on given rules and return True or False for each test case.
• Check if the code is 11 characters long.

• Verify the first four characters are uppercase alphabets.

• Ensure the fifth character is '0'.

• Validate that the last six characters are alphanumeric.
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Round duration - 50 Minutes
Round difficulty - Easy

The nature of the interviewer was very kind. The test was proctored, our webcam and mic were on, and shared my screen.

Round duration - 50 minutes
Round difficulty - Easy

The nature of the interviewer was very kind. The test was proctored, our webcam and mic were on, and shared my screen.

Coding test was medium to hard leetcode problems.

Q1. String palindrome
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Q2. Find all anagrams in a string
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Find all anagrams in a string
• Create a hashmap to store the frequency of characters in the input string

• Iterate through the input string and check if the frequency of characters matches the hashmap for each substring of the same length

• Store the substrings that are anagrams in an array and return it
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Q1. Questions related to my project ,OOPS,then questions related to every skills in my resume (C# ,SQL , entity framework core)
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Q1. Linq query , SQL questions,challenge faced in project
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Q1. Authentication,Authorization,Dependency Injection,
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Q1. Almost asked the basics of .net, c#, ADO. NET, SQL
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Q2. Difference between ref and out keywords?
Ans. 
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 ?
Ans. 
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 ?
Ans. 
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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