CompTIA A+ Core 1 (220-1001) — Question 343

Which of the following cloud computing concepts is used to describe online providers that serve multiple clients with scalable services, such as access to a large number of CPUs and memory from multiple sources?

Answer options

• A. Rapid elasticity
• B. Measured service
• C. Cloud file-storage service
• D. Resource pooling

Correct answer: D

Explanation

The correct answer is D, Resource pooling, which refers to the model where multiple clients share the same physical resources, allowing for scalability. Options A and B describe other cloud characteristics, while C specifically refers to a type of service rather than the concept of resource sharing.