What are two ways to view the DNS settings for an ESXi 6.x host? (Choose two.)
A. Use the vicfg-dns command from the vSphere Management Appliance.
B. View the /etc/resolv.conf file on the ESXi host.
C. Use vicfg-dns command on the ESXi host.
D. View the /etc/dns.conf file on the ESXi host.
B&C
https://pubs.vmware.com/vsphere-51/index.jsp?topic=%2Fcom.vmware.vcli.ref.doc%2Fvicfg-dns.html
I would say B and C.