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Identity and Access Management →hardMultiple SelectObjective-mapped

SCS-C02 Identity and Access Management Practice Question

This SCS-C02 practice question tests your understanding of identity and access management. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 company has an S3 bucket that contains sensitive data. The security team wants to enforce that all access to the bucket must use HTTPS and that requests originating from outside the corporate network (as defined by a specific IP range 203.0.113.0/24) must be denied. Which THREE conditions should be included in the S3 bucket policy? (Choose THREE.)

A
"Condition": {"IpAddress": {"aws:SourceIp": "203.0.113.0/24"}}
Why wrong: This would allow only that IP range, but the requirement is to deny outside IPs; using IpAddress in an Allow statement would work, but the question asks for conditions to include in a Deny context.
B
"Condition": {"StringLike": {"aws:Referer": "https://corporate.internal/*"}}
Why wrong: This checks the HTTP referrer, which is not reliable for network-based access control.
C
"Condition": {"Bool": {"aws:SecureTransport": "true"}}
Enforces HTTPS by requiring SecureTransport to be true.
D
"Effect": "Deny", "Condition": {"NotIpAddress": {"aws:SourceIp": "203.0.113.0/24"}}
This Deny statement with NotIpAddress will deny any request not originating from the allowed IP range.
E
"Condition": {"NotIpAddress": {"aws:SourceIp": "203.0.113.0/24"}}
Denies requests that do not come from the corporate IP range.

Full breakdown with real-world context →

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

✓

"Condition": {"Bool": {"aws:SecureTransport": "true"}}

Options C, D, and E are correct. Option C uses the `aws:SecureTransport` condition to enforce HTTPS, which matches the requirement to deny non-HTTPS requests. Option D is a complete Deny statement with the `NotIpAddress` condition specifying the corporate IP range; this denies requests from outside that range. Option E is also correct as a condition element that, when used in a Deny statement, effectively denies requests from non-corporate IPs. Options A and B are incorrect: Option A uses `IpAddress` with the corporate range, which would only allow that range but not deny others; Option B uses `aws:Referer`, which checks the referrer header and not the source IP, thus not meeting the requirement.

Key principle: ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.

Answer analysis

Option-by-option breakdown

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

✗
"Condition": {"IpAddress": {"aws:SourceIp": "203.0.113.0/24"}}
Why it's wrong here
This would allow only that IP range, but the requirement is to deny outside IPs; using IpAddress in an Allow statement would work, but the question asks for conditions to include in a Deny context.
✗
"Condition": {"StringLike": {"aws:Referer": "https://corporate.internal/*"}}
Why it's wrong here
This checks the HTTP referrer, which is not reliable for network-based access control.
✓
"Condition": {"Bool": {"aws:SecureTransport": "true"}}
Why this is correct
Enforces HTTPS by requiring SecureTransport to be true.
Related concept
Standard ACLs match source addresses.
✓
"Effect": "Deny", "Condition": {"NotIpAddress": {"aws:SourceIp": "203.0.113.0/24"}}
Why this is correct
This Deny statement with NotIpAddress will deny any request not originating from the allowed IP range.
Related concept
Standard ACLs match source addresses.
✓
"Condition": {"NotIpAddress": {"aws:SourceIp": "203.0.113.0/24"}}
Why this is correct
Denies requests that do not come from the corporate IP range.
Related concept
Standard ACLs match source addresses.

Common exam traps

Common exam trap: ACLs stop at the first match

ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.

Detailed technical explanation

How to think about this question

ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.

KKey Concepts to Remember

Standard ACLs match source addresses.
Extended ACLs can match source, destination, protocol and ports.
The first matching ACL entry is used.
There is usually an implicit deny at the end.

TExam Day Tips

Check inbound versus outbound direction.
Read the ACL from top to bottom.
Look for a broader permit or deny above the intended line.

Key takeaway

ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.

Real-world example

How this comes up in practice

A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.

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 ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related SCS-C02 ACL questions on filtering logic and placement.

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FAQ

Questions learners often ask

What does this SCS-C02 question test?

Identity and Access Management — This question tests Identity and Access Management — Standard ACLs match source addresses..

What is the correct answer to this question?

The correct answer is: "Condition": {"Bool": {"aws:SecureTransport": "true"}} — Options C, D, and E are correct. Option C uses the `aws:SecureTransport` condition to enforce HTTPS, which matches the requirement to deny non-HTTPS requests. Option D is a complete Deny statement with the `NotIpAddress` condition specifying the corporate IP range; this denies requests from outside that range. Option E is also correct as a condition element that, when used in a Deny statement, effectively denies requests from non-corporate IPs. Options A and B are incorrect: Option A uses `IpAddress` with the corporate range, which would only allow that range but not deny others; Option B uses `aws:Referer`, which checks the referrer header and not the source IP, thus not meeting the requirement.

What should I do if I get this SCS-C02 question wrong?

What is the key concept behind this question?

Standard ACLs match source addresses.

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