Spring Security Interview Questions – Practice & Strengthen Application Security
Practice Spring Security interview questions with clear answers. Learn authentication, authorization, filters, and modern security practices for real-world applications.
Top Spring Security Interview Questions for Freshers and Experienced Developers
Master Spring Security with practical interview questions. Explore authentication flows, authorization strategies, and secure application design with concise explanations.
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1
What is Spring Security and why is it used?
easybasicssecurity
Answer
Spring Security is a framework for securing Java applications.
Key concept: Authentication and authorization.
It protects endpoints, users, and data.
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2
What is authentication vs authorization?
easyauthbasics
Answer
Authentication verifies identity, authorization checks permissions.
Key concept: Identity vs access.
Example: Login vs role-based access.
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3
Explain SecurityFilterChain in Spring Security.
mediumfiltersarchitecture
Answer
Defines the sequence of filters applied to requests.
Key concept: Filter-based security.
Each filter handles specific security logic.
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4
What is the role of AuthenticationManager?
mediumauthenticationarchitecture
Answer
Processes authentication requests.
Key concept: Delegation.
Delegates to AuthenticationProvider.
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5
Explain AuthenticationProvider.
mediumauthenticationprovider
Answer
Validates user credentials.
Key concept: Pluggable authentication.
Example: DAOAuthenticationProvider.
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6
What is UserDetailsService?
mediumuserauthentication
Answer
Loads user-specific data.
Key concept: User lookup.
Returns UserDetails object.
