Exam CV0-003 topic 1 question 261 discussion

you can reduce monthly cost since you no longer have to pay rent and maintain a large data center and second you can always downscale or upscale and pay as you use the services you need.

A public cloud offers various advantages, including: D. Pay as you use → Public cloud providers use a pay-per-use model, meaning organizations only pay for the resources they consume, reducing upfront costs. E. Availability of self-service → Public clouds allow users to provision, manage, and scale resources on demand through self-service portals, reducing dependency on IT teams.

B and D are some of the main reasons for using the cloud and saving $$.

DE is right. B is not necessarily true. The primary conceit of the cloud is trading CAPEX capital expenditure (large down payment) for a datacenter for the increased OPEX (operational expenditure => monthly) of renting out someone else's data center. In a large enterprise that can gain some efficiencies of scale, and has low rate of change, a public cloud is relatively expensive compared to having your own datacenter and IT staff.

The monthly costs can vary depending on resource consumption. It is not a guaranteed reduction in monthly costs.

Given answer is correct. As per Microsoft..."Advantages of public clouds: Lower costs—no need to purchase hardware or software, and you pay only for the service you use". https://azure.microsoft.com/en-us/resources/cloud-computing-dictionary/what-are-private-public-hybrid-clouds/#public-cloud

I would think DE would be the more fitting answer here. Pay-as-you-go model as well as availability of self-service. Reduced monthly cost is not an absolute.