CCDE: Cisco Certified Design Expert (Practical) — Question 170

The Company XYZ network requires OSPF dead neighbor detection in a subsecond manner. However, the company network does not support BFD. Which other feature can be used to fulfill the design requirement?

Answer options

• A. fast hello
• B. DPD
• C. STP
• D. LFA

Correct answer: A

Explanation

The correct answer is A, fast hello, which allows for quicker detection of OSPF neighbors by sending hello packets at a faster rate. The other options do not provide the necessary speed for dead neighbor detection; DPD is not applicable in this context, STP is unrelated to OSPF operations, and LFA is focused on loop-free alternatives rather than neighbor detection.