200-301: Cisco Certified Network AssociateDemo

By Cisco · Question Mode

QuestionQ879

Network Fundamentals

Which statement about LLDP is correct?

  • A It is a Cisco proprietary protocol.
  • B It is configured in global configuration mode.
  • C The LLDP update frequency is a fixed value.
  • D It runs over the transport layer.
Explanation

LLDP is an IEEE 802.1AB Layer 2 discovery protocol used to advertise device identity, capabilities, and neighbors on a local network segment. On Cisco devices, enabling LLDP is done from global configuration mode with commands such as lldp run. It is not Cisco proprietary, it does not operate at the transport layer, and its transmit timer can be configured rather than being a fixed immutable value.

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