The answer is that the latest snapshot copy had not completed before the outage. Cross-region EBS snapshot copies are asynchronous operations, meaning the data is transferred in the background after the copy request is initiated. If the source region becomes unavailable before the transfer finishes, the destination region will only contain a partial or incomplete snapshot, which cannot be used for a full restore. On the AWS Certified SAP on AWS Specialty PAS-C01 exam, this scenario tests your understanding of DR readiness and the asynchronous nature of cross-region snapshot replication, a common trap where candidates assume a copy request implies immediate availability. A key memory tip is to think of it like a file upload: just because you clicked “copy” doesn’t mean the file is fully on the other side until the progress bar hits 100%.
PAS-C01 Operations and Maintenance Practice Question
This PAS-C01 practice question tests your understanding of operations and maintenance. 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 company runs SAP on AWS and has configured a cross-region DR strategy using Amazon EBS snapshots. The DR region is in us-west-2. After a region-wide outage, the administrator attempts to restore the snapshots but finds the latest snapshot is incomplete. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The latest snapshot copy had not completed before the outage
Option B is correct because cross-region snapshot copies are asynchronous and may fail if the source region becomes unavailable. Option A is wrong because IAM does not prevent copying. Option C is wrong because KMS keys can be used cross-region with proper configuration. Option D is wrong because the snapshot ID would not become invalid.
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.
✗
The IAM role used for copying snapshots does not have permissions
Why it's wrong here
If permissions were missing, the copy would not start at all.
✓
The latest snapshot copy had not completed before the outage
Why this is correct
Cross-region copy takes time; if outage occurs during copy, snapshot may be partial.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The snapshots are encrypted with a KMS key that is not available in us-west-2
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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Got this wrong? Here's your next step.
Identify which PAS-C01 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.
Operations and Maintenance — This question tests Operations and Maintenance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The latest snapshot copy had not completed before the outage — Option B is correct because cross-region snapshot copies are asynchronous and may fail if the source region becomes unavailable. Option A is wrong because IAM does not prevent copying. Option C is wrong because KMS keys can be used cross-region with proper configuration. Option D is wrong because the snapshot ID would not become invalid.
What should I do if I get this PAS-C01 question wrong?
Identify which PAS-C01 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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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This PAS-C01 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 PAS-C01 exam.
Question Discussion
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