DBS-C01 Workload-Specific Database Design Practice Question
This DBS-C01 practice question tests your understanding of workload-specific database design. 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 developer is configuring IAM permissions for a Lambda function that accesses a DynamoDB table named 'Orders'. The policy shown is attached to the Lambda execution role. The function needs to delete items but only if the item contains only 'order_id' and 'status' attributes. Which statement about this policy is correct?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The function can only delete items that contain exactly the attributes 'order_id' and 'status'
Option D is correct because the condition restricts DeleteItem to items that have only those attributes. Option A is wrong because the condition is on the delete action, not on the resource. Option B is wrong because the policy does allow DeleteItem with the condition. Option C is wrong because the function has GetItem and Query permissions.
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 function can delete any item in the Orders table because the condition is on the resource
Why it's wrong here
The condition is on the action, not the resource.
✗
The function cannot delete any items because the DeleteItem action is not allowed
Why it's wrong here
DeleteItem is allowed with a condition.
✗
The function cannot call Query on the table because it is not listed in the actions
Why it's wrong here
Query is allowed in the first statement.
✓
The function can only delete items that contain exactly the attributes 'order_id' and 'status'
Why this is correct
The condition ensures only items with those attributes can be deleted.
Related concept
Read the scenario before looking for a memorised answer.
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 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 DBS-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.
Workload-Specific Database Design — This question tests Workload-Specific Database Design — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The function can only delete items that contain exactly the attributes 'order_id' and 'status' — Option D is correct because the condition restricts DeleteItem to items that have only those attributes. Option A is wrong because the condition is on the delete action, not on the resource. Option B is wrong because the policy does allow DeleteItem with the condition. Option C is wrong because the function has GetItem and Query permissions.
What should I do if I get this DBS-C01 question wrong?
Identify which DBS-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.
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Question Discussion
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