CCDE: Cisco Certified Design Expert (Written) — Question 39

Why does EIGRP use queries?

Answer options

• A. to withdraw routing information from the network
• B. to find alternate loop-free paths that have been discarded due to split horizons
• C. to test known alternate paths and determine if they are loop-free
• D. to test for neighbor state when the network topology is in flux

Correct answer: B

Explanation

The correct answer is B, as EIGRP queries are specifically used to locate alternative loop-free paths that may have been removed from consideration due to split horizon rules. Option A is incorrect because queries do not withdraw information; they seek to discover existing paths. Option C is misleading as it implies testing paths rather than finding alternatives, and option D refers to checking neighbor states rather than the purpose of queries.