The answer is yes, the policy correctly grants the required permissions. This works because the IAM policy uses a resource ARN that scopes GetObject and PutObject actions to the `training/` folder, while the ListBucket action is paired with a `s3:prefix` condition set to `training/*`, which restricts the listing operation to only objects under that prefix. On the AWS Certified Machine Learning Specialty MLS-C01 exam, this scenario tests your understanding of how to combine resource-level permissions with condition keys to achieve folder-level access in S3, a common pattern for SageMaker notebook instances that must isolate training data. A frequent trap is assuming that ListBucket alone grants access to all objects in the bucket, but the condition key is what enforces the folder boundary. Memory tip: think of ListBucket as the "directory" permission—without a prefix condition, it opens the whole bucket, so always pair it with `s3:prefix` to lock it to a specific folder.
MLS-C01 Exploratory Data Analysis Practice Question
This MLS-C01 practice question tests your understanding of exploratory data analysis. 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 data scientist is setting up an IAM policy for a SageMaker notebook instance that needs to read and write data in the 'training/' folder of an S3 bucket, and also list objects in the bucket. Does the policy satisfy the requirements?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Yes, the policy correctly grants the required permissions.
Option A is correct. The policy allows GetObject and PutObject on the training/ folder, and ListBucket with a condition restricting prefix to training/*, which allows listing only that prefix. Option B is wrong because the policy works. Option C is wrong because the condition is valid. Option D is wrong because the policy is sufficient.
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.
✓
Yes, the policy correctly grants the required permissions.
Why this is correct
The policy grants read/write on objects under training/ and list with prefix condition.
Related concept
Read the scenario before looking for a memorised answer.
✗
No, the policy must also include s3:DeleteObject for data cleaning.
Why it's wrong here
Delete permission is not required per the scenario.
✗
No, the policy misses s3:GetObject for the bucket itself.
Why it's wrong here
GetObject is on objects, not bucket; ListBucket is correctly added.
✗
No, the condition on ListBucket is invalid.
Why it's wrong here
The condition s3:prefix is valid for ListBucket.
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.
Trap categories for this question
Scenario analysis trap
Delete permission is not required per the scenario.
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 MLS-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.
Exploratory Data Analysis — This question tests Exploratory Data Analysis — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Yes, the policy correctly grants the required permissions. — Option A is correct. The policy allows GetObject and PutObject on the training/ folder, and ListBucket with a condition restricting prefix to training/*, which allows listing only that prefix. Option B is wrong because the policy works. Option C is wrong because the condition is valid. Option D is wrong because the policy is sufficient.
What should I do if I get this MLS-C01 question wrong?
Identify which MLS-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.
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 MLS-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 MLS-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.