Page 34 - Cloud Essentials
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As mentioned, essential services such as emergency, health, law
enforcement, or the military may not be suitable cloud customers. Cloud
providers provide service level agreements (SLAs) to their clients. SLAs
guarantee clients a certain level of service and uptime, but this may not be
acceptable to the essential services listed earlier.
CERTIFICATION OBJECTIVE 1.07
Cloud Service Categories
Cloud usage models have evolved over time as a result of user needs. What
follows are the three most common cloud service categories, also listed in
Figure 1-8.
FIGURE 1-8 Cloud computing models
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