CV0-004 Cloud Architecture and Design Practice Question
A cloud architect is designing a solution for a financial analytics application that requires consistent, low-latency block storage for a database. The database will be deployed on a virtual machine in a public cloud. Which TWO storage types are appropriate for this requirement? (Select TWO.)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Block storage (EBS / Azure Disk)
Block storage (e.g., Amazon EBS, Azure Disk) is designed for low-latency, consistent performance for databases running on VMs. Instance store provides temporary block-level storage physically attached to the host, offering very low latency but is ephemeral. Object storage is not suitable for databases due to latency.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Block storage (EBS / Azure Disk)
Why this is correct
Block storage provides low-latency, persistent storage for VMs.
- ✗
File storage (EFS / Azure Files)
Why it's wrong here
File storage is shared and has higher latency, not ideal for databases.
- ✗
Archive storage
Why it's wrong here
Archive storage is for cold data, not for active databases.
- ✓
Instance store
Why this is correct
Instance store provides very low latency but is ephemeral; could be used if data can be replicated.
- ✗
Object storage
Why it's wrong here
Object storage has higher latency and is not designed for database workloads.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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