- A
The policy uses 'GetObject' instead of 'ListBucket'
Why wrong: The action is appropriate, but the risk is about public access.
- B
The IP address is not properly masked
Why wrong: The IP is specific, but the risk is broader than masking.
- C
The bucket is still exposed to anyone who can spoof that IP
If an attacker can spoof the allowed IP, they can access the bucket; also, the policy allows the principal '*' which is public.
- D
The condition uses 'aws:SourceIp' which is deprecated
Why wrong: 'aws:SourceIp' is valid; the issue is the public principal.
Question 585 of 1,000
CCSP Cloud Application Security Practice Question
This CCSP practice question tests your understanding of cloud application security. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
A security engineer is reviewing an S3 bucket policy that grants 's3:GetObject' access to 'Principal: *' and 'Condition: {IpAddress: {aws:SourceIp: ["1.2.3.4/32"]}}'. Despite the IP restriction, why is this policy still considered risky?
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 bucket is still exposed to anyone who can spoof that IP
The policy grants public access to a specific IP, but if that IP is compromised or the condition is misconfigured, it can lead to data exposure; additionally, the bucket policy may override other controls.
Key principle: Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
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 policy uses 'GetObject' instead of 'ListBucket'
Why it's wrong here
The action is appropriate, but the risk is about public access.
- ✗
The IP address is not properly masked
Why it's wrong here
The IP is specific, but the risk is broader than masking.
- ✓
The bucket is still exposed to anyone who can spoof that IP
Why this is correct
If an attacker can spoof the allowed IP, they can access the bucket; also, the policy allows the principal '*' which is public.
Related concept
CIDR notation defines the prefix length.
- ✗
The condition uses 'aws:SourceIp' which is deprecated
Why it's wrong here
'aws:SourceIp' is valid; the issue is the public principal.
Common exam traps
Common exam trap: usable hosts are not the same as total addresses
Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.
Detailed technical explanation
How to think about this question
Subnetting questions test whether you can identify the network, broadcast address, usable range, mask and correct subnet. Slow down enough to calculate the block size correctly.
KKey Concepts to Remember
- CIDR notation defines the prefix length.
- Block size helps identify subnet boundaries.
- Network and broadcast addresses are not usable hosts in normal IPv4 subnets.
- The required host count determines the smallest suitable subnet.
TExam Day Tips
- Write the block size before choosing the subnet.
- Check whether the question asks for hosts, subnets or a specific address range.
- Do not confuse /24, /25, /26 and /27 host counts.
Key takeaway
Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Real-world example
How this comes up in practice
A security analyst at a medium-sized enterprise encounters this scenario during an investigation or architecture review. The correct answer reflects best practice for the specific threat or control described. Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets. Security exam questions test whether you can match controls to threats in context — not just recall definitions.
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 |
What to study next
Got this wrong? Here's your next step.
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related CCSP subnetting questions on CIDR, address ranges, and subnet selection.
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FAQ
Questions learners often ask
What does this CCSP question test?
Cloud Application Security — This question tests Cloud Application Security — CIDR notation defines the prefix length..
What is the correct answer to this question?
The correct answer is: The bucket is still exposed to anyone who can spoof that IP — The policy grants public access to a specific IP, but if that IP is compromised or the condition is misconfigured, it can lead to data exposure; additionally, the bucket policy may override other controls.
What should I do if I get this CCSP question wrong?
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related CCSP subnetting questions on CIDR, address ranges, and subnet selection.
What is the key concept behind this question?
CIDR notation defines the prefix length.
About these practice questions
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Last reviewed: Jul 4, 2026
This CCSP practice question is part of Courseiva's free ISC2 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 CCSP exam.
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