A network administrator logs in to the HP VAN SDN Controller, which is configured to use a local Keystone server. What happens if the administrator’s login credentials are valid?

A network administrator logs in to the HP VAN SDN Controller, which is configured to use a local Keystone server. What happens if the administrator’s login credentials are valid?
A . The Keystone server sends both the controller and the administrator a token, which the administrator’s client includes with each request it sends to the controller
B . The Keystone server generates a token and sends the token to the controller which forwards a copy of the token to the administrator’s client.
C . The Keystone server sends a token to the controller which immediately allows the administrator access.
D . The Keystone server notifies the controller that the credentials are valid, and the controller generates a token and sends it to the client.

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Answer: C