Question 128 of 1,616
Troubleshooting and OptimizationeasyMultiple ChoiceObjective-mapped

DVA-C02 S3 Bucket Policy Practice Question

This DVA-C02 practice question tests your understanding of troubleshooting and optimization. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. A key principle to apply: s3 Bucket Policy. 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 developer notices that an S3 bucket configured for static website hosting returns 403 Forbidden errors when accessed from a browser. The bucket policy allows s3:GetObject for principal "*" but only over HTTPS. What is the MOST likely reason for the error?

Clue words in this question

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

  • Clue: "most likely"

    Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.

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 request was sent over HTTP instead of HTTPS.

Option C is correct because the bucket policy includes a condition that requires HTTPS. If the browser sends an HTTP request, the condition fails and the request is denied with a 403 error. Option A is incorrect because the policy allows anonymous access (principal "*") and does not require IAM authentication. Option B is incorrect because the policy explicitly allows s3:GetObject for anonymous principals over HTTPS. Option D is incorrect because the S3 website endpoint does support HTTPS; the issue is the condition in the policy, not the endpoint's protocol support.

Key principle: S3 Bucket Policy

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 requester is not authenticated with AWS IAM.

    Why it's wrong here

    Incorrect. The bucket policy allows anonymous access (principal "*") and does not require IAM authentication.

  • The bucket policy denies s3:GetObject for anonymous principals.

    Why it's wrong here

    Incorrect. The bucket policy explicitly allows s3:GetObject for anonymous principals, but with an HTTPS condition.

  • The request was sent over HTTP instead of HTTPS.

    Why this is correct

    Correct. The request was sent over HTTP, which fails the aws:SecureTransport condition, resulting in a 403 error.

    Clue confirmation

    The clue word "most likely" in the question point toward this answer.

    Related concept

    S3 Bucket Policy

  • The S3 bucket website endpoint does not support HTTPS.

    Why it's wrong here

    Incorrect. The S3 website endpoint does support HTTPS. The error is due to the policy condition, not the endpoint's protocol support.

Common exam traps

Common exam trap: answer the scenario, not the keyword

A common trap is to assume that a 403 Forbidden from an S3 static website always means the bucket policy denies access. However, when a condition key like aws:SecureTransport is used, the error can occur simply because the request used HTTP instead of HTTPS, even though the policy grants access.

Detailed technical explanation

How to think about this question

Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.

KKey Concepts to Remember

  • S3 Bucket Policy
  • Condition Key aws:SecureTransport
  • S3 Static Website Hosting

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

S3 Bucket Policy

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 ClassMin DurationRetrievalUse Case
S3 StandardNoneImmediateFrequently accessed data
S3 Standard-IA30 daysImmediateInfrequent access, rapid retrieval
S3 One Zone-IA30 daysImmediateNon-critical infrequent data
S3 Intelligent-TieringNoneImmediate–hoursUnknown or changing access patterns
S3 Glacier Instant90 daysMillisecondsArchive with instant retrieval
S3 Glacier Flexible90 daysMinutes–hoursArchive, flexible retrieval
S3 Glacier Deep Archive180 daysHoursLong-term compliance archive

What to study next

Got this wrong? Here's your next step.

Review s3 Bucket Policy, then practise related DVA-C02 questions on the same topic to reinforce the concept.

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FAQ

Questions learners often ask

What does this DVA-C02 question test?

Troubleshooting and Optimization — This question tests Troubleshooting and Optimization — S3 Bucket Policy.

What is the correct answer to this question?

The correct answer is: The request was sent over HTTP instead of HTTPS. — Option C is correct because the bucket policy includes a condition that requires HTTPS. If the browser sends an HTTP request, the condition fails and the request is denied with a 403 error. Option A is incorrect because the policy allows anonymous access (principal "*") and does not require IAM authentication. Option B is incorrect because the policy explicitly allows s3:GetObject for anonymous principals over HTTPS. Option D is incorrect because the S3 website endpoint does support HTTPS; the issue is the condition in the policy, not the endpoint's protocol support.

What should I do if I get this DVA-C02 question wrong?

Review s3 Bucket Policy, then practise related DVA-C02 questions on the same topic to reinforce the concept.

Are there clue words in this question I should notice?

Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.

What is the key concept behind this question?

S3 Bucket Policy

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Last reviewed: Jun 20, 2026

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This DVA-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 DVA-C02 exam.