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
C and D, sure.
Source: https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.networking.doc/GUID-A1B145E9-6454-45C0-8E7E-71E04A3BC9FF.html
Switch discovery protocols help vSphere administrators to determine which port of the physical switch is connected to a vSphere standard switch or vSphere distributed switch.
vSphere 5.0 and later supports Cisco Discovery Protocol (CDP) and Link Layer Discovery Protocol (LLDP). CDP is available for vSphere standard switches and vSphere distributed switches connected to Cisco physical switches. LLDP is available for vSphere distributed switches version 5.0.0 and later.
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