Lean & Flow
39 practice questions with explanations — 15 free to try
PassNova has 39 DevOps Foundation practice questions on Lean & Flow, each with a clear explanation. A 15-question taster is free with no sign-up; the full bank is part of PassNova Premium. Updated for 2026.
Lean & Flow: example questions & answers
3 worked examples with answers and explanations below. Try 15 DevOps Foundation questions free in the browser; the full 39-question Lean & Flow bank is part of PassNova Premium.
Value Stream Mapping is primarily used in DevOps to achieve what?
- ATo design the user interface and navigation flow of an application before any development work begins
- BTo replace all automated testing
- CTo assign salaries to team members
- DTo visualise the steps, delays, and handoffs in a process and identify where value is added or lost✓
Answer: Value Stream Mapping visualises the end-to-end flow of work, exposing delays, handoffs, and waste so teams can target the biggest opportunities to improve flow and reduce lead time.
In Lean thinking applied to DevOps, what does the term 'waste' (muda) refer to?
- AAny activity that consumes resources but does not add value for the customer✓
- BOnly the physical materials and offcuts thrown away by a factory production line at the end of a shift
- CThe time spent gathering and acting on customer feedback during a delivery cycle
- DThe annual licensing cost of purchasing and renewing the team's automation tooling
Answer: In Lean, waste (muda) is any activity that consumes time or resources without adding value to the customer, such as queuing, rework, handoffs, and partially done work.
What is the purpose of a Work-In-Progress (WIP) limit on a Kanban board?
- ATo increase the amount of work started simultaneously
- BTo remove the need for prioritisation
- CTo cap the number of items in progress so flow improves and bottlenecks become visible✓
- DTo guarantee that every task is completed on the same day
Answer: A WIP limit restricts how many items can be in progress at once, reducing multitasking and context switching, exposing bottlenecks, and improving the overall flow of work.