The correct answer is to generate pre-signed URLs for the objects the auditor needs to read, with an expiration time. This approach is the most secure because a pre-signed URL grants temporary access to a specific S3 object without making the bucket public or sharing long-term AWS credentials; the URL embeds a signature that expires after a set duration, ensuring the auditor’s access is both granular and time-limited. On the AWS Certified Security Specialty SCS-C02 exam, this question tests your understanding of how to grant temporary access to external parties while maintaining the principle of least privilege—a common trap is choosing a bucket policy with an IP condition, which is less granular and requires knowing the auditor’s IP in advance. Remember the mnemonic “PURL for the external audit”: Pre-signed URLs are the only option that combines object-level specificity, time-bound expiration, and no credential sharing.
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 wants to allow an external auditor to read all objects in a specific S3 bucket for a limited time. What is the most secure way to grant this access?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Generate pre-signed URLs for the objects the auditor needs to read, with an expiration time.
Option C is correct because a pre-signed URL can grant temporary access to specific objects, and the URL can have an expiration time. Option A is wrong because making the bucket public is not secure. Option B is wrong because creating an IAM user for the auditor and sharing credentials is not ideal for external parties. Option D is wrong because a bucket policy with a condition for a specific IP address is an option but requires the auditor's IP and may not be as granular.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Generate pre-signed URLs for the objects the auditor needs to read, with an expiration time.
Why this is correct
Pre-signed URLs provide time-limited access without sharing credentials.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use a bucket policy that allows access only from the auditor's IP address.
Why it's wrong here
This requires the auditor's IP and may not be feasible if the auditor's IP changes.
✗
Make the bucket public and restrict access via IP address in the bucket policy.
Why it's wrong here
Public bucket is not secure even with IP restriction.
✗
Create an IAM user for the auditor with read-only access to the bucket and share the access keys.
Why it's wrong here
Managing IAM users for external auditors is not best practice.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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.
What to study next
Got this wrong? Here's your next step.
Identify which SCS-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Identity and Access Management — This question tests Identity and Access Management — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Generate pre-signed URLs for the objects the auditor needs to read, with an expiration time. — Option C is correct because a pre-signed URL can grant temporary access to specific objects, and the URL can have an expiration time. Option A is wrong because making the bucket public is not secure. Option B is wrong because creating an IAM user for the auditor and sharing credentials is not ideal for external parties. Option D is wrong because a bucket policy with a condition for a specific IP address is an option but requires the auditor's IP and may not be as granular.
What should I do if I get this SCS-C02 question wrong?
Identify which SCS-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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This SCS-C02 practice question is part of Courseiva's free Amazon Web Services 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 SCS-C02 exam.
Question Discussion
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