How can these requirements be met using AWS?

A company needs to run a software package that has a license that must be run on the same physical host for the duration of Its use. The software package is only going to be used for 90 days. The company requires patching and restarting of all instances every 30 days

How can these requirements be met using AWS?
A . Run a dedicated instance with auto-placement disabled.
B. Run the instance on a dedicated host with Host Affinity set to Host.
C. Run an On-Demand Instance with a Reserved Instance to ensure consistent placement.
D. Run the instance on a licensed host with termination set for 90 days.

View Answer

Answer: B

Explanation:

Host Affinity is configured at the instance level. It establishes a launch relationship between an instance and a Dedicated Host. (This set which host the instance can run on) Auto-placement allows you to manage whether instances that you launch are launched onto a specific host, or onto any available host that has matching configurations. Auto-placement must be configured at the host level. (This sets which instance the host can run.) When affinity is set to Host, an instance launched onto a specific host always restarts on the same host if stopped. This applies to both targeted and untargeted launches. https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/how-dedicated-hosts-work.html

When affinity is set to Off, and you stop and restart the instance, it can be restarted on any available host. However, it tries to launch back onto the last Dedicated Host on which it ran (on a best-effort basis).