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Question 852 of 1,621
Network Security, Compliance and GovernancemediumMultiple ChoiceObjective-mapped

ANS-C01 Network Security, Compliance and Governance Practice Question

Exhibit

Refer to the exhibit.
{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Principal": "*",
      "Action": "s3:GetObject",
      "Resource": "arn:aws:s3:::example-bucket/*",
      "Condition": {
        "IpAddress": {
          "aws:SourceIp": "192.0.2.0/24"
        }
      }
    }
  ]
}

Refer to the exhibit. A security engineer is reviewing this S3 bucket policy. The bucket contains sensitive data that should only be accessible from the corporate network (192.0.2.0/24). What is a potential security issue with this policy?

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 does not require authentication; anonymous access is allowed from the specified IP range

The policy allows any principal (Principal: '*') to perform the s3:GetObject action under the condition that the request comes from the specified IP range. However, this condition only checks the IP address; it does not require authentication. If the bucket is publicly accessible (no bucket policy or ACL denying anonymous access), then unauthenticated requests from the allowed IP range would be allowed, which is a security issue. Option A is wrong because the condition belongs on the Action element, not the Principal. Option B is wrong because the Resource ARN includes the bucket name correctly (arn:aws:s3:::example-bucket/*). Option D is wrong because the IP range is specific and appropriate for the requirement.

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 condition should be applied to the Principal element

    Why it's wrong here

    Conditions are applied to the statement, not to the principal directly.

  • The Resource ARN is missing the bucket name

    Why it's wrong here

    The ARN is correct: arn:aws:s3:::example-bucket/*

  • The policy does not require authentication; anonymous access is allowed from the specified IP range

    Why this is correct

    The Principal is "*", which includes anonymous users.

  • The IP address range is not specific enough

    Why it's wrong here

    The range is specific and correct for the corporate network.

Visual reference

Source Router + ACL permit 10.0.0.0/8 deny any Server 10.0.0.5 ✓ 192.168.1.1 ✗ dropped ACLs evaluate top-down; first match wins — implicit deny all at end

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

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Last reviewed: Jun 20, 2026

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