Which two steps must you perform on each device that is configured for IPv4 routing before you implement OSPFv3?(Choose two)
A. configure an autonomous system number
B. configure a loopback interface
C. configure a router ID
D. Enable IPv6 on an interface
E. Enable IPv6 unicast routing
Answer is DE.
Prerequisites for Implementing OSPFv3
Complete the OSPFv3 network strategy and planning for your IPv6 network. For example, you must decide whether multiple areas are required.
Enable IPv6 unicast routing.
Enable IPv6 on the interface.
Configure the IP security (IPsec) secure socket application program interface (API) on OSPFv3 in order to enable authentication and encryption.
Before you can use the IPv4 unicast address families (AFs) in OSPFv3, you must enable IPv6 on a link, although the link may not be participating in IPv6 unicast AF.
With the OSPFv3 Address Families feature, you may have two device processes per interface, but only one process per AF. If the AF is IPv4, you must first configure an IPv4 address on the interface, but IPv6 must be enabled on the interface.
Agreed, and the answer just for EIGRPv6
It’s actually D & E.
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipv6/configuration/xe-3s/ipv6-xe-36s-book/ip6-ospf.html
Agreed
Agreed = D & E
Why? OSPFv3 was created for IPv6.
Router ID only needed when “No” IPv4 devices are configured. This question implies there are IPv4 devices configured.
Correct D, E
link https://itexamanswers.net/ccna-200-125-exam-ospf-questions-2-with-answers.html 6-th question