Kaira's company recently switched to a new calendaring system provided by a vendor. Kaira and other users connect to the system, hosted at the vendor's site, using a web browser. Which service delivery model is Kaira's company using?A. Platform as a Service (PaaS)B. SaaS (SaaS)C. Communications as a Service (CaaS)D. Infrastructure as a Service (IaaS)

Kaira’s company is using Software as a Service to access their new calendaring system that has been hosted by a 3rd party vendor over the web. It is the work of the SaaS to host specific applications and to deliver these applications to customers over the cloud. With SaaS, Kaira’s company does not need to install their calendaring software on their PCs. Every useful thing they want from their calendaring system can easily be accessed over the internet. All the company will need are personalized accounts with usernames and passwords for their employees to access.

The other different types of Cloud Computing services include;

PaaS: A set of tools and services designed to make coding and deploying those applications quick and efficient.
IaaS: hardware and software that powers it all – servers, storage, networks, and operating systems.

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