Correct Answer: C

Regular backlog refinement typically occurs during the Build phase. This is when the development team engages in iterative cycles of work and needs to continuously update and prioritize the backlog to ensure that upcoming sprints are well-defined and focused on delivering the most valuable features. It is during this phase that refinement sessions are held to further detail the requirements and address any changes or new findings, thereby keeping the backlog relevant and actionable.

Correct Answer: B

Unit testing is typically performed in the development environment. This is because unit tests are designed to verify the functionality of individual components or units of code during the development phase. Performing unit tests in the development environment allows developers to catch and fix bugs early before the code is moved to other environments such as testing, staging, or production.

Correct Answer: C

In Scrum methodology, it is the Developers who are responsible for estimating the level of effort for Product Backlog items. They have the technical expertise and understanding required to evaluate the complexity and the amount of work needed to implement the items. The Product Owner manages the Product Backlog and prioritizes items but does not estimate effort. Testers and the Scrum Master also play crucial roles in the process but are not responsible for effort estimation.

Correct Answer: A

Story-pointing is an activity that occurs during the Build phase of the Appian Delivery Methodology. This phase typically involves detailed planning and execution, including tasks such as assigning story points to user stories. Assigning story points is part of the agile planning and scrum ceremonies which are conducted during the Build phase.

Correct Answer: A

In the Scrum lifecycle, the team should agree on the requirements for the Definition of Done (DoD) before getting started on the project. This is because having a clear understanding of what constitutes a completed task is crucial for ensuring that deliverables meet the necessary standards from the very beginning. Agreeing on the DoD helps in setting clear expectations, improving quality, and ensuring transparency within the team. It forms a foundational part of the initial planning phase and guides subsequent development activities.