Google Cloud Professional Cloud DevOps Engineer — Question 166

You need to define SLOs for a high-traffic web application. Customers are currently happy with the application performance and availability. Based on current measurement, the 90th percentile of latency is 160 ms and the 95th percentile of latency is 300 ms over a 28-day window. What latency SLO should you publish?

Answer options

• A. 90th percentile - 150 ms 95th percentile - 290 ms
• B. 90th percentile - 160 ms 95th percentile - 300 ms
• C. 90th percentile - 190 ms 95th percentile - 330 ms
• D. 90th percentile - 300 ms 95th percentile - 450 ms

Correct answer: C

Explanation

The correct answer is C because it sets realistic latency goals that are slightly above the current measurements while still being achievable. Options A and B are too conservative as they do not challenge the performance metrics, while D sets levels that are unreasonably high compared to current performance.