SAP-C02 Continuous Improvement for Existing Solutions Practice Question
A company uses AWS CloudFormation to deploy resources. The operations team notices that some stack updates fail due to resource conflicts. What is the BEST practice to minimize such failures?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use AWS CloudFormation change sets before updating the stack.
Change sets allow you to preview the changes before execution, helping to identify potential conflicts. Option A is wrong because termination protection prevents accidental deletion but does not address resource conflicts during updates. Option C is wrong because nested stacks are for organizing stacks, not for previewing changes. Option D is wrong because stack policies protect specific resources from updates, but they don't preview changes or prevent conflicts.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Enable termination protection on the stack.
Why it's wrong here
Termination protection prevents deletion, not update conflicts.
- ✓
Use AWS CloudFormation change sets before updating the stack.
Why this is correct
Change sets allow you to review proposed changes and identify conflicts before execution.
- ✗
Use AWS CloudFormation nested stacks.
Why it's wrong here
Nested stacks organize templates but do not directly address update conflicts.
- ✗
Use stack policies to protect critical resources.
Why it's wrong here
Stack policies protect resources from unintentional updates but do not prevent update conflicts.
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