Which of the following is NOT a packet type used by Enhanced Interior Gateway Routing Protocol (EIGRP)?
A. Query
B. Reply
C. Ack
D. Response
Correct Answer: D
Explanation:
Response is not a packet type used by EIGRP. The following are the packet types used by EIGRP:
– Hello/Ack: Establish neighbor relationships. The Ack packet is used to provide acknowledgement of a reliable packet.
– Update: Send routing updates.
– Query: Ask neighbors about routing information.
– Reply: Provide response to queries about routing information.
– Requests: Gain specific information from one or more neighbors.