CST Velocity, Cycle Time & Flow Metrics 2

Question 1

A Scrum Team notices their velocity has been steadily declining for three sprints. What is the MOST appropriate first step?

Accepted Answer

Inspect the causes during the Sprint Retrospective

Answer

The Retrospective is the proper Scrum event to inspect and adapt on process issues like declining velocity.

Question 2

Cycle time in a Scrum context is BEST defined as:

Accepted Answer

The time from when work on an item begins until it is done

Answer

Cycle time measures the elapsed time from when active work begins on an item to when it reaches 'Done'.

Question 3

Which flow metric indicates the number of work items actively being worked on at any given time?

Accepted Answer

Work in Progress (WIP)

Answer

Work in Progress (WIP) counts items currently in an active state between started and done.

Question 4

Little's Law states that average cycle time equals average WIP divided by average throughput. If a team has 12 items in progress and completes 4 items per sprint, what is the average cycle time?

Accepted Answer

3 sprints

Answer

Little's Law: Cycle Time = WIP / Throughput = 12 / 4 = 3 sprints.

Question 5

A team's velocity varies significantly sprint to sprint (e.g., 20, 45, 15, 50 points). What does this MOST likely indicate?

Accepted Answer

There is high variability in story sizing or work predictability

Answer

High velocity variance typically signals inconsistent story sizing, unplanned work, or unpredictable capacity.

(CST) Certified Scrum Trainer Practice Test

(CST) Certified Scrum Trainer Practice Test

CST Velocity, Cycle Time & Flow Metrics 2