[Solved] In a token refresh system, what is the key function of the refresh token? — Ans: To obtain a new access token without requiring the user to re-authenticate | Rest API

Rest API - Authentication and Authorization

In a token refresh system, what is the key function of the refresh token?

ATo encrypt the access token for secure transmission

BTo authenticate the user during the initial login process

CTo revoke the access token when the user logs out

DTo obtain a new access token without requiring the user to re-authenticate

Step-by-Step Solution

Solution:

Step 1: Understand the purpose of tokens
Access tokens grant access to resources, but they expire quickly for security.
Step 2: Role of refresh tokens
Refresh tokens allow clients to request new access tokens without user re-login.
Final Answer:
To obtain a new access token without requiring the user to re-authenticate -> Option D
Quick Check:
Refresh tokens extend session without user input [OK]

Quick Trick: Refresh tokens renew access tokens silently [OK]

Common Mistakes:

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In a token refresh system, what is the key function of the refresh token?