Comprehensive and Detailed Explanation From Exact Extract:
Embracing failure—through practices such as blameless postmortems, chaos engineering, and proactive detection—enables organizations to improve their incident response performance. This directly improves:
MTTD (Mean Time to Detect)
MTTR (Mean Time to Recover)
The Site Reliability Engineering Book, chapter “Postmortem Culture,” states:
“By examining failures without blame and learning from them, organizations improve their ability to detect issues faster and recover more quickly.”
Similarly, in the SRE Workbook, section on incident response:
“Learning from incidents is essential to reducing time to detection and time to mitigation.”
Why the other options are incorrect:
A MTBSI (Mean Time Between System Incidents) is influenced by architecture and testing, not directly by embracing failure.
B These are DORA metrics — important, but not primarily tied to failure-embracing practices.
C Too vague and not a standard SRE metric pair.
Thus, D is the correct answer.
[References:, Site Reliability Engineering Book, “Postmortem Culture”, SRE Workbook, “Incident Response”, ]