Failed to install Fusion Compute system using tools, what are the possible reasons? (Multiple choices)

Failed to install Fusion Compute system using tools, what are the possible reasons? (Multiple choices)
A . The CNA host does not have PXE enabled
B . Large disk space on the CNA host
C . There are other DHCP servers on the network
D . Install and execute the network firewall settings between the PC and the CNA host

Answer: ABCD