Page 171 - Cloud Essentials

A and D. Instead of purchasing hardware and software, you

purchase only the cloud IT solutions you use on an ongoing basis.
Provisioning new cloud IT services, such as new virtual servers, is
done very quickly compared to ordering physical server hardware and
then installing an operating system on it.
B and C are incorrect. Cloud solutions are not always less
expensive than in-house solutions; this statement is too general.

Security in the cloud is considered superior to that provided by a
private organization. This is because cloud providers have the
resources and expertise to exercise proper security controls, and they
must pass third-party security audits often.

7. How can cloud computing improve the flexibility of businesses?

A. Easier access by users outside of the organization
B. Rapidly growing and shrinking capacity

C. Faster deployment of applications

D. All of the above
E. None of the above

D. Because public SaaS solutions are already on the Internet, any

user who has been granted access can easily connect. Rapid elasticity
allows businesses to respond to up and down swings in business
activity, which in turn means businesses pay for the cloud services they
use. PaaS allows developers to quickly create and test applications;
this is made possible by software libraries and databases for
developers and the rapid creation of virtual machines.

A, B, C, and E are incorrect. Each listed item allows businesses to
be flexible and to respond to changes in business volume.

8. Cloud computing might not be beneficial for which of the following?

A. Small engineering start-up
B. Email system for the Pentagon

C. Rapidly growing email system
D. Web site of a large newspaper

B. Sensitive email systems, such as that used by the Pentagon,
should be hosted in-house. This allows full control over the
installation and use of the system.

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