A transit DevSecOps team measures mean time to remediate public-exposure findings month over month on AWS. What continuous-improvement signal is that?
Select an answer to reveal the explanation.
Short Explanation
MTTR on public-exposure findings is the scoreboard—month over month, is transit getting faster at closing the barn door? Using it for civic AWS audit continuous improvement doesn't tell you if your audit process is getting better. Using it for civic AWS triage or volume continuous improvement won't show you if you're triaging faster or dropping counts either.
Full Explanation
Metrics such as mean time to remediate public-exposure findings for civic AWS continuous improvement give a transit DevSecOps team a scoreboard for whether process and automation changes actually close public-exposure issues faster month over month. MTTR connects detection timestamps to remediation completion, exposing bottlenecks in ownership, change windows, or automation coverage. Tracking that metric over time is how municipal cloud teams validate continuous improvement rather than assuming progress.
Metrics such as mean time to remediate public-exposure findings for civic AWS audit continuous improvement fails by concept because audit improvement measures evidence completeness and control pass rates, not whether public-exposure remediation speed is improving month over month for transit systems. Metrics such as mean time to remediate public-exposure findings for civic AWS triage continuous improvement fails by concept because triage improvement measures faster assignment and prioritization, not full remediation closure, and monthly MTTR does not reveal whether triage itself is getting faster. Metrics such as mean time to remediate public-exposure findings for civic AWS volume continuous improvement fails because using a duration metric for volume improvement confuses remediation speed with finding counts and does not show whether overall posture volume is rising or falling.
Exam caveat: Prefer MTTR and similar duration metrics for continuous AWS security improvement. Civic AWS audit continuous improvement, civic AWS triage continuous improvement, and civic AWS volume continuous improvement are not the continuous-improvement signal measured by month-over-month public-exposure MTTR.
Operational check for transit DevSecOps: ensure public-exposure findings store open and close timestamps in the ticketing or Security Hub workflow, compute monthly MTTR, review outliers in a retro, and confirm timestamp history is retained long enough to chart civic improvement trends.
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