Intelizign Lifecycle Services Software Developer Interview Questions, Process, and Tips

Programme for synchronized method need to run the thread one at a time? Programme for palindrome if not make a palindrome?

Q1. What is diff b/w authication and authorization
Ans. 
Authentication verifies the identity of a user, while authorization determines what actions a user is allowed to perform.
• Authentication confirms the identity of a user through credentials like username and password.

• Authorization determines the permissions and access levels of a user once they are authenticated.

• Example: Logging into a system with a username and password is authentication, while being able to view certai...read more
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Q2. How to do you handle exception in the spring boot i
Ans. 
Exception handling in Spring Boot is done using @ExceptionHandler, @ControllerAdvice, and @ResponseStatus annotations.
• Use @ExceptionHandler annotation to handle exceptions at the controller level

• Use @ControllerAdvice annotation to handle exceptions globally across multiple controllers

• Use @ResponseStatus annotation to specify the HTTP status code for the exception response
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Q3. How to do you refresh tokens
Ans. 
Refresh tokens are used to obtain a new access token after the original token expires.
• Refresh tokens are typically issued along with access tokens during authentication.

• To refresh a token, the client sends a request to the authorization server with the refresh token.

• The authorization server validates the refresh token and issues a new access token.

• Refresh tokens are more secure than storing user credentials for re-auth...read more
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