CompTIA Cloud Essentials+ (CLO-002)Cloud ConceptsMedium
A company is migrating its existing relational database to a cloud environment. The database requires low-latency access, consistent performance, and the ability to attach directly to virtual machines. Which cloud storage type is BEST suited for this requirement?
- AObject Storage
- BBlock Storage
- CArchive Storage
- DFile Storage
Show answer & explanationAnswer & explanation
Correct answer: B. Block Storage
Block storage provides low-latency, consistent performance, and can be directly attached to virtual machines (similar to a physical hard drive), making it ideal for relational databases.
Why the other options are wrong
- A. Object storage is highly scalable but has higher latency and is typically accessed via APIs, not directly attached to VMs like a disk.
- C. Archive storage is for long-term, infrequently accessed data, optimized for cost over performance and not suitable for active databases.
- D. File storage is good for shared access but often has higher latency than block storage and may not provide the consistent performance needed for a database.
Block Storage
A type of data storage that stores data in fixed-size blocks, each with a unique address, allowing for highly efficient and low-latency access.
- Often used for databases and high-performance applications.
- Can be attached directly to virtual machines as a raw disk.
- Provides consistent performance and low latency.
Memory trick: Blocks are like hard drives for databases.