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PMI-ACP · Question #409

PMI-ACP Question #409: Real Exam Question with Answer & Explanation

The correct answer is C: Tail. In Agile, the 'Tail' (also called the 'Release Tail' or 'Hardening Sprint' in some frameworks) refers to the period at the end of a project or release cycle dedicated to stabilization activities — beta testing, regression testing, integration, documentation, and defect fixing.

Submitted by haruto_sh· Apr 18, 2026Value-driven Delivery

Question

What is the Agile term for the time period when some or all of the following occur: beta testing, regression testing, product integration, integration testing, documentation, defect fixing?

Options

  • ASpike
  • BCode Freeze
  • CTail
  • DLag

Explanation

In Agile, the 'Tail' (also called the 'Release Tail' or 'Hardening Sprint' in some frameworks) refers to the period at the end of a project or release cycle dedicated to stabilization activities — beta testing, regression testing, integration, documentation, and defect fixing. It represents the work needed to finalize and ship the product after the main development iterations are complete. A 'Spike' is a time-boxed research task; 'Code Freeze' is a point in time rather than a period; 'Lag' is a scheduling term unrelated to this concept.

Topics

#Agile Terminology#Release Preparation#Testing Phases#Defect Management

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