A storage administrator needs to connect a server to a shared storage array. Which interface type is appropriate for this connection?

The most appropriate interface type for connecting a server to a shared storage array is Fibre Channel. Fibre Channel is a high-speed network technology primarily used to connect storage devices in a storage area network (SAN). It excels in environments requiring high availability, low latency, and high bandwidth, making it ideal for shared storage systems.

While SAS (Serial Attached SCSI) is a robust interface for connecting direct-attached storage and can be used for point-to-point connections with storage devices, it does not provide the same level of scalability and distance capabilities as Fibre Channel when linking a server to a shared storage array. SAS is great for internal connections within servers or for direct attachment but isn't designed for the type of networked storage setup typically associated with shared storage arrays.

USB is generally unsuitable for enterprise storage environments due to its limited speed and distance capabilities. SCSI, while historically important in storage connections, has largely been replaced by more modern interfaces in shared environments, with Fibre Channel and iSCSI becoming the predominant technologies.

Overall, Fibre Channel stands out as the best choice for connecting servers to shared storage arrays due to its specialized design for high-performance, scalable networking in storage environments.