BGP establishes neighbor relationships through UDP interaction.

The correct answer is B. FALSE. B is correct because BGP (Border Gateway Protocol) establishes neighbor (peer) relationships using TCP, not UDP - specifically TCP port 179. BGP relies on TCP's reliable, connection-oriented delivery to ensure control messages (OPEN, UPDATE, KEEPALIVE, NOTIFICATION) are…

IPv4 Routing Technologies

Question

BGP establishes neighbor relationships through UDP interaction.

Options

ATRUE
BFALSE
C
D

How the community answered

(41 responses)

A
15% (6)
B
73% (30)
C
5% (2)
D
7% (3)

Explanation

B is correct because BGP (Border Gateway Protocol) establishes neighbor (peer) relationships using TCP, not UDP - specifically TCP port 179. BGP relies on TCP's reliable, connection-oriented delivery to ensure control messages (OPEN, UPDATE, KEEPALIVE, NOTIFICATION) are received and acknowledged, which is critical for routing stability.

A is wrong because UDP is connectionless and provides no delivery guarantees - BGP's session-oriented design fundamentally requires TCP's reliability and ordered delivery to function correctly.

Memory tip: Think "BGP = Big Guys Protocol = TCP 179." The number 179 is odd, just like the idea of using UDP for something as critical as inter-domain routing. If you remember TCP port 179, you'll never confuse this.

Topics

#BGP#TCP#neighbor relationships#routing protocol

Community Discussion

No community discussion yet for this question.

Full H12-821_V1.0 Practice