Designing Cisco Enterprise Networks (ENSLD) — Question 152

An architect must design an IPv6 migration solution for a corporation with remote offices to support:
* The customer has IPv4 peering with their service provider.
* IPv6 users need access to IPv4 and IPv6 resources.
* Existing content providers will migrate to IPv6 in the next two years.
* Users will be migrated in a phase-by-phase approach.
Which migration solution must the architect choose?

Answer options

Correct answer: D

Explanation

The dual-stack approach allows both IPv4 and IPv6 to operate simultaneously, making it ideal for a phased migration and ensuring users can access both IPv4 and IPv6 resources. NAT46 and NAT64 are not suitable here since they primarily translate between the two protocols rather than allowing both to coexist seamlessly, while tunneling does not support the same level of accessibility for both protocols.