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N10-009 · Question #66

Which of the following describes the best reason for using BGP?

The correct answer is C. Exchanging router updates with a different ISP. BGP (Border Gateway Protocol) is used for routing data between different ISPs, making it essential for the functioning of the internet. Its primary use is for exchanging routing information between autonomous systems, especially different ISPs. Preventing loops within a LAN is…

Submitted by fernanda_arg· Mar 6, 2026Network implementation

Question

Which of the following describes the best reason for using BGP?

Options

  • APreventing a loop within a LAN
  • BImproving reconvergence times
  • CExchanging router updates with a different ISP
  • DSharing routes with a Layer 3 switch

How the community answered

(20 responses)
  • A
    5% (1)
  • C
    90% (18)
  • D
    5% (1)

Explanation

BGP (Border Gateway Protocol) is used for routing data between different ISPs, making it essential for the functioning of the internet. Its primary use is for exchanging routing information between autonomous systems, especially different ISPs. Preventing loops within a LAN is handled by protocols like Spanning Tree Protocol (STP), while improving reconvergence times and sharing routes with a Layer 3 switch are functions of other protocols or internal mechanisms.

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