- A
S3 Standard-IA
Why wrong: Standard-IA is for infrequently accessed data but with millisecond retrieval, not archival.
- B
S3 One Zone-IA
Why wrong: One Zone-IA stores data in a single AZ for infrequent access, not long-term archival.
- C
S3 Glacier Deep Archive
Deep Archive is the lowest-cost storage, designed for rarely accessed archival data with retrieval times of 12–48 hours.
- D
S3 Intelligent-Tiering
Why wrong: Intelligent-Tiering automatically moves data between tiers based on access patterns, not optimized for multi-hour retrieval archival.
Question 11 of 1,024
S3 Glacier Deep Archive: Cheapest Storage for Rarely Accessed Data
This CLF-C02 practice question tests your understanding of cloud technology and services. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
Which AWS storage class is optimized for long-term archival where data is rarely accessed and retrieval time of several hours is acceptable?
Quick Answer
The answer is S3 Glacier Deep Archive. This storage class is the correct choice because it is specifically optimized for long-term archival of data that is accessed rarely, where a retrieval time of several hours is acceptable, typically between 12 and 48 hours. By accepting this extended retrieval latency, S3 Glacier Deep Archive offers the lowest cost S3 storage class for archival retrieval hours, making it ideal for compliance, regulatory, or digital preservation use cases where data must be kept for years but almost never accessed. On the AWS Certified Cloud Practitioner CLF-C02 exam, this question tests your understanding of the trade-off between cost and retrieval speed across the S3 storage classes. A common trap is confusing S3 Glacier Deep Archive with standard S3 Glacier, which offers faster retrieval (minutes to hours) but at a higher cost. To remember, think of the name: “Deep” means deeper in the archive, taking longer to dig out, but costing you the least.
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
✓
S3 Glacier Deep Archive
S3 Glacier Deep Archive is designed for long-term archival of data that is accessed rarely, with retrieval times ranging from 12 to 48 hours. This makes it the most cost-effective storage class for scenarios where retrieval latency of several hours is acceptable, such as compliance or regulatory archives.
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.
- ✗
S3 Standard-IA
Why it's wrong here
Standard-IA is for infrequently accessed data but with millisecond retrieval, not archival.
- ✗
S3 One Zone-IA
Why it's wrong here
One Zone-IA stores data in a single AZ for infrequent access, not long-term archival.
- ✓
S3 Glacier Deep Archive
Why this is correct
Deep Archive is the lowest-cost storage, designed for rarely accessed archival data with retrieval times of 12–48 hours.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
S3 Intelligent-Tiering
Why it's wrong here
Intelligent-Tiering automatically moves data between tiers based on access patterns, not optimized for multi-hour retrieval archival.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse S3 Glacier Deep Archive with S3 Glacier Flexible Retrieval, assuming both offer similar retrieval times, but the exam specifically tests the distinction that Deep Archive requires 12–48 hours while Flexible Retrieval can provide minutes to hours.
Detailed technical explanation
How to think about this question
S3 Glacier Deep Archive uses a bulk retrieval model where data is stored on low-cost, high-density tape-like infrastructure, with retrieval times of 12 hours (standard) to 48 hours (bulk). This contrasts with S3 Glacier Flexible Retrieval, which offers minutes to hours, and S3 Glacier Deep Archive's longer retrieval is a trade-off for the lowest storage cost at $0.00099 per GB/month. In real-world scenarios, this class is ideal for financial records or medical imaging that must be retained for 7–10 years but rarely accessed.
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 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.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
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.
- →
Cloud Technology and Services — study guide chapter
Learn the concepts, then practise the questions
- →
Cloud Technology and Services practice questions
Targeted practice on this topic area only
- →
All CLF-C02 questions
1,024 questions across all exam domains
- →
AWS Certified Cloud Practitioner CLF-C02 study guide
Full concept coverage aligned to exam objectives
- →
CLF-C02 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related CLF-C02 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Cloud Concepts practice questions
Practise CLF-C02 questions linked to Cloud Concepts.
Security and Compliance practice questions
Practise CLF-C02 questions linked to Security and Compliance.
Cloud Technology and Services practice questions
Practise CLF-C02 questions linked to Cloud Technology and Services.
Billing, Pricing, and Support practice questions
Practise CLF-C02 questions linked to Billing, Pricing, and Support.
AWS shared responsibility model practice questions
Practise CLF-C02 questions linked to AWS shared responsibility model.
AWS IAM practice questions
Practise CLF-C02 questions linked to AWS IAM.
AWS pricing practice questions
Practise CLF-C02 questions linked to AWS pricing.
AWS support plans practice questions
Practise CLF-C02 questions linked to AWS support plans.
AWS S3 practice questions
Practise CLF-C02 questions linked to AWS S3.
AWS EC2 practice questions
Practise CLF-C02 questions linked to AWS EC2.
Practice this exam
Start a free CLF-C02 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 CLF-C02 question test?
Cloud Technology and Services — This question tests Cloud Technology and Services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: S3 Glacier Deep Archive — S3 Glacier Deep Archive is designed for long-term archival of data that is accessed rarely, with retrieval times ranging from 12 to 48 hours. This makes it the most cost-effective storage class for scenarios where retrieval latency of several hours is acceptable, such as compliance or regulatory archives.
What should I do if I get this CLF-C02 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 →
Same concept, more angles
1 more ways this is tested on CLF-C02
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 archives compliance records that must be retained for 7 years but will almost never be accessed. They need the absolute lowest storage cost with retrieval times of several hours being acceptable. Which S3 storage class should they use?
medium- A.S3 Glacier Instant Retrieval
- B.S3 Standard-IA
- C.S3 Glacier Flexible Retrieval
- ✓ D.S3 Glacier Deep Archive
Why D: S3 Glacier Deep Archive is designed for long-term retention of data that is accessed rarely, with retrieval times of 12 hours or more, making it the lowest-cost S3 storage class. For compliance records that must be retained for 7 years and almost never accessed, with acceptable retrieval times of several hours, this class provides the absolute minimum storage cost while meeting the retrieval time requirement.
Keep practising
More CLF-C02 practice questions
- A company publishes a message each time a new product is added to its catalogue. Three services need to receive this mes…
- A media company stores frequently accessed video thumbnails in Amazon S3. The thumbnails are read multiple times every d…
- A company needs a service to translate domain names (like www.example.com) into IP addresses, check the health of their…
- A startup runs an application on AWS and receives a monthly bill that charges exactly for the number of compute hours us…
- A financial institution runs its core banking application on-premises due to regulatory requirements. It has connected i…
- A company wants to run a MySQL database in AWS without managing database software installation, applying patches, settin…
Last reviewed: Jun 11, 2026
This CLF-C02 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 CLF-C02 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.