Question 453 of 1,616
SecurityhardMultiple ChoiceObjective-mapped

S3 Bucket Policy: Enforce HTTPS Access

This DVA-C02 practice question tests your understanding of security. 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": [
    {
      "Sid": "DenyNonHttps",
      "Effect": "Deny",
      "Principal": "*",
      "Action": "s3:*",
      "Resource": [
        "arn:aws:s3:::my-bucket",
        "arn:aws:s3:::my-bucket/*"
      ],
      "Condition": {
        "Bool": {
          "aws:SecureTransport": "false"
        }
      }
    }
  ]
}

A developer applied the above bucket policy to an S3 bucket. What is the outcome?

Exhibit

Refer to the exhibit.

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Sid": "DenyNonHttps",
      "Effect": "Deny",
      "Principal": "*",
      "Action": "s3:*",
      "Resource": [
        "arn:aws:s3:::my-bucket",
        "arn:aws:s3:::my-bucket/*"
      ],
      "Condition": {
        "Bool": {
          "aws:SecureTransport": "false"
        }
      }
    }
  ]
}

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

All requests to the bucket must use HTTPS; otherwise, they are denied.

The bucket policy includes a `Deny` effect with a `StringNotEquals` condition on `aws:SecureTransport`, which denies any request that does not use HTTPS. Since the `Principal` is set to `*`, this applies to all users, including anonymous users. Therefore, any request made over HTTP is denied, effectively requiring HTTPS for all access.

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.

  • Anonymous users are allowed to read objects.

    Why it's wrong here

    The policy does not grant any allow, only denies non-HTTPS.

  • Only write requests are denied if not using HTTPS.

    Why it's wrong here

    The action is s3:* (all actions).

  • All requests to the bucket must use HTTPS; otherwise, they are denied.

    Why this is correct

    The condition denies access when SecureTransport is false.

    Related concept

    Read the scenario before looking for a memorised answer.

  • The policy has no effect because it uses Deny.

    Why it's wrong here

    Deny is effective.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates often think a `Deny` statement with a condition is ineffective or only applies to specific actions, but in reality, the `Deny` with `StringNotEquals` on `aws:SecureTransport` explicitly blocks all non-HTTPS requests, making it a powerful enforcement mechanism.

Detailed technical explanation

How to think about this question

The `aws:SecureTransport` condition key evaluates the `True` or `False` value of the `SecureTransport` property of the request, which indicates whether the request was sent over TLS. When combined with `StringNotEquals`, the policy denies requests where `SecureTransport` is not `true`, effectively blocking HTTP. This is a common pattern for enforcing encryption in transit, and it overrides any `Allow` statements that might otherwise grant access over HTTP.

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 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.

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

Related practice questions

Related DVA-C02 practice-question pages

Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.

Practice this exam

Start a free DVA-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 DVA-C02 question test?

Security — This question tests Security — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: All requests to the bucket must use HTTPS; otherwise, they are denied. — The bucket policy includes a `Deny` effect with a `StringNotEquals` condition on `aws:SecureTransport`, which denies any request that does not use HTTPS. Since the `Principal` is set to `*`, this applies to all users, including anonymous users. Therefore, any request made over HTTP is denied, effectively requiring HTTPS for all access.

What should I do if I get this DVA-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 →

How Courseiva writes practice questions · Editorial policy

Same concept, more angles

1 more ways this is tested on DVA-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 developer attaches the above S3 bucket policy to my-bucket. A user tries to upload an object using HTTP (not HTTPS). What will happen?

hard
  • A.The upload succeeds because the Deny effect only applies if the condition is true
  • B.The upload succeeds if the user also has an Allow in another policy
  • C.The upload is denied
  • D.The upload succeeds because there is no Allow statement

Why C: The correct answer is C. The bucket policy includes a Deny statement that denies s3:PutObject when the condition aws:SecureTransport equals false. Since the user is using HTTP (not HTTPS), SecureTransport is false, so the Deny applies and the upload is denied. Option A is wrong because the Deny effect does apply when the condition is true. Option B is wrong because even if the user has an Allow from another policy, an explicit Deny always overrides any Allow. Option D is wrong because the Deny statement explicitly denies the action; an explicit Deny does not require a matching Allow statement to be effective.

Keep practising

More DVA-C02 practice questions

Last reviewed: Jul 4, 2026

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.

Loading comments…

Sign in to join the discussion.

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.