Which statement is consistent with the material regarding DHCPv6 completion, SLAAC interaction, and IPv6 broadcast behavior?

• A. DHCPv6 completion uses Request from client and Reply from server
• B. DHCPv6 and SLAAC cannot be used together
• C. IPv6 supports broadcast on all links
• D. Router flags do not influence DHCPv6 and SLAAC usage

Answer: (A)

When DHCPv6 finishes its configuration, the client moves from requesting to completing the setup by sending a Request and receiving a Reply. The Request from the client asks the DHCPv6 server to confirm the specific IPv6 address and any other configuration the client needs, and the server replies with a Reply that contains those assignments. This Request–Reply exchange is how the DHCPv6 completion is carried out, so the statement about the completion using a Request from the client and a Reply from the server is the right fit.

SLAAC interaction on the same link means devices can configure addresses either by SLAAC alone or with DHCPv6 aiding other information, and the router’s flags (the M and O bits) guide how DHCPv6 is used alongside SLAAC. But regardless of SLAAC, the completion stage still follows the client Request and server Reply pattern.

Remember that IPv6 doesn’t use broadcast at all; it relies on multicast for discovery and other communication. That’s why a statement claiming IPv6 supports broadcast on all links is incorrect. Router flags do influence how DHCPv6 and SLAAC are used, so a choice asserting no influence there would also be off the mark.