DevOps Professional · Module 6: Governance, cost and change control · Lab
Do Cost and Capacity Math on Given Assumptions
45 min hands-on · Core
A local machine with a fixture request path and the provided assumption price sheet (dated, labeled training assumptions). No real provider prices anywhere.
Local guide: run the steps below on your own machine in order, then check the validation list.
Objectives
- Compute per-request cost per hop from the assumptions
- Compare two options on identical assumptions
- Name the deciding assumption with a sensitivity note
Step 1
Price the path
Take the fixture path (three hops with traffic, transfer and reservation figures) and the assumption sheet. Compute per-request cost per hop and name the expensive hop with quoted numbers.
Step 2
Compare honestly
Compare the sticker-cheap option against the current shape on identical assumptions (same traffic, headroom, growth). Quote the ranking and show transfer deciding it.
Step 3
Write the sensitivity
Name which assumption decides the ranking and how far it must move to flip it. Date and label every price as a training assumption in the record.
How to confirm it worked
- Per-hop math quoted with the expensive hop named
- Option comparison on identical assumptions quoted
- Sensitivity note with the flip point
- Prices dated and labeled training assumptions