Q: 8
GRE is a Layer 2 VPN encapsulation technology that encapsulates packets of certain data link layer
protocols so that the encapsulated packets can be transmitted over an IP network.
Options
Discussion
False . GRE operates at Layer 3 so it's not a native Layer 2 VPN tech. The question mixes it up-GRE tunnels IP packets, not typical L2 frames unless you do stuff like EoGRE which isn't standard GRE. Correct me if I'm missing something but pretty sure this is the logic.
False . Had something like this in a mock, GRE is a Layer 3 tunneling protocol, not a Layer 2 VPN. The question tries to trick you by calling it L2 but it's really not unless you specifically use EoGRE which is a different scenario. Agree?
My vote is False. Most official guides say GRE is Layer 3 tunneling, not true Layer 2 VPN. Practice tests usually make this distinction clear too.
False tbh, GRE works at Layer 3 and is used to tunnel different network layer protocols over IP, not really a Layer 2 VPN by design. It can transport Layer 2 traffic with extensions like EoGRE but that's not what plain GRE does. I think B is right here.
False . GRE is Layer 3, not a true Layer 2 VPN. The question mixes up the protocol category.
Wouldn't this be False? GRE works at Layer 3, it isn't really a Layer 2 VPN tech. Encapsulates network layer, not data link layer, unless you're using something like EoGRE which is different. Am I missing a specific Huawei use case here?
False
False tbh, GRE's main function is Layer 3 tunneling not Layer 2 VPN.
Nah, the trick is in calling GRE a Layer 2 VPN, which it's not. So this one should be False since GRE works at Layer 3 mainly. Easy to mix up with L2TP I think.
Probably False, since GRE operates at Layer 3 and isn’t really classified as a Layer 2 VPN like L2TP or VPLS. Even if GRE can carry some Layer 2 traffic in certain setups, by protocol definition it’s not a L2 encapsulation. Correct me if I’m missing some Huawei-specific twist.
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