With which DHCPv6 device role does a switch reject a DHCP Offer message?
- relay and server role
- client role
- server role
- relay role
Explanation: In network security features such as DHCPv6 Guard, switch ports are assigned specific roles to protect against rogue DHCPv6 servers. An interface configured with the client role is treated as a port where only DHCPv6 clients are connected. Consequently, the switch will reject and drop any "server-to-client" messages—such as DHCP Offer (Advertisement) or Reply messages—if they arrive on a port designated as a client role, as these messages should only originate from trusted server or relay ports.
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