Which 3 statements describe differences between Storage Area Network (SAN) and Network Attached Storage (NAS) solutions

Question

i. SAN is generally more expensive but provides higher performance
ii. NAS uses TCP/IP for communication between hosts and the NAS server
iii. NAS requires additional hardware on a host: a host bus adapter for connectivity
iv. SAN uses proprietary protocols for communication between hosts and the SAN fabric

Answer 1

ii. NAS uses TCP/IP for communication between hosts and the NAS server