Selecting a Service Platform - The Practice of Cloud System Administration - page 66

There is a wide palette of choices from which to construct a robust and reliable archi-
tecture for any given service or application. In the next chapter we examine the various
architectures themselves.
Exercises
1. Compare IaaS, PaaS, and SaaS on the basis of cost, configurability, and control.
2. What are the caveats to consider in adopting Software as a Service?
3. List the key advantages of virtual machines.
4. Why might you choose physical over virtual machines?
5. Which factors might make you choose private over public cloud services?
6. Which selection strategy does your current organization use? What are the benefits
and caveats of using this strategy?