<ol>
<li>Key aspects of any service level agreement between a data center service provider and a consumer? 
<ul>
<li>Data Handling </li>
<li>Uptime</li>
<li>Mean time to recover</li>
<li>Performance
(mnemonic - DUMP the provider if you don't like them)</li>
</ul>
</li>
<li>Service models described by NIST are SaaS, IaaS and PaaS
</li>
<li>True facts about Infrastructure as a Service,
<ul>
<li>Most typical consumers are IT admins,</li>
<li>IaaS offers computing hardware for its consumers</li>
</ul>
</li>
<li>Cloud regions vs Availability zones?
<ul>
<li>Regions represent data center installations from a cloud provider that can be used as options for the consumer resource deployment.</li>
<li>Availability zones are independent locations within a single data center facility.</li>
</ul>
</li>
<li>Utilities provided by the cloud service provider in PaaS,
<ul>
<li>Computing hardware</li>
<li>Operating system</li>
<li>Virtualization layer</li>
<li>Development tools (mnemonic - PaaS gives COViD)</li>
</ul>
</li>
<li>Typical consumers of PaaS are Application Developers.
</li>
<li>Typical consumers of SaaS are Application End users.
</li>
<li>Facts about SaaS,
<ul>
<li>Among all cloud service models, SaaS requires less customization from a consumer standpoint.</li>
<li>SaaS providers may use PaaS resources for development and IaaS resources for production.</li>
</ul>
</li>
</ol>

1. Key aspects of any service level agreement between a _data center service provider_ and a consumer? 
    - Data Handling 
    - Uptime
    - Mean time to recover
    - Performance
(mnemonic - DUMP the provider if you don't like them)

2.  Service models described by NIST are __SaaS, IaaS and PaaS__

3. True facts about Infrastructure as a Service,
    - Most typical consumers are IT admins,
    - IaaS offers computing hardware for its consumers

4. Cloud regions vs Availability zones?
    - __Regions__ represent data center installations from a cloud provider that can be used as options for the consumer resource deployment.
    - __Availability__ zones are independent locations within a single data center facility.
 
5. Utilities provided by the cloud service provider in PaaS,
   - Computing hardware
   - Operating system
   - Virtualization layer
   - Development tools (mnemonic - PaaS gives COViD)

6. Typical consumers of PaaS are _Application Developers_.

7. Typical consumers of SaaS are _Application End users_.

8. Facts about SaaS,
    - Among all cloud service models, SaaS requires less customization from a consumer standpoint.
    - SaaS providers may use PaaS resources for development and IaaS resources for production.

Mushtaq's blog

Mushtaq's blog

Cloud Shapes, Service Models - 2

a CCNA Cloud CLDFND 210-451 summary