Spring Security in Spring boot Interview Questions and Answers | Part -1 | Code Decode

In this video of code decode we have covered Spring security Interview questions and answers for experienced and freshers in Spring boot
Spring Security Interview Questions part 2
https://www.youtube.com/watch?v=DhBqC_Vy28o&ab_channel=CodeDecode

We have covered :

Why Spring Security is needed at first place?
We have seen how to answer this question through an analogy of layers of server. We can answer this in Spring Security Interview Questions.

How Spring Security is used to secure your application at a high level?
To answer this too, we have used an analogy of resort and receptionist which helped us understand how spring security in spring boot works and why.

We also have seen Types of Authentication
Knowledge Based Authentication
Possession Based Authentication
Multifactor Authentication

We have seen What are core key concepts of Spring security Interview Questions.
Authentication
Authentication
Principal
Granted Authority
Roles

If given a CRUD or simple spring boot app , How will you implement the Spring security ?
The First and only step to implement Spring security in any spring boot Application is by adding following starter dependency in Pom. Xml

And that’s all.
You have created a reception(filter) in front of your hotel (application). Who will do authentication n authorization for you.
It will also do validations for you bcz now u have ur receptionist in place to ask for your authentication.
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