The answer is instance store NVMe, as it is the best storage for temporary processing workspaces where data does not need to persist. Instance store volumes provide ephemeral, block-level storage directly attached to the EC2 host, offering extremely low latency and high throughput ideal for scratch data, buffers, or caches. Because the workload explicitly requires a temporary workspace that can be discarded when the instance stops or terminates, instance store avoids the cost and overhead of durable storage like EBS while delivering maximum performance. On the SAA-C03 exam, this scenario tests your ability to distinguish between ephemeral and persistent storage—a common trap is choosing EBS for speed, but remember that instance store is faster for temporary needs and is lost on stop or termination. A helpful memory tip: if the data can disappear when the instance does, think “instance store for instant speed, no strings attached.”
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: instance store provides temporary block storage physically attached to the host instance.. 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.
Exhibit
fio benchmark on the selected EC2 family:
- Device: /dev/nvme1n1
- 4 KiB random read IOPS: 710,000
- Average latency: 0.18 ms
- Sequential throughput: 2.8 GiB/s
Workload notes:
- Workers download source video files from S3
- They generate temporary frame extracts and intermediate artifacts locally
- Final MP4 outputs are uploaded to S3 immediately after processing
- If an instance terminates, the job is retried from the original source file
Based on the exhibit, which storage choice best matches the workload requirements?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
fio benchmark on the selected EC2 family:
- Device: /dev/nvme1n1
- 4 KiB random read IOPS: 710,000
- Average latency: 0.18 ms
- Sequential throughput: 2.8 GiB/s
Workload notes:
- Workers download source video files from S3
- They generate temporary frame extracts and intermediate artifacts locally
- Final MP4 outputs are uploaded to S3 immediately after processing
- If an instance terminates, the job is retried from the original source file
A
Use io2 EBS volumes because they provide the highest durable block storage performance.
Why wrong: io2 can be very fast, but the workload does not require durable local scratch data, so paying for persistence adds unnecessary cost and complexity.
B
Use instance store NVMe for the temporary processing workspace.
Instance store fits a high-IOPS scratch workload where data can be lost safely and rebuilt from S3. The benchmark shows extremely low latency and very high random I/O performance, which is ideal for intermediate transcode files. Because the job can be retried from the source object, persistence is not needed on the local workspace.
C
Use Amazon EFS for the workspace so the temporary files survive instance replacement.
Why wrong: EFS is shared and persistent, but a network file system adds latency and is unnecessary when the workspace is disposable.
D
Use S3 as the working directory and read and write the intermediate files directly there.
Why wrong: S3 is object storage, not a low-latency filesystem for frequent read-modify-write scratch operations and temporary intermediates.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use instance store NVMe for the temporary processing workspace.
Instance store NVMe volumes provide temporary, ephemeral block storage directly attached to the EC2 instance, offering extremely low latency and high throughput for temporary processing workspaces. Since the workload requires a temporary workspace where data does not need to persist beyond the instance lifecycle, instance store is the optimal choice because it avoids the cost and overhead of durable storage while delivering the highest performance for scratch data.
Key principle: Instance store provides temporary block storage physically attached to the host instance.
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 io2 EBS volumes because they provide the highest durable block storage performance.
Why it's wrong here
io2 can be very fast, but the workload does not require durable local scratch data, so paying for persistence adds unnecessary cost and complexity.
✓
Use instance store NVMe for the temporary processing workspace.
Why this is correct
Instance store fits a high-IOPS scratch workload where data can be lost safely and rebuilt from S3. The benchmark shows extremely low latency and very high random I/O performance, which is ideal for intermediate transcode files. Because the job can be retried from the source object, persistence is not needed on the local workspace.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Instance store provides temporary block storage physically attached to the host instance.
✗
Use Amazon EFS for the workspace so the temporary files survive instance replacement.
Why it's wrong here
EFS is shared and persistent, but a network file system adds latency and is unnecessary when the workspace is disposable.
✗
Use S3 as the working directory and read and write the intermediate files directly there.
Why it's wrong here
S3 is object storage, not a low-latency filesystem for frequent read-modify-write scratch operations and temporary intermediates.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often choose durable storage options like EBS or EFS because they are familiar and seem 'safer,' failing to recognize that the workload explicitly requires a temporary workspace where data does not need to persist, making instance store the most performant and cost-effective choice.
Detailed technical explanation
How to think about this question
Instance store volumes are physically attached to the host server and provide block-level storage that is lost when the instance is stopped or terminated, making them ideal for scratch data, caches, and temporary processing. Under the hood, instance store NVMe volumes leverage direct NVMe access to local SSDs, bypassing the network stack entirely, which can deliver millions of IOPS with sub-millisecond latency—far exceeding EBS or EFS performance for temporary workloads. A real-world scenario is a video transcoding pipeline where intermediate frames are written to instance store for speed, then the final output is saved to durable S3 storage.
KKey Concepts to Remember
Instance store provides temporary block storage physically attached to the host instance.
Data on instance store is lost when the instance is stopped, terminated, or fails.
Instance store offers extremely low latency and very high IOPS, ideal for scratch space.
NVMe instance store volumes provide the highest performance among instance store types.
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
Instance store provides temporary block storage physically attached to the host instance.
Real-world example
How this comes up in practice
A startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
What to study next
Got this wrong? Here's your next step.
Review instance store provides temporary block storage physically attached to the host instance., 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 — Instance store provides temporary block storage physically attached to the host instance..
What is the correct answer to this question?
The correct answer is: Use instance store NVMe for the temporary processing workspace. — Instance store NVMe volumes provide temporary, ephemeral block storage directly attached to the EC2 instance, offering extremely low latency and high throughput for temporary processing workspaces. Since the workload requires a temporary workspace where data does not need to persist beyond the instance lifecycle, instance store is the optimal choice because it avoids the cost and overhead of durable storage while delivering the highest performance for scratch data.
What should I do if I get this SAA-C03 question wrong?
Review instance store provides temporary block storage physically attached to the host instance., then practise related SAA-C03 questions on the same topic to reinforce the concept.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Instance store provides temporary block storage physically attached to the host instance.
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 →
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. Based on the exhibit, which storage choice best matches the workload requirements?
hard
A.Use io2 EBS volumes because they provide the highest durable block storage performance.
✓ B.Use instance store NVMe for the temporary processing workspace.
C.Use Amazon EFS for the workspace so the temporary files survive instance replacement.
D.Use S3 as the working directory and read and write the intermediate files directly there.
Why B: Instance store NVMe volumes provide temporary, high-performance block storage directly attached to the EC2 host. For a temporary processing workspace where data does not need to persist beyond the instance lifecycle, instance store offers the lowest latency and highest throughput, making it the best match for the workload requirements.
Last reviewed: Jun 11, 2026
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.
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.