在安装 vCenter插件前,哪几个端口不能被占用 A.162 B.23 C.8080 D.8542
https://pubs.vmware.com/vsphere-50/index.jsp?topic=%2Fcom.vmware.vsphere.install.doc_50%2FGUID-925370DD-E3D1-455B-81C7-CB28AAF20617.html比较两者得知，选c