Which of the following is NOT one of the five major areas of a cloud provider's activities?
AService deployment
BService orchestration
CService arbitrage
DCloud service management
Answer & Solution
Correct answer: C. Service arbitrage
1. Section 2.3 closes by naming the five areas: "a cloud provider conducts its activities in the areas of service deployment, service orchestration, cloud service management, security, and privacy".
2. Deployment, orchestration and service management are three of those five, so none of them can be the answer. Security and privacy are the remaining two.
3. Service arbitrage is not a provider activity at all. It is one of the three cloud *broker* categories set out in section 2.5.
4. The confusion is easy to fall into because both lists use the word *service*, and because section 3 expands the provider's five areas into subsections that sit right next to the broker discussion.
5. A quick check: the provider's five areas each get their own subsection in section 3, from 3.1 through 3.5. Arbitrage appears in none of them.
_Source: NIST SP 500-292 "NIST Cloud Computing Reference Architecture" (Sept 2011), section 2.3 "Cloud Provider" and section 2.5 "Cloud Broker"_
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