Use only the amount of computing resources needed from a cloud provider over the Internet.
Which statement appropriately describes a public cloud?
In a public cloud, the provider operates a shared physical platform and tenants use logically isolated resources.
Detailed explanation
Incorrect. Owning all physical servers on site is closer to on-premises operation.
Correct. The provider owns and operates the shared platform while tenants receive logically isolated resources.
Incorrect. A public cloud generally uses shared infrastructure rather than exclusive physical networking.
Incorrect. Public cloud services commonly use Internet connectivity, although access controls still apply.
Try it yourself
An example you can run in a temporary verification environment.
printf '%s\n' 'provider-owned shared infrastructure with logical isolation'Expected result
provider-owned shared infrastructure with logical isolationKey points
- Shared platform
- Logical isolation
- Provider operation
Notes
- Environment: クラウド形態の概念確認
- Command output formatting can vary slightly by distribution or tool version.
- Run the example in a temporary directory or process when possible.
Foundation review
Sharing and isolation
Physical infrastructure can be shared while authentication, networking, and virtualization provide logical isolation.
Service scope
The service model determines which layers the customer can configure and operate.