An application must be redundant within the same geographic AWS area.
Review the relationship between Regions and Availability Zones.
Which statement is correct?
A Region is a geographic AWS area made up of multiple isolated Availability Zones, allowing workloads to be separated across facilities.
Detailed explanation
A Region contains multiple AZs designed for independent facilities and fault isolation.
A Region contains multiple AZs designed for independent facilities and fault isolation.
AZs are designed with independent facilities, power, and networking rather than one shared building.
AZs are designed with independent facilities, power, and networking rather than one shared building.
An AZ is a smaller location inside one Region; it does not group multiple Regions.
An AZ is a smaller location inside one Region; it does not group multiple Regions.
They are different levels of the AWS global infrastructure hierarchy.
They are different levels of the AWS global infrastructure hierarchy.
Check official documentation
Compare the following points with the official documentation.
AWS Regions and Availability Zonesの公式説明を確認する。
What to confirm
RegionとAZの階層と障害分離の関係を説明できる。
Key points
- AWS Region
- Availability Zone
- Fault isolation
Notes
- Environment: AWS公式Global Infrastructureの確認
- Confirm current capabilities and terminology in the official AWS documentation.
Foundation review
Infrastructure hierarchy
Region and AZ are related but different scopes, and multi-AZ placement improves facility-level resilience.
Physical independence
Independent power and networking help limit the blast radius of an AZ failure.