Which of the following technologies can be configured in a network that uses static routing to achieve Layer 3 interoperability, so that the local device can interoperate with the peer device and…

Question

Options

• ABFD multi-hop detection
• BStatic negotiation BFD
• CBFD single-hop detection
• DAdjust BFD parameters

• A
  13% (5)
• B
  76% (29)
• C
  3% (1)
• D
  8% (3)

Explanation

Static negotiation BFD (B) is correct because, in a static routing environment, there is no dynamic routing protocol (like OSPF or BGP) running between peers to help establish BFD sessions automatically. Static negotiation BFD solves this by allowing administrators to manually configure BFD session parameters (such as local and remote discriminators) on both devices, enabling BFD to detect static route failures even when peers may have limited or incompatible dynamic negotiation capabilities.

A (BFD multi-hop) is wrong because multi-hop BFD addresses how many IP hops separate devices, not the negotiation mechanism needed for static routing interoperability. C (BFD single-hop) is wrong because it only covers directly connected neighbors and still relies on dynamic session establishment that static routing environments cannot support independently. D (Adjust BFD parameters) is wrong because tuning timers/multipliers optimizes an existing BFD session - it doesn't establish interoperability in the first place.

Memory tip: Match the word "static" - static routing needs static (manual) BFD negotiation, because without a dynamic protocol running, someone has to manually tell each end who it's talking to.

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