Question 153 of 1,740
Incident and Event ResponsemediumMultiple ChoiceObjective-mapped

DOP-C02 Incident and Event Response Practice Question

This DOP-C02 practice question tests your understanding of incident and event response. 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": "Allow",
      "Action": "s3:*",
      "Resource": "arn:aws:s3:::example-bucket/*"
    },
    {
      "Effect": "Deny",
      "Action": "s3:DeleteObject",
      "Resource": "arn:aws:s3:::example-bucket/*"
    }
  ]
}
```

An IAM policy attached to a user is shown in the exhibit. The user reports that they are unable to delete an object in the 'example-bucket' bucket. What is the reason for this?

Question 1mediummultiple choice
Full question →

Exhibit

Refer to the exhibit.

```
{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": "s3:*",
      "Resource": "arn:aws:s3:::example-bucket/*"
    },
    {
      "Effect": "Deny",
      "Action": "s3:DeleteObject",
      "Resource": "arn:aws:s3:::example-bucket/*"
    }
  ]
}
```

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 explicit Deny statement overrides the Allow

Option B is correct because an explicit Deny overrides any Allow. The Deny action s3:DeleteObject explicitly denies the delete, even though the Allow all s3 actions includes delete. Option A is wrong because the resource ARN matches. Option C is wrong because the policy allows all s3 actions, but the Deny blocks delete. Option D is wrong because the policy is valid.

Key principle: ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.

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 resource ARN does not match the bucket name

    Why it's wrong here

    ARN matches bucket and objects.

  • The explicit Deny statement overrides the Allow

    Why this is correct

    Deny always takes precedence over Allow.

    Related concept

    Standard ACLs match source addresses.

  • The user does not have permissions to perform s3:DeleteObject

    Why it's wrong here

    The Allow includes all s3 actions, but Deny blocks it.

  • The policy has a syntax error

    Why it's wrong here

    The policy is syntactically correct.

Common exam traps

Common exam trap: ACLs stop at the first match

ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.

Detailed technical explanation

How to think about this question

ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.

KKey Concepts to Remember

  • Standard ACLs match source addresses.
  • Extended ACLs can match source, destination, protocol and ports.
  • The first matching ACL entry is used.
  • There is usually an implicit deny at the end.

TExam Day Tips

  • Check inbound versus outbound direction.
  • Read the ACL from top to bottom.
  • Look for a broader permit or deny above the intended line.

Key takeaway

ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.

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.

What to study next

Got this wrong? Here's your next step.

Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related DOP-C02 ACL questions on filtering logic and placement.

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FAQ

Questions learners often ask

What does this DOP-C02 question test?

Incident and Event Response — This question tests Incident and Event Response — Standard ACLs match source addresses..

What is the correct answer to this question?

The correct answer is: The explicit Deny statement overrides the Allow — Option B is correct because an explicit Deny overrides any Allow. The Deny action s3:DeleteObject explicitly denies the delete, even though the Allow all s3 actions includes delete. Option A is wrong because the resource ARN matches. Option C is wrong because the policy allows all s3 actions, but the Deny blocks delete. Option D is wrong because the policy is valid.

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

Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related DOP-C02 ACL questions on filtering logic and placement.

What is the key concept behind this question?

Standard ACLs match source addresses.

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Last reviewed: Jun 20, 2026

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