Page 181 - Cloud Essentials

This means eliminating single points of failure such as storing data on a

single hard disk or single network connections.
A, B, and C are incorrect. IaaS offers computing infrastructure
services over the cloud, and PaaS offers software development
capabilities over the cloud; by themselves neither tolerates failures.
Highly portable means something can be moved from one system to
another with ease; this is not related to high availability.

31. You are evaluating cloud backup offerings from various cloud

providers. What type of cloud service is cloud backup?
A. SaaS

B. IaaS
C. PaaS

D. DaaS

B. IaaS cloud service offerings include virtual servers, cloud
storage, cloud backup, virtual networks, and so on.

A, C, and D are incorrect. SaaS offers end-user software over a
network. PaaS allows developers to easily and quickly create and test
applications. DaaS makes remote virtual desktops available to users
from any device; the processing occurs on the desktop virtualization
server.

32. What is used to automate the provisioning of virtual machines?

A. SaaS

B. Management software
C. PaaS

D. Software libraries

B. Cloud providers have management software, usually web-based,
that is used to automate virtual machine provisioning.
A, C, and D are incorrect. SaaS offers end-user software over a

network. PaaS allows developers to easily and quickly create and test
applications. Software libraries are made available to developers with
PaaS offerings.

33. Which of the following are risks associated with depending on cloud
providers? (Choose two.)

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