hardMultiple ChoiceObjective-mapped
CV0-004 Practice Question: A cloud administrator is troubleshooting an issue…
Exhibit
Refer to the exhibit.
```
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": "s3:GetObject",
"Resource": "arn:aws:s3:::example-bucket/*",
"Condition": {
"IpAddress": {
"aws:SourceIp": "192.0.2.0/24"
}
}
}
]
}
```A cloud administrator is troubleshooting an issue where users from the 192.0.2.0/24 network cannot access objects in an S3 bucket. The bucket policy is shown in the exhibit. What is the most likely cause of the issue?
⚠ Common exam trap
CompTIA often tests the distinction between object-level actions (s3:GetObject) and bucket-level actions (s3:ListBucket), trapping candidates who assume that granting read access automatically includes listing permissions.
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 grant the s3:ListBucket action.
The bucket policy grants s3:GetObject but not s3:ListBucket. Without s3:ListBucket, users cannot list the objects in the bucket, so they cannot discover the object keys needed to access objects. Even if they know the exact object key, the missing ListBucket action prevents the initial listing operation, which is required for many S3 access patterns.
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 uses an incorrect IP address format.
Why it's wrong here
The CIDR notation is correct.
- ✓
The policy does not grant the s3:ListBucket action.
Why this is correct
Without ListBucket, users cannot list objects, only get them if they know the exact key.
- ✗
The policy is missing a required statement ID.
Why it's wrong here
Statement ID is optional in bucket policies.
- ✗
The resource ARN does not include the bucket itself.
Why it's wrong here
The ARN includes the bucket and objects via /*.
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
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.