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N10-009 · Question #18

Which of the following routing protocols uses an autonomous system number?

The correct answer is D. BGP. BGP (Border Gateway Protocol) uses an Autonomous System (AS) number for its operations. An AS is a collection of IP networks and routers under the control of a single organization that presents a common routing policy to the Internet. BGP is used to exchange routing information…

Submitted by chiamaka_o· Mar 6, 2026Networking concepts

Question

Which of the following routing protocols uses an autonomous system number?

Options

  • AIS-IS
  • BEIGRP
  • COSPF
  • DBGP

How the community answered

(26 responses)
  • A
    4% (1)
  • D
    96% (25)

Explanation

BGP (Border Gateway Protocol) uses an Autonomous System (AS) number for its operations. An AS is a collection of IP networks and routers under the control of a single organization that presents a common routing policy to the Internet. BGP is used to exchange routing information between different ASes on the Internet, making it the only protocol among the listed options that uses an AS number.

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