EC2 Dedicated host

 * You reserve an entire host on AWS cloud and you launch EC2 instances directly on it.

* it can help in a BYOL(bring your Own license) model or when you have strong regulatory, compliance or security requirements.

* it's overall more expensive and should not use it unless strongly required. you can also reserve dedicated hosts.

Hands for launching dedicated host:

Navigate to instances --> Dedicated Hosts

Click on Allocate a host, as shown below.                                                                                               

provide details:

1. choose instance type for dedicated host.
2. Available zone for the dedicated host.
3. allow instance auto-placement - basically an auto scale of dedicated EC2 instance option.
4. quality of dedicated EC2 instance.
5. finally click on Allocate host as highlighted below.