Inogic Tech (India) DOT NET Developer Interview Questions and Answers

Q1. Write a program for factorial of a number using for loop?
Ans. 
Program to calculate factorial of a number using for loop
• Initialize a variable to store the factorial result

• Use a for loop to iterate from 1 to the given number

• Multiply the current value with the factorial result in each iteration

• Return the factorial result
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30 min aptitude quetiobs

2 coding questions where asked i simple logics

Q1. Technical interview
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Q1. Difference between async and await?
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Q2. Async defines, await pauses execution.
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Q1. Debugging Techniques, Types of Logs
Ans. 
Debugging techniques involve using logs to identify and fix issues in code.
• Types of logs include console logs, file logs, event logs, and trace logs.

• Debugging techniques include using breakpoints, stepping through code, and analyzing error messages.

• Logging frameworks like log4net and NLog can be used to generate logs for debugging purposes.
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Q2. Aptitude type questions
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Q3. Basic sql queries, sql injection
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Q4. Sessions and cookies
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Q1. What is garbage collection in .NET?
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Q2. Automatic memory management system.
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Q1. What is D/W array and ArrayList in .Net?
Ans. 
D/W array is a dynamic array in .Net that can grow or shrink in size. ArrayList is a collection class that can store objects of any type.
• D/W array is a resizable array that automatically adjusts its size as elements are added or removed.

• ArrayList is a collection class that can store objects of any type, allowing for flexibility in data storage.

• Example: D/W array - string[] myArray = new string[5]; ArrayList - ArrayList
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Q2. Array : Fixed size, type -safe. ArrayList : Dynamic size, not type-safe.
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Q1. What is the difference between readonly and const in C#?
Ans. 
readonly variables can be assigned a value either at the time of declaration or in the constructor, while const variables must be assigned a value at the time of declaration and cannot be changed.
• readonly variables can be assigned a value at runtime, while const variables must be assigned a value at compile time

• readonly variables can be assigned a value in the constructor, while const variables cannot

• const variables ar...read more
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Q2. Const is compile-time constant, while readonly is runtime constant.
Ans. 
const is compile-time constant, while readonly is runtime constant.
• const values are determined at compile time and cannot be changed during runtime

• readonly values can be assigned a value either at the declaration or in the constructor and can be changed at runtime

• const is used for values that are known at compile time, like mathematical constants

• readonly is used when the value needs to be initialized at runtime, like d
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