CST Agile Estimation Techniques & User Stories 2

Question 1

What best describes 'relative estimation' in the context of Agile?

Accepted Answer

Comparing items to each other to determine relative effort, complexity, or size

Answer

Relative estimation compares items against each other (e.g., 'this story is about twice as complex as that one') rather than assigning absolute time values, which tends to produce more consistent results.

Question 2

What is a 'spike' in Agile, and what is its primary purpose?

Accepted Answer

A time-boxed research or exploration task designed to reduce uncertainty before estimation

Answer

A spike is a time-boxed effort to investigate a technical question or reduce uncertainty, allowing the team to make more informed estimates or design decisions on subsequent stories.

Question 3

What does a 'Definition of Ready' (DoR) ensure about User Stories before Sprint Planning?

Accepted Answer

That User Stories meet agreed lightweight criteria making them clear and small enough to plan

Answer

The Definition of Ready ensures stories have met lightweight criteria — such as being small enough and having clear acceptance criteria — so the team can confidently plan and execute them in a Sprint.

Question 4

T-shirt sizing (XS, S, M, L, XL) is best used for which estimation scenario?

Accepted Answer

Initial high-level estimation of many backlog items, especially when details are still uncertain

Answer

T-shirt sizing is a quick, relative estimation technique ideal for early-stage backlog grooming when items lack sufficient detail for precise story point estimates.

Question 5

According to the INVEST criteria, what does 'Negotiable' mean for a User Story?

Accepted Answer

The story's scope and details can be discussed and adapted through team collaboration

Answer

Negotiable means a User Story is not a rigid contract; its scope and implementation details are open for collaborative discussion between the team and the Product Owner.

(CST) Certified Scrum Trainer Practice Test

(CST) Certified Scrum Trainer Practice Test

CST Agile Estimation Techniques & User Stories 2