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Which CloudFormation feature lets you reference a value created in one stack from another stack in the SAME account/Region?
ADisabling CloudFormation entirely
BStack Outputs + `Fn::ImportValue` (cross-stack references)
CManually copying the value into every template every deploy
DStoring all CloudFormation state in Amazon Glacier
Answer & Solution
Correct answer: B. Stack Outputs + `Fn::ImportValue` (cross-stack references)
Outputs + `Fn::ImportValue` are the canonical cross-stack reference. Manual copy-paste is the anti-pattern; disabling CloudFormation defeats the purpose; Glacier is for archival.
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