A.

1. Online Mode : Initial access to the License Server once, then no need to connect it. After Verificatioin the License Key, internet is not required.

 

2. Offline Mode :  Input the key without Internet.

 

3. Cloud Mode : It has to keep opening internet access, because Admin service keeps connection to the license server every day. limited time is 24 hours. If the network is disconnected and flows without recover it, ISS services goes out (Status : Demo Expired) if the ISS service restarts.