You administer a cloud service. You plan to host two web applications named contosoweb and
contosowebsupport. You need to ensure that you can host both applications and qualify for the
Azure Service Level Agreement. You want to achieve this goal while minimizing costs. How should
you host both applications?

A.
in different web roles with two instances in each web role

B.
in the same web role with two instances

C.
in different web roles with one instance in each web role

D.
in the same web role with one instance

Explanation:
A cloud service must have at least two instances of every role to qualify for the Azure Service Level
Agreement, which guarantees external connectivity to your Internet-facing roles at least 99.95
percent of the time.
http://azure.microsoft.com/en-us/documentation/articles/cloud-services-what-is/