Quick Answer
The answer is block storage, as it is the correct choice for database workloads in the cloud that require both block-level access and high durability. Block storage provides raw, low-latency volumes that database servers need for high-performance read/write operations, directly supporting transactional workloads without the overhead of file system abstraction. For the CompTIA Cloud+ CV0-004 exam, this question tests your understanding of storage types and their specific use cases—a common trap is confusing block storage with object storage, which lacks the low-latency block-level access required for databases. Remember that block storage supports RAID, snapshots, and replication to achieve the durability demanded by production databases, while file storage introduces latency and object storage is better for unstructured data. A helpful memory tip: think of block storage as the “building blocks” for databases—each block is independently addressable, just like a database needs direct, fast access to specific data chunks.
This CV0-004 practice question tests your understanding of cloud architecture and design. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A cloud administrator needs to design a storage solution that provides block-level access for a database server and must be highly durable. Which storage type should be used?
File storage
Why wrong: File storage uses network file shares, not direct block access.
Block storage
Block storage provides raw volumes that databases can use and is durable.
Archive storage
Why wrong: Archive storage is for infrequently accessed data, not low-latency database needs.
Object storage
Why wrong: Object storage provides REST API access, not block-level.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Block storage
Block storage is the correct choice because it provides raw, low-latency block-level access that database servers require for high-performance read/write operations. It also supports features like RAID, snapshots, and replication to achieve high durability, making it ideal for transactional databases.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
File storage
Why it's wrong here
File storage uses network file shares, not direct block access.
Block storage
Why this is correct
Block storage provides raw volumes that databases can use and is durable.
Related concept
Read the scenario before looking for a memorised answer.
Archive storage
Why it's wrong here
Archive storage is for infrequently accessed data, not low-latency database needs.
Object storage
Why it's wrong here
Object storage provides REST API access, not block-level.
Common exam traps
CompTIA often tests the misconception that object storage can serve as a high-performance block store, but candidates must remember that object storage lacks the low-latency, block-level access and filesystem semantics required for transactional databases.
Detailed technical explanation
Block storage exposes raw volumes as logical unit numbers (LUNs) via protocols like iSCSI or Fibre Channel, allowing the operating system to format them with a filesystem (e.g., ext4, NTFS) or use them directly for database data files. Under the hood, durability is achieved through techniques like synchronous replication across availability zones or erasure coding, ensuring data integrity even during hardware failures. In real-world scenarios, a database like MySQL or PostgreSQL running on block storage can leverage features like snapshots for point-in-time recovery without impacting performance.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the CV0-004 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
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FAQ
Cloud Architecture and Design — This question tests Cloud Architecture and Design — Read the scenario before looking for a memorised answer..
The correct answer is: Block storage — Block storage is the correct choice because it provides raw, low-latency block-level access that database servers require for high-performance read/write operations. It also supports features like RAID, snapshots, and replication to achieve high durability, making it ideal for transactional databases.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company is migrating a legacy application to the cloud. The application requires low-latency access to a shared filesystem that must be accessible from multiple virtual machines simultaneously. Which storage solution should the cloud architect recommend?
easyWhy C: Block storage (C) is correct because it provides a shared filesystem that can be mounted by multiple virtual machines simultaneously with low-latency access. Services like Amazon EBS with multi-attach or Azure Managed Disks support concurrent read/write operations from multiple instances, meeting the legacy application's requirement for a shared, low-latency filesystem.
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Last reviewed: Jun 30, 2026
This CV0-004 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CV0-004 exam.
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