TOP C# Interview Questions and Answers Part 2 | Junior – Intermediate Developers



This video is the second video of this series that I go over the most repeated questions for the C# interview as a junior to intermediate C# developer.

First Part of this series : https://youtu.be/8TqRw_O7uwg

Support links:
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Like always make sure to read the questions and answers carefully, you don’t need to memorize them word by word but you need to have a general idea about them and make sure to follow the 3 steps that I mentioned in the first part to increase your chance of success.

If you are new to this channel, I am Sam and in this channel we will go over interview questions and other programming aspects and our goal is to help you to be successful in your interviews and computer science so don’t forget to hit the subscribe button and hit the notification bell to receive notifications when we release more videos like this.

If you want to support my work and get exclusive benefits you can go to https://patreon.com/learnwithsam or find the link to my patreon down in the description. You can have access to the pdf version of this interview question in my Patreon.
đź”— Patreon: https://patreon.com/learnwithsam

The answers to these questions are brief in 2 or 3 sentences and it is perfect for the interview so don’t forget to review them a day before to be on top of your mind.

So let’s start:

you can find the timeline of the part 2 C# interview questions video here:
00:09 Intro
00:25 Subscribe!
00:40 What is the Constructor Chaining in C#?
00:57 What’s the difference between the Array.CopyTo() and Array.Clone()?
01:12 What is Managed or Unmanaged Code?
01:31 What is Boxing and Unboxing in C#?
01:51 What is the difference between a struct and a class in C#?
02:17 What is the difference between ref and out keywords?
02:53 What are extension methods in C#?
03:13 What are sealed classes in C#?
03:22 What are partial classes?
03:40 What are the differences between IEnumerable and IQueryable?
04:00 What are Singleton Design Patterns?
04:15 What’s the Difference between the Is and As an operator in C#?
04:50 Can we have only a “try” block without a “catch” block in C#?
04:59 Describe dependency injection.
05:16 What are SOLID principles?
06:00 What is Tuple
06:05 What is Reflection in C#?
06:26 What is a Jagged Array in C#?
06:38 Compare Virtual methods and Abstract methods.
06:57 When do you implement IDisposable?
07:15 Explain Polymorphism?
07:35 Why use a lock statement in C#?
08:00 What is the “yield” keyword used for in C#?