Alcatel-Lucent NRS I – Layer 2 Switching and Spanning Tree — Question 9

Which of the following is NOT a BGP message type?

Answer options

• A. Route-Refresh
• B. OpenSent
• C. Notification
• D. Update
• E. Keepalive

Correct answer: B

Explanation

The correct answer is B, OpenSent, as it refers to a state in the BGP session establishment process rather than a message type. The other options, including Route-Refresh, Notification, Update, and Keepalive, are all recognized BGP message types used for various purposes in the protocol.