Which option lists the information that is contained in a Cisco Discovery Protocol advertisement?
A.
native VLAN IDs, port-duplex, hardware platform
B.
native VLAN IDs, port-duplex, memory errors
C.
native VLAN IDs, memory errors, hardware platform
D.
port-duplex, hardware platform, memory errors
Explanation:
Type-Length-Value fields (TLVs) are blocks of information embedded in CDP advertisements. Table 21 summarizes the TLV definitions for CDP advertisements.
Table 21 Type-Length-Value Definitions for CDPv2
TLV
Definition
Device-ID TLV
Identifies the device name in the form of a character string.
Address TLV
Contains a list of network addresses of both receiving and sending devices.
Port-ID TLV
Identifies the port on which the CDP packet is sent.
Capabilities TLV
Describes the functional capability for the device in the form of a device type, for example, a switch.
Version TLV
Contains information about the software release version on which the device is running.
Platform TLV
Describes the hardware platform name of the device, for example, Cisco 4500.
IP Network Prefix TLV
Contains a list of network prefixes to which the sending device can forward IP packets. This information is in the form of the interface protocol and port number, for
example, Eth 1/0.VTP Management Domain TLV
Advertises the system’s configured VTP management domain name-string. Used by network operators to verify VTP domain configuration in adjacent network
nodes.
Native VLAN TLV
Indicates, per interface, the assumed VLAN for untagged packets on the interface. CDP learns the native VLAN for an interface. This feature is implemented only
for interfaces that support the IEEE 802.1Q protocol.
Full/Half Duplex TLV
Indicates status (duplex configuration) of CDP broadcast interface. Used by network operators to diagnose connectivity problems between adjacent network
elements.
http://www.cisco.com/en/US/docs/ios/12_2/configfun/configuration/guide/fcf015.html