CompTIA Cloud+ (CV0-004)DeploymentMedium
A cloud engineer is deploying a new service that requires a highly available and scalable block storage solution for virtual machines. The storage needs to be directly attached to the VMs and provide low-latency access for I/O-intensive workloads. Which storage deployment option should the engineer choose?
- AArchive Storage
- BBlock Storage
- CObject Storage
- DFile Storage
Show answer & explanationAnswer & explanation
Correct answer: B. Block Storage
Block storage provides raw storage volumes that can be attached to virtual machines, similar to a physical hard drive. It offers low-latency access and is suitable for I/O-intensive workloads, making it ideal for databases and operating system volumes where high performance and direct attachment are critical.
Why the other options are wrong
- A. Archive storage is for long-term data retention, optimized for cost-effectiveness and infrequent access, not for active, I/O-intensive workloads.
- C. Object storage is highly scalable and cost-effective but accessed via APIs and not suitable for direct attachment to VMs or I/O-intensive workloads.
- D. File storage is accessed via network file protocols (like NFS/SMB) and often used for shared storage, not typically for directly attached, low-latency VM volumes.
Block Storage
A storage architecture that treats data as blocks, each with a unique address, allowing them to be stored independently and attached directly to compute instances.
- Provides raw storage volumes, like a virtual hard drive.
- Offers low-latency access, suitable for databases and OS volumes.
- Can be provisioned as Elastic Block Storage (EBS) or similar services.
Memory trick: Blocks for VMs, Files for Shares, Objects for Apps, Archive for Deep Freeze.