mediumMultiple Choice
CV0-004 Practice Question: Refer to the exhibit
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": "203.0.113.0/24"
}
}
}
]
}
```Refer to the exhibit. What is the effect of this bucket policy?
⚠ Common exam trap
Candidates often confuse an Allow-with-Condition policy for a Deny policy — candidates see an IP restriction and assume everything else is blocked, when in fact the policy only grants read access from that range and says nothing about other principals or actions.
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
✓
It allows anyone to read objects in example-bucket only if they come from the specified IP range.
The bucket policy shown grants s3:GetObject (read) permission to Principal '*' (everyone) but wraps it in a Condition that restricts access to requests originating from the specified IP range using the aws:SourceIp condition key. Because the action is GetObject and the condition limits the source addresses, only readers coming from that CIDR block can retrieve objects. This is a classic allow-with-condition policy, not a deny or authentication 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.
- ✗
It requires users to authenticate with AWS IAM before accessing the bucket.
Why it's wrong here
A bucket policy grants or denies access to principals directly and does not force IAM authentication; anonymous requests can succeed if the policy allows them. Requiring IAM authentication is the role of IAM policies or blocking public access settings.
- ✓
It allows anyone to read objects in example-bucket only if they come from the specified IP range.
Why this is correct
The bucket policy's Condition block restricts the Allow effect to requests originating from the named CIDR range, so anonymous read access succeeds only for source addresses inside that range. All other IPs are denied, satisfying the stem's constraint of limiting public reads to a specified network.
- ✗
It allows only the specified IP range to write objects.
Why it's wrong here
The policy's Action and Resource determine whether writes are permitted; an IP condition in the Principal or Condition restricts who may act, not the operation itself. Write-only restriction would need an explicit s3:PutObject action with no read actions granted.
- ✗
It denies all access to the bucket except from the specified IP range.
Why it's wrong here
A Deny statement with an IpNotIpAddress condition excludes only that range, leaving all other addresses unaffected unless a separate Allow exists. Denying everything except one range requires an explicit Deny on Principal '*' with that condition.
Visual reference
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
Go deeper
Related to this question
About these practice questions
This CV0-004 question is part of Courseiva's 834-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CompTIA exam blueprint
This CV0-004 practice question is part of Courseiva's free CompTIA 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 CV0-004 exam.