One of your customers has deployed a Layer 3 gateway in the untrusted network. Which gateway mode is appropriate for this customer？（）

A. The FCIP stack supports file-level storage for remote devices.
B. Both require high throughput with low latency and low jitter.
C. The purpose of FCIP is to provide connectivity between host and storage.
D. The iSCSI stack supports block-level storage for remote devices.
E. The purpose of iSCSI is to provide connectivity between separate wide-area SANs.

A. a higher fan-out ratio
B. fully redundant switches
C. 100 percent port efficiency
D. all ISLs contained within a single chassis
E. higher latency and throughput than a core-edge design switch