This PAS-C01 practice question tests your understanding of migration. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
An IAM policy for a migration team is shown in the exhibit. The team is unable to start a DMS replication task. What is the most likely missing permission?
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.
dms:CreateReplicationInstance and dms:CreateEndpoint
Correct. The migration team's policy is missing dms:CreateReplicationInstance and dms:CreateEndpoint, which are required to start a DMS replication task.
B
s3:ListBucket
Why wrong: Incorrect. s3:ListBucket may be needed for accessing S3 as a source or target, but it is not the missing permission for starting the task.
C
kms:Decrypt
Why wrong: Incorrect. kms:Decrypt is not required for starting a DMS task unless using encrypted endpoints; it is not the most likely missing permission.
D
ec2:CreateNetworkInterface
Why wrong: Incorrect. ec2:CreateNetworkInterface is automatically handled by DMS; the IAM policy does not need to include it explicitly.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
dms:CreateReplicationInstance and dms:CreateEndpoint
The DMS replication task requires permissions to create and manage replication instances and endpoints. The IAM policy displayed in the exhibit does not include 'dms:CreateReplicationInstance' or 'dms:CreateEndpoint', so the migration team cannot start the task. Option B (s3:ListBucket) is not the missing permission because S3 permissions are likely already present or not required for starting a DMS task. Option C (kms:Decrypt) is not needed unless the task uses encrypted endpoints, which is not indicated. Option D (ec2:CreateNetworkInterface) is a permission that DMS uses, but the most likely missing permissions are the DMS-specific create actions listed in option A.
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.
✓
dms:CreateReplicationInstance and dms:CreateEndpoint
Why this is correct
Correct. The migration team's policy is missing dms:CreateReplicationInstance and dms:CreateEndpoint, which are required to start a DMS replication task.
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.
✗
s3:ListBucket
Why it's wrong here
Incorrect. s3:ListBucket may be needed for accessing S3 as a source or target, but it is not the missing permission for starting the task.
✗
kms:Decrypt
Why it's wrong here
Incorrect. kms:Decrypt is not required for starting a DMS task unless using encrypted endpoints; it is not the most likely missing permission.
✗
ec2:CreateNetworkInterface
Why it's wrong here
Incorrect. ec2:CreateNetworkInterface is automatically handled by DMS; the IAM policy does not need to include it explicitly.
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.
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.
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.
Migration — This question tests Migration — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: dms:CreateReplicationInstance and dms:CreateEndpoint — The DMS replication task requires permissions to create and manage replication instances and endpoints. The IAM policy displayed in the exhibit does not include 'dms:CreateReplicationInstance' or 'dms:CreateEndpoint', so the migration team cannot start the task. Option B (s3:ListBucket) is not the missing permission because S3 permissions are likely already present or not required for starting a DMS task. Option C (kms:Decrypt) is not needed unless the task uses encrypted endpoints, which is not indicated. Option D (ec2:CreateNetworkInterface) is a permission that DMS uses, but the most likely missing permissions are the DMS-specific create actions listed in option A.
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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
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
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.