CCDE: Cisco Certified Design Expert (Practical) — Question 12

An architect receives a business requirement from a CTO that states the RTO and RPO for a new system should be as close as possible to zero. Which replication method and data center technology should be used?

Answer options

• A. synchronous replication over geographically dispersed dual data centers via MPLS
• B. synchronous replication over dual data centers via Metro Ethernet
• C. asynchronous replication over geographically dispersed dual data centers via CWDM
• D. asynchronous replication over dual data centers via DWDM

Correct answer: B

Explanation

The correct answer is B because synchronous replication ensures that data is replicated in real-time, which is essential for achieving near-zero RTO and RPO. Options A and C involve geographical dispersion, which introduces latency that can compromise the requirement for minimal RTO and RPO, while option D uses asynchronous replication, which is not suitable for the same reason.