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What is the primary purpose of the update-stack command in AWS CloudFormation?

easy📝 Conceptual Q11 of 15
AWS - CloudFormation
What is the primary purpose of the update-stack command in AWS CloudFormation?
ATo create a new stack from a template
BTo safely change existing cloud resources managed by a stack
CTo delete all resources created by a stack
DTo list all stacks in your AWS account
Step-by-Step Solution
Solution:

  1. Step 1: Understand the role of update-stack

    The update-stack command is used to modify resources that are already managed by an existing CloudFormation stack.

  2. Step 2: Differentiate from other commands

    Unlike delete-stack which removes resources, update-stack changes them safely without deleting the stack.

  3. Final Answer:

    To safely change existing cloud resources managed by a stack -> Option B

  4. Quick Check:

    update-stack = change resources safely [OK]
Quick Trick: Update-stack changes resources; delete-stack removes them [OK]
Common Mistakes:
  • Confusing update-stack with delete-stack
  • Thinking update-stack creates new stacks
  • Assuming update-stack lists stacks

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