← CLF-C02·Amazon Web Services

Question 317 of 1,024

Cloud Technology and Services →mediumMultiple ChoiceObjective-mapped

Quick Answer

The correct answer is to store newly uploaded videos in S3 Standard, then use an S3 Lifecycle policy to transition them to S3 Glacier Deep Archive after 30 days. This strategy directly achieves S3 lifecycle policy cost optimization by matching storage costs to actual access patterns: S3 Standard provides the low-latency retrieval needed during the first 30 days of high demand, while the automated lifecycle rule moves data to Glacier Deep Archive—the cheapest storage class for long-term archival—once access drops, eliminating manual intervention and unnecessary spend. On the AWS Certified Cloud Practitioner CLF-C02 exam, this scenario tests your understanding of how lifecycle policies automate storage class transitions to balance performance and cost, a core cost optimization concept. A common trap is choosing S3 One Zone-IA or S3 Glacier Flexible Retrieval, which either lack durability for long-term archives or incur higher retrieval costs than needed. Memory tip: think “Hot first, then deep freeze”—Standard for active use, Deep Archive for the long haul.

CLF-C02 Cloud Technology and Services Practice Question

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.

A media company produces video content and stores all videos in Amazon S3. New videos are accessed frequently for the first 30 days after release. After that, access drops significantly, but the company must retain all videos for 5 years for archival purposes. The company wants to minimize storage costs without compromising retrieval speed for the frequently accessed period. Which S3 storage class strategy should the company implement?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

Clue: "first"
Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Clue: "minimum / minimize"
Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.

Question 1mediummultiple choice

Full question →

A
Store all videos in S3 Standard for the entire 5-year retention period.
Why wrong: S3 Standard is optimized for frequently accessed data, but storing all videos in this class for 5 years would incur high costs for data that is rarely accessed after the first 30 days. This does not minimize storage costs.
B
Store all videos in S3 Glacier Deep Archive immediately upon upload.
Why wrong: S3 Glacier Deep Archive provides the lowest storage cost, but retrieval times range from 12 to 48 hours. This would cause unacceptable delays for the frequent access required during the first 30 days after release.
C
Store newly uploaded videos in S3 Standard, then use an S3 Lifecycle policy to transition them to S3 Glacier Deep Archive after 30 days.
S3 Standard provides low-latency access for the first 30 days. An S3 Lifecycle policy automatically moves data to S3 Glacier Deep Archive after that period, minimizing long-term storage costs while meeting the archival retention requirement.
D
Store newly uploaded videos in S3 One Zone-IA, then transition to S3 Glacier Flexible Retrieval after 30 days.
Why wrong: S3 One Zone-IA is not suitable for archival because it stores data in a single Availability Zone and has lower durability. Additionally, S3 Glacier Flexible Retrieval is more expensive than S3 Glacier Deep Archive for long-term archival, so this option does not minimize cost as effectively.

Full breakdown with real-world context →

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

✓

Store newly uploaded videos in S3 Standard, then use an S3 Lifecycle policy to transition them to S3 Glacier Deep Archive after 30 days.

Option C is correct because it uses S3 Standard for the first 30 days to ensure low-latency retrieval for frequently accessed content, then an S3 Lifecycle policy automatically transitions objects to S3 Glacier Deep Archive, which offers the lowest storage cost for long-term archival data. This balances cost and performance by matching the storage class to the access pattern, and the lifecycle transition is seamless with no manual intervention required.

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.

✗
Store all videos in S3 Standard for the entire 5-year retention period.
Why it's wrong here
S3 Standard is optimized for frequently accessed data, but storing all videos in this class for 5 years would incur high costs for data that is rarely accessed after the first 30 days. This does not minimize storage costs.
✗
Store all videos in S3 Glacier Deep Archive immediately upon upload.
Why it's wrong here
S3 Glacier Deep Archive provides the lowest storage cost, but retrieval times range from 12 to 48 hours. This would cause unacceptable delays for the frequent access required during the first 30 days after release.
✓
Store newly uploaded videos in S3 Standard, then use an S3 Lifecycle policy to transition them to S3 Glacier Deep Archive after 30 days.
Why this is correct
S3 Standard provides low-latency access for the first 30 days. An S3 Lifecycle policy automatically moves data to S3 Glacier Deep Archive after that period, minimizing long-term storage costs while meeting the archival retention requirement.
Clue confirmation
The clue words "first", "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Store newly uploaded videos in S3 One Zone-IA, then transition to S3 Glacier Flexible Retrieval after 30 days.
Why it's wrong here
S3 One Zone-IA is not suitable for archival because it stores data in a single Availability Zone and has lower durability. Additionally, S3 Glacier Flexible Retrieval is more expensive than S3 Glacier Deep Archive for long-term archival, so this option does not minimize cost as effectively.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates may confuse S3 Glacier Flexible Retrieval with S3 Glacier Deep Archive, or assume that S3 One Zone-IA is suitable for archival data, but the question explicitly requires 5-year retention and minimal cost, making Deep Archive the correct archival tier.

Detailed technical explanation

How to think about this question

S3 Lifecycle policies evaluate objects based on age (e.g., 30 days after creation) and can transition them between storage classes automatically; the transition to Glacier Deep Archive incurs a per-GB transition fee but is negligible compared to the storage savings. Under the hood, S3 Glacier Deep Archive uses a separate, offline storage tier with erasure coding across multiple facilities, providing 99.999999999% durability, but retrieval requires a restore request that moves data back to a temporary S3 Standard copy. A real-world scenario: a media company might also use S3 Intelligent-Tiering for unpredictable access patterns, but here the pattern is known, so lifecycle rules are more cost-predictable.

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.

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.

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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: Store newly uploaded videos in S3 Standard, then use an S3 Lifecycle policy to transition them to S3 Glacier Deep Archive after 30 days. — Option C is correct because it uses S3 Standard for the first 30 days to ensure low-latency retrieval for frequently accessed content, then an S3 Lifecycle policy automatically transitions objects to S3 Glacier Deep Archive, which offers the lowest storage cost for long-term archival data. This balances cost and performance by matching the storage class to the access pattern, and the lifecycle transition is seamless with no manual intervention required.

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.

Are there clue words in this question I should notice?

Yes — watch for: "first", "minimum / minimize". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

About these practice questions

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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 ingests sensor data from IoT devices into an Amazon S3 bucket. The data is accessed frequently for the first 30 days, but after that, it is rarely queried. The company’s compliance policy requires all data to be retained for 7 years. The company wants to minimize storage costs by automatically moving data to more cost-effective storage classes as it ages, without any manual intervention. Which Amazon S3 feature should the company configure to meet these requirements?

medium

✓ A.S3 Lifecycle policy
B.S3 Object Lock
C.S3 Replication
D.S3 Transfer Acceleration

Why A: An S3 Lifecycle policy automates the transition of objects between storage classes based on age. By configuring a lifecycle rule to move objects to S3 Standard-IA or S3 One Zone-IA after 30 days, and then to S3 Glacier Deep Archive after a longer period, the company can meet the 7-year retention requirement while minimizing costs without manual intervention.

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Question Discussion

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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.