JNCIS-SP: Juniper Networks Certified Specialist – Service Provider Routing (2023) — Question 40

Which BGP message type is used to re-advertise routes that have already been sent to a peer and acknowledged using TCP?

Answer options

• A. update
• B. keepalive
• C. notification
• D. refresh

Correct answer: A

Explanation

The correct answer is A, update, as this message type is specifically designed for re-advertising routes. The other options do not serve this purpose: B, keepalive, is for maintaining the BGP session; C, notification, is for error reporting; and D, refresh, is not a standard BGP message type.