A company has a requirement of an active/active datacenter and wants to implement synchronous replication for all its storage services. The company is doing a proof of concept with a datacenter…

Synchronous storage replication requires extremely low latency between sites, as each write must be confirmed by both primary and secondary storage before completion. A distance of 200 miles (322 km) inherently introduces significant network latency, typically exceeding the acceptable limits for synchronous replication due to the speed of light, causing it to fail.

This choice is incorrect because synchronous replication itself is highly sensitive to latency, regardless of the applications using the storage.

While sufficient bandwidth is necessary, synchronous replication is more critically sensitive to latency than raw bandwidth, especially over long distances where high latency will prevent successful operation even with ample bandwidth.

The physical medium (e.g., fiber) is generally assumed to be fiber for such distances, and even if it were not, the primary limiting factor for synchronous replication over 200 miles would still be the speed-of-light delay (latency), not the specific physical connection type itself.