CV0-003 · Question #233
A new application with availability SLA requirements of 99.99% has been deployed in a cloud. For a test spanning a month, which of the following unavailability times would mean the test was…
The correct answer is A. 1 minute B. 4 minutes. A 99.99% SLA over 30 days permits a maximum of approximately 4.32 minutes of downtime, so only unavailability times at or below this threshold indicate a passing test.
Question
A new application with availability SLA requirements of 99.99% has been deployed in a cloud. For a test spanning a month, which of the following unavailability times would mean the test was successful? (Select TWO).
Options
- A1 minute
- B4 minutes
- C10 minutes
- D30 minutes
- E60 minutes
How the community answered
(22 responses)- A55% (12)
- C5% (1)
- D14% (3)
- E27% (6)
Why each option
A 99.99% SLA over 30 days permits a maximum of approximately 4.32 minutes of downtime, so only unavailability times at or below this threshold indicate a passing test.
1 minute of downtime is well below the 4.32-minute maximum (0.0001 x 43,200 minutes in 30 days), so the SLA target is met and the test passes.
4 minutes of downtime is within the 4.32-minute allowable threshold for a 99.99% SLA over a 30-day period, so the SLA target is met and the test passes.
10 minutes of downtime exceeds the 4.32-minute maximum allowed by a 99.99% SLA over 30 days, so the SLA target is not met.
30 minutes of downtime is approximately seven times the 4.32-minute maximum allowed by a 99.99% SLA over 30 days, so the SLA target is not met.
60 minutes of downtime is approximately fourteen times the 4.32-minute maximum allowed by a 99.99% SLA over 30 days, so the SLA target is not met.
Concept tested: Cloud availability SLA calculation over a monthly period
Source: https://learn.microsoft.com/en-us/azure/reliability/availability-service-by-category
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