Section 4 – Install and Configure vCenter Server Objective 4.4 – Configure Access Control QUESTION 45 To open a Port on a Host’s Firewall, what command is used? A.esxcfg-firewall -o B.esxcfg-firewall -d C.esxcfg-firewall -q D.esxcfg-firewall -e Answer: A Explanation: Open a port: esxcfg-firewall -o 465,tcp,out,out-smtps