CompTIA Cloud Essentials+ (CLO-002)Business Principles of Cloud EnvironmentsMedium
A cloud provider offers a Service Level Agreement (SLA) for a database service with a guaranteed uptime of 99.9%. If a month has 30 days, what is the maximum allowable downtime in minutes for the database service in that month?
- A4.32 minutes
- B28.8 minutes
- C14.4 minutes
- D43.2 minutes
Show answer & explanationAnswer & explanation
Correct answer: D. 43.2 minutes
First, calculate the total minutes in a 30-day month: 30 days * 24 hours/day * 60 minutes/hour = 43,200 minutes. An uptime of 99.9% means a downtime of 0.1%. So, 0.1% of 43,200 minutes = 0.001 * 43,200 = 43.2 minutes.
Why the other options are wrong
- A. Incorrect calculation; this might be 99.99% uptime.
- B. Incorrect calculation; this might be 99.93% uptime.
- C. Incorrect calculation; this might be 99.96% uptime or a miscalculation of 0.033%.
SLA Downtime Calculation
Determining the maximum permissible outage duration based on a given uptime percentage in a Service Level Agreement (SLA).
- Total time = Days * Hours/day * Minutes/hour.
- Downtime percentage = 100% - Uptime %.
- Maximum downtime = Total time * Downtime percentage.
Memory trick: Total minutes, then percentage of downtime.