Which statement is true about iSCSI?

Which statement is true about iSCSI?

• A. Lower cost, built using Ethernet switches (<10 Gbps)
• B. Requires jumbo frames on every network
• C. Uses Fibre Channel protocol on top of Ethernet
• D. Does not rely on TCP/IP networking

Answer: (A)

iSCSI carries SCSI commands over TCP/IP on Ethernet networks, which lets you build a SAN using standard Ethernet gear instead of a Fibre Channel fabric. That setup is typically cheaper because you’re leveraging commodity switches and the familiar TCP/IP stack, making the statement about lower cost with Ethernet switches the best fit. Jumbo frames can improve performance for large block transfers, but they aren’t mandatory on every network, so that isn’t a universal truth. iSCSI uses the TCP/IP protocol stack to transport SCSI, not the Fibre Channel protocol, and it does rely on TCP/IP networking, so the other statements don’t describe how iSCSI operates.

iSCSI carries SCSI commands over TCP/IP on Ethernet networks, which lets you build a SAN using standard Ethernet gear instead of a Fibre Channel fabric. That setup is typically cheaper because you’re leveraging commodity switches and the familiar TCP/IP stack, making the statement about lower cost with Ethernet switches the best fit. Jumbo frames can improve performance for large block transfers, but they aren’t mandatory on every network, so that isn’t a universal truth. iSCSI uses the TCP/IP protocol stack to transport SCSI, not the Fibre Channel protocol, and it does rely on TCP/IP networking, so the other statements don’t describe how iSCSI operates.