Palo Alto Networks Cybersecurity Entry-Level Technician (PCCET) — Question 127

A user is provided access over the internet to an application running on a cloud infrastructure. The servers, databases, and code of that application are hosted and maintained by the vendor.
Which NIST cloud service model is this?

Answer options

• A. IaaS
• B. SaaS
• C. PaaS
• D. CaaS

Correct answer: B

Explanation

The correct answer is B, SaaS (Software as a Service), as it involves the vendor managing the application and its infrastructure while the user accesses it over the internet. IaaS (A) and PaaS (C) focus on providing infrastructure and platform services to users, respectively, rather than complete applications. CaaS (D) is not a standard NIST model and does not apply here.