There are two reliable transmission modes and fast transmission modes for Network Expansion Functions establishing SSL VPN tunnels. Which of the following description about these two methods are wrong?
A . In the reliable transmission mode, SSL VPN encapsulates packets using the SSL protocol and uses the TCP protocol as the transmission protocol.
B . In the fast transmission mode, SSL VPN encapsulates packets using the Quick UDP Internet Connections (QUIC) protocol and uses UDP as the transmission protocol.
C . In the reliable transmission mode, the remote users need to establish an SSL VPN tunnel with the virtual gateway before transmitting data.
D . In the fast transmission mode, the remote users does not need to establish an SSL VPN tunnel with the virtual gateway before transmitting data.
Answer: D