- A
Use an Amazon EBS io2 volume with provisioned IOPS for the metadata store.
Correct because io2 is designed for high, sustained IOPS with low latency. Provisioned IOPS is the right control when random disk activity, not capacity, is the bottleneck.
- B
Run the workload on a Nitro-based, EBS-optimized instance that has enough EBS bandwidth.
Correct because even a fast volume can be limited by the instance’s EBS throughput. A sufficiently sized Nitro instance prevents the compute host from becoming the performance ceiling.
- C
Place the EC2 instance and the EBS volume in the same Availability Zone.
Correct because EBS volumes are AZ-scoped. The instance and its volume must be in the same AZ, and keeping them aligned avoids architectural mistakes and unnecessary migrations.
- D
Move the working set to Amazon EFS because it automatically stripes across Availability Zones.
Why wrong: Incorrect because EFS is a shared file system, not a low-latency block volume. It can be great for shared access, but it is not the best fit for sustained random block I/O on one instance.
- E
Store the metadata in Amazon S3 because object storage is cheaper and supports random writes.
Why wrong: Incorrect because S3 is object storage, not a low-latency random-write block store. It is unsuitable for metadata that is updated frequently and accessed with disk-like semantics.
Quick Answer
The answer is to place the EC2 instance and the EBS volume in the same Availability Zone, and to use an io2 Block Express volume with provisioned IOPS. This configuration directly addresses the need to improve EBS performance for random I/O workload with persistence because io2 volumes deliver 99.999% durability and consistent sub-millisecond latency, eliminating the queue depth spikes that occur when sustained random reads and writes hit peak throughput. On the SAA-C03 exam, this scenario tests your understanding that EBS volumes are Availability Zone-bound and that provisioned IOPS volumes are mandatory for I/O-intensive, persistent workloads—a common trap is choosing gp3, which can burst but cannot guarantee consistent performance under sustained random I/O. Remember the memory tip: “io2 for I/O, same AZ for always.”
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. 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 rendering service runs on a single EC2 instance and writes a large working set of metadata to disk using sustained random reads and writes. The data must persist across stops and restarts, and the team sees queue depth spikes when the job reaches peak throughput. Which changes should the team make? Select three.
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
Use an Amazon EBS io2 volume with provisioned IOPS for the metadata store.
Option A is correct because an Amazon EBS io2 volume with provisioned IOPS is designed for I/O-intensive workloads with sustained random reads and writes, such as the rendering service's metadata store. The io2 volume type offers high durability (99.999%) and consistent low-latency performance, which directly addresses the queue depth spikes caused by peak throughput demands. Provisioned IOPS ensures the volume can handle the required random I/O without throttling, meeting the persistence requirement across stops and restarts.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Use an Amazon EBS io2 volume with provisioned IOPS for the metadata store.
Why this is correct
Correct because io2 is designed for high, sustained IOPS with low latency. Provisioned IOPS is the right control when random disk activity, not capacity, is the bottleneck.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Run the workload on a Nitro-based, EBS-optimized instance that has enough EBS bandwidth.
Why this is correct
Correct because even a fast volume can be limited by the instance’s EBS throughput. A sufficiently sized Nitro instance prevents the compute host from becoming the performance ceiling.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Place the EC2 instance and the EBS volume in the same Availability Zone.
Why this is correct
Correct because EBS volumes are AZ-scoped. The instance and its volume must be in the same AZ, and keeping them aligned avoids architectural mistakes and unnecessary migrations.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Move the working set to Amazon EFS because it automatically stripes across Availability Zones.
Why it's wrong here
Incorrect because EFS is a shared file system, not a low-latency block volume. It can be great for shared access, but it is not the best fit for sustained random block I/O on one instance.
- ✗
Store the metadata in Amazon S3 because object storage is cheaper and supports random writes.
Why it's wrong here
Incorrect because S3 is object storage, not a low-latency random-write block store. It is unsuitable for metadata that is updated frequently and accessed with disk-like semantics.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse Amazon EFS or S3 as suitable for random I/O workloads, but the exam tests understanding that EBS io2 is the only AWS block storage option designed for sustained random reads/writes with consistent low latency, while EFS and S3 are network-based and optimized for different access patterns.
Detailed technical explanation
How to think about this question
EBS io2 volumes use a Non-Volatile Memory Express (NVMe) interface on Nitro-based instances, providing direct attachment with up to 256,000 IOPS per volume and sub-millisecond latency. The queue depth spike issue is mitigated by ensuring the EBS volume and EC2 instance are in the same Availability Zone (Option C) to avoid cross-AZ data transfer latency, and by using an EBS-optimized instance (Option B) that dedicates network bandwidth to EBS traffic, preventing contention with other network I/O. In practice, rendering workloads often benefit from EBS Multi-Attach for shared volumes, but the question's single-instance setup makes io2 with provisioned IOPS the optimal choice.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
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
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
- →
Design High-Performing Architectures — study guide chapter
Learn the concepts, then practise the questions
- →
Design High-Performing Architectures practice questions
Targeted practice on this topic area only
- →
All SAA-C03 questions
1,040 questions across all exam domains
- →
SAA-C03 study guide
Full concept coverage aligned to exam objectives
- →
SAA-C03 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related SAA-C03 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Design Secure Architectures practice questions
Practise SAA-C03 questions linked to Design Secure Architectures.
Design Resilient Architectures practice questions
Practise SAA-C03 questions linked to Design Resilient Architectures.
Design High-Performing Architectures practice questions
Practise SAA-C03 questions linked to Design High-Performing Architectures.
Design Cost-Optimized Architectures practice questions
Practise SAA-C03 questions linked to Design Cost-Optimized Architectures.
SAA-C03 VPC practice questions
Practise SAA-C03 questions linked to SAA-C03 VPC.
SAA-C03 S3 lifecycle policy questions
Practise SAA-C03 questions linked to SAA-C03 S3 lifecycle policy questions.
SAA-C03 RDS Multi-AZ questions
Practise SAA-C03 questions linked to SAA-C03 RDS Multi-AZ questions.
SAA-C03 IAM policy practice questions
Practise SAA-C03 questions linked to SAA-C03 IAM policy.
SAA-C03 Route 53 failover questions
Practise SAA-C03 questions linked to SAA-C03 Route 53 failover questions.
SAA-C03 CloudFront practice questions
Practise SAA-C03 questions linked to SAA-C03 CloudFront.
SAA-C03 NAT gateway questions
Practise SAA-C03 questions linked to SAA-C03 NAT gateway questions.
SAA-C03 VPC endpoint questions
Practise SAA-C03 questions linked to SAA-C03 VPC endpoint questions.
Practice this exam
Start a free SAA-C03 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this SAA-C03 question test?
Design High-Performing Architectures — This question tests Design High-Performing Architectures — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use an Amazon EBS io2 volume with provisioned IOPS for the metadata store. — Option A is correct because an Amazon EBS io2 volume with provisioned IOPS is designed for I/O-intensive workloads with sustained random reads and writes, such as the rendering service's metadata store. The io2 volume type offers high durability (99.999%) and consistent low-latency performance, which directly addresses the queue depth spikes caused by peak throughput demands. Provisioned IOPS ensures the volume can handle the required random I/O without throttling, meeting the persistence requirement across stops and restarts.
What should I do if I get this SAA-C03 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
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 →
Last reviewed: Jun 11, 2026
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.