AWS (Amazon Web Services) Certification Practice Exam

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Which tenancy option allows your instance to run in a fully isolated hardware server?

Shared Tenancy
Dedicated Instance
Dedicated Hosts
On-Demand Instances

The correct answer is: Dedicated Hosts

The tenancy option that allows your instance to run on a fully isolated hardware server is Dedicated Hosts. This option provides you with physical servers dedicated solely to your use, ensuring that no other AWS customers' instances are running on the same hardware. This is beneficial for compliance requirements, software licensing, or when you need complete control over the physical resources. Dedicated Hosts allow you to allocate specific servers for your instances, which means you can manage the placement of the instances in relation to the hardware. This can help optimize performance for workloads that have particular licensing needs or that require consistent physical resources. In contrast, Shared Tenancy means that your instance runs on a physical server shared with other customers, which does not provide the level of isolation offered by Dedicated Hosts. Dedicated Instances operate in a shared environment as well but do ensure that they are not placed on the same physical server as instances from other accounts, providing some level of isolation, albeit still on shared hardware. On-Demand Instances, while flexible in terms of provisioning, also do not guarantee dedicated hardware as they can run on shared infrastructure.