Quiz

2988 questions of the kind that actually get asked — in interviews, in architecture review boards, and by the person who has to run the thing at 3 AM. Every answer states the trade-off rather than the slogan, and says when the obvious choice is the wrong one.

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4 questions in DORA Metrics.

Quiz

A team measures deployment frequency, lead time, change failure rate and recovery time. How should these be used, and how are they misused?

An organisation adopts delivery metrics and teams begin optimising the numbers rather than the outcomes. What went wrong, and how should the metrics be used?

An organisation adopts the four DORA metrics and delivery does not improve. What are the metrics for, and how are they commonly misused?

Etsy released StatsD in 2011 alongside a blog post titled "Measure Anything, Measure Everything". The client sends UDP packets and does not care whether anything is listening. What problem forced that design, and what does it have to do with deploying many times a day?