Friday, June 2, 2017

Private SaaS

A company has a new offering to provide access to their product from a central location rather than clients internally hosting the product on the client network. The product contains sensitive corporate information that should not be accessible from one client to another. This is an example of which of the following?

A. Public SaaS
B. Private SaaS
C. Hybrid IaaS
D. Community IaaS


Correct Answer: B
Section: Network architecture

Explanation:
SaaS stands for Software as a Service. This is a cloud model whereby a service provider provides a software service and makes the service available to customers over the Internet. Examples of Saas include Microsoft Office 365, Microsoft Exchange Online, Microsoft Lync Online etc.
Advantages of Saas include ease of administration: no need to install and configure local servers, no need to configure backups, no need to keep the software patched, no need to worry about system recovery, lower costs: saving on the purchase of server hardware and software; with SaaS, you lease the service paying either monthly or yearly and compatibility by ensuring that all users are using the same version of software.
There are two types of SaaS: public and private. With public Saas, multiple customers (usually companies) share the same servers running the software. With private Saas, the servers running the software are dedicated to a single customer which provides the isolation and extra security required when dealing with sensitive information.

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