Which of the following is one difference between CDP and LLDP?

Which of the following is one difference between CDP and LLDP?

• CDP can gather information from routers, switches, and wireless APs, whereas LLDP can only gather information from routers and switches.
• CDP can obtain both Layer 2 and Layer 3 information, whereas LLDP
  can only obtain Layer 2 information.
• CDP is a proprietary protocol, whereas LLDP is a vendor-neutral
  protocol.
• CDP is enabled on an interface using two commands, while LLDP
  requires only one command.

Explanation: LLDP requires two commands to configure an interface: lldp transmit and lldp receive.

Exam with this question: 10.8.4 Module Quiz - Network Management