Designing Cisco Enterprise Networks (ENSLD) — Question 58

A customer with an IPv4 only network topology wants to enable IPv6 connectivity while preserving the IPv4 topology services. The customer plans to migrate IPv4 services to the IPv6 topology, then decommission the IPv4 topology. Which topology supports these requirements?

Answer options

• A. dual stack
• B. 6VPE
• C. 6to4
• D. NAT64

Correct answer: A

Explanation

The dual stack topology allows for simultaneous support of both IPv4 and IPv6, enabling a smooth transition while maintaining existing services. Options like 6VPE and 6to4 are specific to certain scenarios and do not provide the same level of service integrity and flexibility during the migration. NAT64 is primarily for IPv6 clients to communicate with IPv4 servers, not for preserving IPv4 topology services during a migration.