AWS Certified Cloud Practitioner — Question 591

What are characteristics of Availability Zones? (Choose two.)

Answer options

• A. All Availability Zones in an AWS Region are interconnected with high-bandwidth, low-latency networking.
• B. Availability Zones are physically separated by a minimum of distance of 150 km (100 miles).
• C. All traffic between Availability Zones is encrypted.
• D. Availability Zones within an AWS Region share redundant power, networking, and connectivity.
• E. Every Availability Zone contains a single data center.

Correct answer: A, C

Explanation

Availability Zones (AZs) in an AWS Region are connected to each other via high-bandwidth, low-latency fiber-optic networking, and all inter-AZ traffic is automatically encrypted at the physical layer. AZs do not share power or networking infrastructure to ensure fault isolation, they are typically separated by a meaningful distance (but not a strict 100-mile minimum), and an AZ can consist of multiple data centers rather than just one.