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CAS-004 Practice Question: Based on the exhibit, what is the primary purpose…

Exhibit

Refer to the exhibit.

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": "s3:GetObject",
      "Resource": "arn:aws:s3:::corporate-bucket/*",
      "Condition": {
        "IpAddress": {
          "aws:SourceIp": [
            "10.0.0.0/16",
            "192.168.1.0/24"
          ]
        }
      }
    }
  ]
}

Based on the exhibit, what is the primary purpose of the condition in this IAM 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

✓

Restrict access to requests originating from the specified IP ranges

The condition in the IAM policy uses the `aws:SourceIp` key to restrict access to requests originating from the specified IP ranges. Option A is incorrect because the condition does not address encryption in transit. Option B is incorrect because the policy does not allow all traffic; it allows only requests from the specified IPs. Option C is incorrect because the policy is an allow with a condition, not a deny statement. The condition effectively limits which IPs can perform the allowed actions, making D the primary purpose.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • ✗

    Enable encryption in transit for the S3 bucket

    Why it's wrong here

    Encryption requires additional policy.

  • ✗

    Allow all incoming traffic to the S3 bucket

    Why it's wrong here

    The condition restricts to specific IPs.

  • ✗

    Deny access from the specified IP ranges

    Why it's wrong here

    The Effect is Allow, not Deny.

  • ✓

    Restrict access to requests originating from the specified IP ranges

    Why this is correct

    The condition allows only requests from those IPs.

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Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

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