Cisco
400-007 · Question #243
400-007 Question #243: Real Exam Question with Answer & Explanation
The correct answer is B: After the initial timer exchange, R1 sets its transmission rate to the R2 Required Min RX interval. See the full explanation below for the reasoning.
Question
Two routers R1 and R2 are directly connected through an Ethernet link. Both routers are running OSPF over the Ethernet link and OSPF has been registered with BFD. R1 has been set up to transmit BFD at a 50 ms interval, but R2 can receive only at a 100 ms rate due to platform limitations. What does this mean?
Options
- AAfter the initial timer exchange, R2 sets its transmission rate to the R1 Desired Min TX interval
- BAfter the initial timer exchange, R1 sets its transmission rate to the R2 Required Min RX interval
- CTimers renegotiate indefinitely, so the timer exchange phase never converges
- DR2 sets the P-bit on all BFD control packets until R2 sends a packet with the F-bit set
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