CompTIA Cloud+ (CV0-004)Cloud ArchitectureMedium
A company is migrating a legacy application to the cloud. The application has specific licensing requirements that tie software licenses to physical CPU cores. To comply with these licensing terms in a cloud environment, which compute option should the company choose?
- AReserved Instances
- BDedicated Hosts
- COn-Demand Instances
- DSpot Instances
Show answer & explanationAnswer & explanation
Correct answer: B. Dedicated Hosts
Dedicated Hosts provide physical server capacity dedicated to a single customer, allowing them to bring their existing software licenses that are tied to physical CPU cores or sockets, thus meeting the licensing requirements.
Why the other options are wrong
- A. Reserved Instances provide a billing discount for a commitment to usage, but do not guarantee dedicated physical hardware.
- C. On-Demand Instances run on shared infrastructure, making it impossible to guarantee dedicated physical cores for licensing.
- D. Spot Instances are for fault-tolerant workloads that can tolerate interruptions and also run on shared infrastructure.
Dedicated Hosts
Physical servers with EC2 instance capacity fully dedicated to your use.
- Provides visibility into physical host properties.
- Supports 'bring your own license' (BYOL) for certain software.
- Offers predictable performance and isolation.
Memory trick: Dedicated Hosts are your own private server room in the cloud, perfect for finicky licenses.