Which IPv6 address assignment methods are used to configure hosts automatically?

• A. SLAAC and DHCPv6
• B. SLAAC only
• C. DHCPv6 only
• D. DHCP and SLAAC

Answer: (A)

IPv6 supports automatic host configuration through two mechanisms: SLAAC and DHCPv6. SLAAC lets a host build its own address by combining the network prefix learned from router advertisements with an interface identifier, enabling quick, stateless address autoconfiguration without a server. DHCPv6 can assign addresses in a stateful manner and also provide additional configuration data such as DNS servers and domain search lists. Many networks use SLAAC for automatic addressing and DHCPv6 to supply other settings, or to assign addresses in a centralized way. Because both methods contribute to automatic configuration, using them together is the most complete approach for configuring hosts automatically.