SAA-C03 io2 is a Provisioned IOPS SSD volume type. Practice Question
This SAA-C03 practice question tests your understanding of design high-performing architectures. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: io2 is a Provisioned IOPS SSD volume type.. 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 media archive requires consistent high IOPS for a transactional database on EC2. Which EBS volume type is most suitable? The architecture review board prefers a managed AWS-native control.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Provisioned IOPS SSD such as io2
The io2 Provisioned IOPS SSD volume type is designed for latency-sensitive transactional workloads that require consistent, high IOPS. It provides a service-level agreement (SLA) of 99.999% durability and supports up to 256,000 IOPS per volume, making it ideal for a database on EC2 that demands predictable performance. As a managed AWS-native EBS volume, it aligns with the architecture review board's preference for a fully AWS-controlled storage solution.
Key principle: io2 is a Provisioned IOPS SSD volume type.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Provisioned IOPS SSD such as io2
Why this is correct
io2 is designed for business-critical workloads requiring consistent high IOPS and durability.
Related concept
io2 is a Provisioned IOPS SSD volume type.
✗
st1 Throughput Optimized HDD
Why it's wrong here
st1 is for throughput-oriented sequential workloads, not high-IOPS transactional databases.
✗
Instance store only
Why it's wrong here
Instance store can be fast but is ephemeral and not generally suitable for durable databases.
✗
sc1 Cold HDD
Why it's wrong here
sc1 is low-cost cold storage with lower performance.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse throughput-optimized HDD (st1) with IOPS requirements, mistakenly thinking high throughput equals high IOPS, but transactional databases need random I/O performance, not sequential throughput.
Detailed technical explanation
How to think about this question
Under the hood, io2 volumes use a multi-tenant, non-volatile memory express (NVMe) interface on Nitro-based instances to achieve sub-millisecond latencies and consistent IOPS. The io2 volume type also supports EBS Multi-Attach, allowing a single volume to be attached to multiple EC2 instances in the same Availability Zone for clustered database scenarios. In a real-world media archive, the transactional database might handle metadata lookups and indexing, where even a single IOPS spike could cause application latency, making io2's provisioned IOPS guarantee critical.
KKey Concepts to Remember
io2 is a Provisioned IOPS SSD volume type.
io2 is designed for business-critical applications requiring consistent high IOPS and low latency.
io2 volumes can provision up to 64,000 IOPS per volume (with Nitro instances).
io2 offers 99.999% durability and is suitable for transactional databases.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
io2 is a Provisioned IOPS SSD volume type.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
Review io2 is a Provisioned IOPS SSD volume type., then practise related SAA-C03 questions on the same topic to reinforce the concept.
Design High-Performing Architectures — This question tests Design High-Performing Architectures — io2 is a Provisioned IOPS SSD volume type..
What is the correct answer to this question?
The correct answer is: Provisioned IOPS SSD such as io2 — The io2 Provisioned IOPS SSD volume type is designed for latency-sensitive transactional workloads that require consistent, high IOPS. It provides a service-level agreement (SLA) of 99.999% durability and supports up to 256,000 IOPS per volume, making it ideal for a database on EC2 that demands predictable performance. As a managed AWS-native EBS volume, it aligns with the architecture review board's preference for a fully AWS-controlled storage solution.
What should I do if I get this SAA-C03 question wrong?
Review io2 is a Provisioned IOPS SSD volume type., then practise related SAA-C03 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
io2 is a Provisioned IOPS SSD volume type.
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Question Discussion
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