Which of the following descriptions of the network expansion process in SSL VPN is incorrect?

Question

Options

• AThe remote user's local PC will automatically generate a virtual network card. The virtual gateway
• BThe remote user sends a service request message to the server on the enterprise intranet, and
• CIn reliable transmission mode, SSL VPN uses SSL protocol to encapsulate messages and uses
• DAfter the network expansion function is triggered, an SSL VPN tunnel needs to be established

• A
  14% (4)
• B
  7% (2)
• C
  76% (22)
• D
  3% (1)

Explanation

Option C is incorrect because in reliable transmission mode, SSL VPN network extension tunnels traffic over TCP - not UDP. SSL/TLS itself runs over TCP, which provides the ordered, acknowledged delivery that makes the mode "reliable." UDP (or DTLS) is the transport used in the unreliable/fast mode, where speed is prioritized over guaranteed delivery; swapping these two is the error in option C.

The distractors are all accurate: A correctly describes that a virtual NIC (tunnel adapter) is automatically created on the remote client - this is a defining feature of the network extension mode. B correctly describes the traffic flow where the remote user's PC sends requests directly to intranet servers as if locally connected. D correctly states that an SSL VPN tunnel must first be established before any data flows through the extension.

Memory tip: Anchor "reliable = TCP" - TCP spells out Trust-Confirmed Packets (acknowledgments + ordering), so the reliable mode rides TCP. Any question flipping reliable↔UDP is the trap.

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