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Data Store Management →mediumMultiple ChoiceObjective-mapped

DEA-C01 Data Store Management Practice Question

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

Exhibit

Refer to the exhibit.

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Deny",
      "Principal": "*",
      "Action": "s3:*",
      "Resource": "arn:aws:s3:::example-bucket/*",
      "Condition": {
        "Bool": {
          "aws:SecureTransport": "false"
        }
      }
    },
    {
      "Effect": "Allow",
      "Principal": "*",
      "Action": [
        "s3:GetObject",
        "s3:PutObject"
      ],
      "Resource": "arn:aws:s3:::example-bucket/*",
      "Condition": {
        "StringEquals": {
          "s3:x-amz-server-side-encryption": "AES256"
        }
      }
    }
  ]
}

A data engineer applies the bucket policy shown in the exhibit to an S3 bucket. The bucket contains sensitive data that must be encrypted at rest and accessed only over HTTPS. Which of the following statements is true?

Exhibit

Refer to the exhibit.

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Deny",
      "Principal": "*",
      "Action": "s3:*",
      "Resource": "arn:aws:s3:::example-bucket/*",
      "Condition": {
        "Bool": {
          "aws:SecureTransport": "false"
        }
      }
    },
    {
      "Effect": "Allow",
      "Principal": "*",
      "Action": [
        "s3:GetObject",
        "s3:PutObject"
      ],
      "Resource": "arn:aws:s3:::example-bucket/*",
      "Condition": {
        "StringEquals": {
          "s3:x-amz-server-side-encryption": "AES256"
        }
      }
    }
  ]
}

A
The policy allows both HTTP and HTTPS access.
Why wrong: The Deny statement blocks requests that do not use SecureTransport, so only HTTPS is allowed.
B
The policy allows anonymous access to list objects in the bucket.
Why wrong: The Allow statement only grants GetObject and PutObject, not ListBucket, so anonymous listing is not allowed.
C
The policy enforces that all PutObject requests must include the x-amz-server-side-encryption header with value AES256.
The Allow statement requires the condition s3:x-amz-server-side-encryption equals AES256 for PutObject.
D
The policy requires the use of AWS KMS for server-side encryption.
Why wrong: The policy specifies AES256, which is SSE-S3, not KMS.

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

✓

The policy enforces that all PutObject requests must include the x-amz-server-side-encryption header with value AES256.

Option C is correct because the bucket policy includes a condition that denies PutObject requests unless the `s3:x-amz-server-side-encryption` header is present and set to `AES256`. This enforces server-side encryption with S3-managed keys (SSE-S3) for all uploads, ensuring data at rest is encrypted.

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.

✗
The policy allows both HTTP and HTTPS access.
Why it's wrong here
The Deny statement blocks requests that do not use SecureTransport, so only HTTPS is allowed.
✗
The policy allows anonymous access to list objects in the bucket.
Why it's wrong here
The Allow statement only grants GetObject and PutObject, not ListBucket, so anonymous listing is not allowed.
✓
The policy enforces that all PutObject requests must include the x-amz-server-side-encryption header with value AES256.
Why this is correct
The Allow statement requires the condition s3:x-amz-server-side-encryption equals AES256 for PutObject.
Related concept
Read the scenario before looking for a memorised answer.
✗
The policy requires the use of AWS KMS for server-side encryption.
Why it's wrong here
The policy specifies AES256, which is SSE-S3, not KMS.

Common exam traps

Common exam trap: answer the scenario, not the keyword

AWS often tests the distinction between SSE-S3 (`AES256`) and SSE-KMS (`aws:kms`) in bucket policy conditions, and candidates may mistakenly think the policy requires KMS when it actually specifies AES256.

Detailed technical explanation

How to think about this question

The `aws:SecureTransport` condition key evaluates the TLS/SSL status of the request; when set to `false`, it denies the request, effectively blocking HTTP. The `s3:x-amz-server-side-encryption` condition key checks the request header; requiring `AES256` enforces SSE-S3, which uses S3-managed keys and is free, unlike KMS which incurs per-request costs. A common nuance is that the `Deny` effect in an S3 bucket policy overrides any `Allow` from other policies (like bucket ACLs or IAM), making these conditions mandatory.

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.

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.

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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 — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: The policy enforces that all PutObject requests must include the x-amz-server-side-encryption header with value AES256. — Option C is correct because the bucket policy includes a condition that denies PutObject requests unless the `s3:x-amz-server-side-encryption` header is present and set to `AES256`. This enforces server-side encryption with S3-managed keys (SSE-S3) for all uploads, ensuring data at rest is encrypted.

What should I do if I get this DEA-C01 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.

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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.

DEA-C01 Data Store Management Practice Question

Exhibit

Exhibit

Why each option matters

Option-by-option breakdown

Common exam trap: answer the scenario, not the keyword

How to think about this question

KKey Concepts to Remember

TExam Day Tips

How this comes up in practice

AWS S3 Storage Class Comparison

Got this wrong? Here's your next step.

Related DEA-C01 practice-question pages

Data Ingestion and Transformation practice questions

Data Operations and Support practice questions

Data Security and Governance practice questions

Data Store Management practice questions

DEA-C01 fundamentals practice questions

DEA-C01 scenario practice questions

DEA-C01 troubleshooting practice questions

Start a free DEA-C01 practice session

Questions learners often ask

What does this DEA-C01 question test?

What is the correct answer to this question?

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

What is the key concept behind this question?

More DEA-C01 practice questions

Question Discussion