フリー問題

問題文

An organization wants to make its production environments strong enough that more testing can take place there without compromising stability. One of the techniques named for that purpose works by deliberately making things go wrong. Which description does the Body of Knowledge give of that technique?

選択肢

1. The technique deliberately introduces flaws into both the test environments and the production environments and thereby provides an opportunity for examination and together with the blue green deployment it helps to build more exact systems
2. The technique deliberately introduces load into both the test environments and the production environments and thereby provides an opportunity for watching and together with the blue green deployment it helps to build more observable systems
3. The technique deliberately introduces flags into both the test environments and the production environments and thereby provides an opportunity for recovery and together with the blue green deployment it helps to build more tunable systems
4. The technique deliberately introduces chaos into both the test environments and the production environments and thereby provides an opportunity for learning and together with the blue green deployment it helps to build more robust systems