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Data Store Management →mediumMultiple SelectObjective-mapped

DEA-C01 Data Store Management Practice Question

This DEA-C01 practice question tests your understanding of data store management. 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.

Which THREE of the following are best practices for managing data storage costs in Amazon S3? (Choose 3.)

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.

Question 1mediummulti select

Full question →

A
Store all data in S3 Standard for maximum durability.
Why wrong: S3 Standard is more expensive; use appropriate tiers.
B
Use S3 Lifecycle policies to transition objects to S3 Glacier Deep Archive after a specified period.
Lifecycle policies reduce costs by moving data to cheaper storage.
C
Use S3 Object Lock to prevent object deletion and then apply a lifecycle policy to expire objects after a retention period.
Object Lock prevents deletion, and lifecycle expiration can clean up after retention.
D
Create multiple bucket replicas in different regions to ensure availability.
Why wrong: Cross-region replication increases costs.
E
Enable S3 Intelligent-Tiering for data with unknown or changing access patterns.
Intelligent-Tiering automatically moves data between tiers based on access.

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

✓

Use S3 Lifecycle policies to transition objects to S3 Glacier Deep Archive after a specified period.

Option A is correct because lifecycle policies transition data to lower-cost storage classes. Option C is correct because S3 Intelligent-Tiering automatically optimizes costs for unknown access patterns. Option E is correct because S3 Object Lock prevents accidental deletion but can be used with lifecycle policies to archive. Option B is wrong because S3 Standard costs more for infrequent access. Option D is wrong because it increases costs.

Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.

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 data in S3 Standard for maximum durability.
Why it's wrong here
S3 Standard is more expensive; use appropriate tiers.
✓
Use S3 Lifecycle policies to transition objects to S3 Glacier Deep Archive after a specified period.
Why this is correct
Lifecycle policies reduce costs by moving data to cheaper storage.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
✓
Use S3 Object Lock to prevent object deletion and then apply a lifecycle policy to expire objects after a retention period.
Why this is correct
Object Lock prevents deletion, and lifecycle expiration can clean up after retention.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
✗
Create multiple bucket replicas in different regions to ensure availability.
Why it's wrong here
Cross-region replication increases costs.
✓
Enable S3 Intelligent-Tiering for data with unknown or changing access patterns.
Why this is correct
Intelligent-Tiering automatically moves data between tiers based on access.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.

Common exam traps

Common exam trap: NAT rules depend on direction and matching traffic

NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.

Detailed technical explanation

How to think about this question

NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.

KKey Concepts to Remember

Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.

TExam Day Tips

Identify inside and outside interfaces first.
Check whether the scenario needs static NAT, dynamic NAT or PAT.
Do not confuse NAT matching ACLs with normal packet-filtering intent.

Key takeaway

NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.

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 the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related DEA-C01 NAT questions on configuration and troubleshooting.

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FAQ

Questions learners often ask

What does this DEA-C01 question test?

Data Store Management — This question tests Data Store Management — Static NAT maps one inside address to one outside address..

What is the correct answer to this question?

The correct answer is: Use S3 Lifecycle policies to transition objects to S3 Glacier Deep Archive after a specified period. — Option A is correct because lifecycle policies transition data to lower-cost storage classes. Option C is correct because S3 Intelligent-Tiering automatically optimizes costs for unknown access patterns. Option E is correct because S3 Object Lock prevents accidental deletion but can be used with lifecycle policies to archive. Option B is wrong because S3 Standard costs more for infrequent access. Option D is wrong because it increases costs.

What should I do if I get this DEA-C01 question wrong?

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?

Static NAT maps one inside address to one outside address.

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This DEA-C01 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 DEA-C01 exam.