CompTIA Cloud Essentials+ (CLO-002)Cloud ConceptsHard
A cloud customer is migrating a legacy monolithic application to the cloud. The application's database requires extremely high input/output operations per second (IOPS) and very low latency, as it processes millions of transactions per second. Which cloud storage type is BEST suited for this specific database requirement?
- ACold Archive Storage
- BGeneral Purpose SSD Block Storage
- CHigh Performance IOPS SSD Block Storage
- DStandard Object Storage
Show answer & explanationAnswer & explanation
Correct answer: C. High Performance IOPS SSD Block Storage
For 'extremely high IOPS' and 'very low latency' for a transactional database processing millions of transactions, a specialized 'High Performance IOPS SSD Block Storage' is the most appropriate. General Purpose SSD Block Storage offers good performance but not the 'extremely high' levels needed, and object/archive storage are unsuitable for databases with these performance demands.
Why the other options are wrong
- A. Cold Archive Storage is for long-term, infrequently accessed data and is entirely unsuitable for a high-transaction database.
- B. General Purpose SSD Block Storage offers good performance for many applications but may not meet 'extremely high IOPS' and 'very low latency' for millions of transactions.
- D. Standard Object Storage is for unstructured data and is not suitable for high-performance databases due to higher latency and lower IOPS.
High Performance IOPS SSD Block Storage
A cloud storage type optimized for applications requiring the highest levels of IOPS and lowest latency, often provisioned with dedicated performance characteristics.
- Designed for critical, I/O-intensive databases.
- Guaranteed IOPS and throughput.
- More expensive than other block storage options.
Memory trick: SGH: Some Great Heroes use specialized High IOPS.