An access token is an object that describes the security context of a process or thread. The information in a token includes the identity and privileges of the user account associated with the process or thread. The security identifier (SID) for the user's account. SIDs for the groups of which the user is a member.
Keeping this in consideration, what is a token for remote access?
A Remote Access Soft Token is a device or program that provides a second factor of authentication to identify individuals.
What is the use of token?
A security token (sometimes called an authentication token) is a small hardware device that the owner carries to authorize access to a network service. The device may be in the form of a smart card or may be embedded in a commonly used object such as a key fob.
How does refresh token work?
A Refresh Token is a special kind of token that can be used to obtain a renewed access token —that allows accessing a protected resource— at any time. You can request new access tokens until the refresh token is blacklisted.