Presently, XYZ payroll and finance functions are successfully outsourced to a SaaS cloud provider. Since leveraging cloud solutions have shown to be viable, XYZ leadership is considering leveraging additional cloud solutions.$$

A$)$ One present pain point for the geographically distributed corporation is maintaining single sign$-$on $($SSO$).$ What cloud$-$based service could provide a solution for a web$-$based environment?

B$)$ The total cost of ownership $($TCO$)$ for XYZ to maintain current in$-$house security services is no longer cost effective. What cloud$-$based subscription model might provide a better alternative?$$

What would the benefits and drawbacks be of using each additional cloud service model?