QUESTION N° 2

You have an Azure application that uses the services shown in the following table. How should you calculate the composite SLA for the application?

Answers:
A. 0.999 * 0.9999 = 0.9989001 = 99.89001%
B. 0.999 / 0.9999 = 0.9991 = 99.91%
C. Max(0.999, 0.9999) = 0.9999 = 99.99%
D. Min(0.999, 0.9999) = 0.999 = 99.9%

CHOICES : A B C D

CORRECT ANSWER : A

Explanation:

Composite SLAs involve multiple services supporting an application, each with differing levels of availability. For example, consider an AppService web app that writes to Azure SQL Database. At the time of this writing, these Azure services have the following SLAs:
Reference: https://docs.microsoft.com/en-us/azure/architecture/reliability/requirements#understand-service-level-agreements