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Which statement about the relationship between AWS Regions and Availability Zones is correct?
AEvery AWS Region contains exactly one Availability Zone for simplicity
BAvailability Zones are virtual logical constructs with no physical separation
CEvery commercial AWS Region has at least 3 Availability Zones, and AZs in the same Region are physically separated but connected by low-latency private links
DAvailability Zones span multiple AWS Regions to provide global redundancy
Answer & Solution
Correct answer: C. Every commercial AWS Region has at least 3 Availability Zones, and AZs in the same Region are physically separated but connected by low-latency private links
Commercial AWS Regions are designed with a minimum of 3 AZs (most have more). Each AZ is in a separate physical location far enough apart to be on a different power grid/flood plain but close enough that AWS's private fiber gives single-millisecond latency between them. AZs never span Regions.
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