An enterprise has plans to start adding IPv6 support. For the first year, the IPv6 will be in
small pockets spread around the existing large IPv4 network, with occasional IPv6 traffic
while applications teams test IPv6-enabled servers and applications. Which of the following
tools would be most appropriate?

A.
Native IPv6

B.
Point-to-point tunnels

C.
Multipoint tunnels

D.
NAT-PT

Explanation:
Native IPv6 makes the most sense when the IPv6 deployment is pervasive, with traffic loads
heavy or at least steady. Point-to-point tunnels work best when IPv6 is needed in only a
subset of sites but also when the traffic should be somewhat regular or with higher volumE.
Multipoint tunnels also work well when IPv6 is needed in a subset of sites, but it is more
appropriate when the traffic is more occasional and lower volumE. Finally, NAT-PT is useful
when an IPv4-only host needs to communicate with an IPv6-only host.