A company wants to bring existing software that is licensed per physical server to AWS. The company requires exclusive use of a physical server and must be able to view and control physical attributes such as the number of sockets and cores. Which Amazon EC2 purchasing option BEST meets these requirements?

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Select an answer
CorrectD

Explanation

Question Overview

A question asking to select the purchasing option suited for physical server exclusivity and license bring-in.

Requirements to satisfy
  • 1「exclusive use of a physical server」A customer-dedicated physical host = Dedicated Host
  • 2「licensed per physical server」Per-socket/core license bring-in (BYOL)
  • 3「physical attributes such as the number of sockets and cores」Visibility and control over socket and core counts are required
Per-option explanation
AIncorrect

Use a hardware-dedicated instance (Dedicated Instance).

A Dedicated Instance also provides exclusive execution on hardware that is not shared with other customers.

However, it does not provide visibility into the physical server's socket or core count, nor does it offer control over host placement. For per-physical-server license requirements, Dedicated Hosts are required. This is incorrect.

BIncorrect

Use an On-Demand Instance.

An On-Demand Instance is an option that provides flexible usage on shared hardware.

It does not offer exclusive use of a physical server or control over physical attributes, so this is incorrect.

CIncorrect

Use a Reserved Instance.

A Reserved Instance is a pricing option that provides a significant discount in exchange for a long-term commitment, and does not necessarily imply exclusive use of a physical server.

It does not meet the requirement to view and control physical attributes, so this is incorrect.

DCorrect

Use a Dedicated Host.

This is correct. A Dedicated Host is a purchasing option that allocates an entire physical server exclusively to the customer. Because physical attributes such as the socket count, core count, and host ID are visible, it is well suited for bringing in existing software licensed per physical server (per socket/core) — also known as BYOL (Bring Your Own License).

Key Takeaway

'Physical server exclusivity,' 'per-socket/core licensing,' and 'BYOL' all point to Dedicated Host. The closely related Dedicated Instance runs on dedicated hardware but cannot view socket/core counts or control host placement — that is the decisive difference. Cost-optimization options (Reserved/On-Demand/Spot) serve a different purpose.

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