In network troubleshooting it is important to know what upstream switch the ESXi host is connected to.
Which two features does ESXi provide to help identity the upstream switch? (Choose two.)
A.
Promiscuous mode
B.
DPM
C.
LLDP
D.
CDP
Explanation:
http://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/support/landing-pages/virtualsupport-day-best-practices-virtual-networking-june-2012.pdf
Correct CD
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.networking.doc/GUID-A1B145E9-6454-45C0-8E7E-71E04A3BC9FF.html
I agree with C and D being the correct answers.
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.networking.doc/GUID-A1B145E9-6454-45C0-8E7E-71E04A3BC9FF.html
When CDP or LLDP is enabled for a particular vSphere distributed switch or vSphere standard switch, you can view properties of the peer physical switch such as device ID, software version, and timeout from the vSphere Web Client.
LLDP = Link Layer Discovery Protocol
CDP = Cisco Discovery Protocol
DPM = Distributed Power Management