Question 23
Domain 3: Cloud Technology and ServicesWhich of the following Cloud Computing deployment models eliminates the need to run and maintain physical data centers?
Correct answer: D
Explanation
Cloud computing eliminates physical data center maintenance because AWS says it provides “No Upfront Costs for Data Center Maintenance” and “AWS removes the burden of managing physical data centers.” In the public cloud model, services are “fully publicly hosted and managed,” so the provider handles the infrastructure instead of the customer.
Why each option is right or wrong
A. On-premises.
B. IaaS.
C. PaaS.
D. Cloud.
The public cloud model is the one AWS describes as “fully publicly hosted and managed,” which means the provider—not the customer—operates the underlying infrastructure and physical facilities. Under AWS’s cloud model, there are no upfront data center maintenance costs because the service removes the burden of managing physical data centers, unlike private or hybrid deployments where the customer still retains some on-premises infrastructure responsibility.