A real-time bidding API (non-cacheable, dynamic TCP traffic) must reduce latency for global users hitting an ALB in one Region. CloudFront cannot cache this traffic. Which service improves performance using the AWS global network?
A.AWS Global Accelerator, which routes TCP/UDP traffic over the AWS network to the nearest healthy endpoint
Correct. Global Accelerator accelerates non-cacheable TCP/UDP traffic via the AWS backbone and anycast IPs.
B.Amazon CloudFront with a longer TTL
CloudFront helps cacheable content; longer TTL cannot cache dynamic API responses.
C.An additional S3 bucket in each Region
S3 does not serve a live API.
D.Amazon Macie traffic inspection
Macie is a data-discovery/security service, unrelated to latency.
Why this answer
AWS Global Accelerator provides static anycast IPs and routes TCP/UDP traffic over the AWS global network to the optimal regional endpoint — improving latency for dynamic, non-cacheable traffic where CloudFront caching does not help.
Correct answer: A · Last reviewed 2026-10-25
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