CompTIA Cloud Essentials+ (CLO-002)Business Principles of Cloud EnvironmentsMedium
A cloud provider offers a database service with a guaranteed uptime of 99.9% per month. If a customer experiences 10 minutes of downtime in a particular month, which has 30 days, what is the actual uptime percentage for that month?
- A99.96%
- B99.97%
- C99.99%
- D99.98%
Show answer & explanationAnswer & explanation
Correct answer: B. 99.97%
First, calculate total minutes in the month: 30 days * 24 hours/day * 60 minutes/hour = 43,200 minutes. Then, subtract the downtime: 43,200 - 10 = 43,190 minutes of uptime. Finally, calculate the uptime percentage: (43,190 / 43,200) * 100 = 99.97685%, which rounds to 99.97%.
Why the other options are wrong
- A. This would imply more downtime.
- C. This would imply less downtime.
- D. This would imply slightly less downtime.
SLA Downtime Calculation
Calculating the actual uptime percentage based on total time and recorded downtime within a service level agreement period.
- Total time = days * hours * minutes
- Uptime = total time - downtime
- Uptime % = (uptime / total time) * 100
Memory trick: To find uptime, first find total time, then subtract the minutes lost, then divide by total time for the percentage.