CompTIA Cloud Essentials+ (CLO-002)Business Principles of Cloud EnvironmentsMedium
A cloud provider guarantees 99.95% uptime for a critical database service per month. How many minutes of downtime, rounded to the nearest minute, is the provider allowed to have per month before breaching the SLA?
- A0 minutes
- B43 minutes
- C22 minutes
- D60 minutes
Show answer & explanationAnswer & explanation
Correct answer: C. 22 minutes
A month has approximately 30 days * 24 hours/day * 60 minutes/hour = 43,200 minutes. With 99.95% uptime, the allowed downtime is 100% - 99.95% = 0.05%. So, 0.05% of 43,200 minutes = 0.0005 * 43,200 = 21.6 minutes. Rounded to the nearest minute, this is 22 minutes.
Why the other options are wrong
- A. This would mean 100% uptime, which is not the guaranteed percentage.
- B. This would be the downtime for 99.9% uptime (0.1% downtime).
- D. This would be an excessive amount of downtime for the given SLA.
SLA Downtime Calculation
Determining the maximum allowed outage duration based on a guaranteed uptime percentage over a specific period.
- Uptime is expressed as a percentage (e.g., 99.9%).
- Downtime is 100% minus the uptime percentage.
- Calculated by multiplying the total time in the period by the downtime percentage.
Memory trick: Percent up, then time down, to keep the service sound.