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Which option lists the information that is contained in a Cisco Discovery Protocol advertisement?
Correct Answer: A
Explanation/Reference: 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 de- vice 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 Contains a list of network prefixes to which the sending device can TLV forward IP packets. This information is in the form of the interface protocol and port number, for example, Eth 1/0. VTP Management Advertises the system's configured VTP management domain name- Domain TLV 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 fea- ture is implemented only for interfaces that support the IEEE 802.1Q protocol. Full/Half Duplex Indicates status (duplex configuration) of CDP broadcast interface. TLV Used by network operators to diagnose connectivity problems be- tween adjacent network elements. Reference: http://www.cisco.com/en/US/docs/ios/12_2/configfun/configuration/guide/fcf015.html