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ANS-C01Domain 2: Network ImplementationDNS & Edge RoutingmediumSingle choice

An ALB must route api.example.com/images/* to the image service AND api.example.com/* to the API service. How are listener rules evaluated?

A.By rule number — lowest priority number wins, first match applies

Priority order, first match. Correct.

B.Longest match always wins regardless of priority

No longest-match semantics — pure priority order.

C.Host conditions always beat path conditions

No condition-type precedence — just rule priority.

D.Rules can't combine host and path conditions

Conditions compose freely — ANDed within a rule.

Why this answer

ALB listener rules evaluate in ascending priority order — first match wins, then the default rule. You ORDER rules so specific paths (images) evaluate before general ones. Conditions CAN combine host + path + headers + methods + query + source IP.

Correct answer: A · Last reviewed 2026-11-05

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