SAA-C03 Design High-Performing Architectures 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: provisioned IOPS SSD (io1/io2) volumes are designed for I/O-intensive workloads.. 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 document portal requires consistent high IOPS for a transactional database on EC2. Which EBS volume type is most suitable? The design must avoid adding custom operational scripts.
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
Provisioned IOPS SSD volumes (io2) are designed for latency-sensitive transactional workloads that require consistent, high IOPS. They deliver a predictable performance level with a 99.9% durability guarantee, making them ideal for a database on EC2 without needing custom scripts to manage performance.
Key principle: Provisioned IOPS SSD (io1/io2) volumes are designed for I/O-intensive workloads.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
sc1 Cold HDD
Why it's wrong here
sc1 is low-cost cold storage with lower performance.
✗
Instance store only
Why it's wrong here
Instance store can be fast but is ephemeral and not generally suitable for durable databases.
✓
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
Provisioned IOPS SSD (io1/io2) volumes are designed for I/O-intensive workloads.
✗
st1 Throughput Optimized HDD
Why it's wrong here
st1 is for throughput-oriented sequential workloads, not high-IOPS transactional databases.
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-optimized SSD, failing to recognize that transactional databases require low-latency random I/O, not high sequential throughput.
Detailed technical explanation
How to think about this question
io2 volumes use a dedicated Nitro controller (on supported instances) to deliver single-digit millisecond latencies and up to 256,000 IOPS per volume. The io2 Block Express architecture further extends these limits by using NVMe over PCIe, enabling up to 4,000 GiB per volume and 256,000 IOPS with sub-millisecond latency. In a real-world scenario, a high-traffic e-commerce database would benefit from io2's ability to maintain consistent IOPS even under bursty workloads, avoiding performance degradation that HDD-based volumes would suffer.
KKey Concepts to Remember
Provisioned IOPS SSD (io1/io2) volumes are designed for I/O-intensive workloads.
io2 volumes offer higher durability and IOPS/GiB than io1.
They allow explicit provisioning of a specific IOPS rate.
Ideal for transactional databases requiring consistent, predictable performance.
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
Provisioned IOPS SSD (io1/io2) volumes are designed for I/O-intensive workloads.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Provisioned IOPS SSD (io1/io2) volumes are designed for I/O-intensive workloads. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Review provisioned IOPS SSD (io1/io2) volumes are designed for I/O-intensive workloads., 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 — Provisioned IOPS SSD (io1/io2) volumes are designed for I/O-intensive workloads..
What is the correct answer to this question?
The correct answer is: Provisioned IOPS SSD such as io2 — Provisioned IOPS SSD volumes (io2) are designed for latency-sensitive transactional workloads that require consistent, high IOPS. They deliver a predictable performance level with a 99.9% durability guarantee, making them ideal for a database on EC2 without needing custom scripts to manage performance.
What should I do if I get this SAA-C03 question wrong?
Review provisioned IOPS SSD (io1/io2) volumes are designed for I/O-intensive workloads., then practise related SAA-C03 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Provisioned IOPS SSD (io1/io2) volumes are designed for I/O-intensive workloads.
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 →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
This SAA-C03 practice question is part of Courseiva's free Amazon Web Services 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 SAA-C03 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.