Exam 220-1101 topic 1 question 20 discussion

A. Rapid elasticity refers to allowing users to automatically request additional space. Provisioning is seamless B. Metered utilization charges users based on periodic usage of storage space, number of API calls, etc monitored by the storage provider. This is the definition provided by Techopedia. C. Shared resources refers to multiple clients using one server provisioned to access their dedicated space on that hardware. Since multiple users are using the CPU, RAM, and hard disk of the server computer, this makes the hardware "Shared" D. High availability refers to a server consistently being accessible by client devices C and D don't make sense. In this case, rapid elasticity is the answer. Rapid elasticity has more to do with the concept the question is referring to and encompasses all parts (automatic, saving money). Metered utilization, although aimed at saving money, is less automatic and requires more client and provider input.

Rapid elasticity refers to the system's ability to handle changes to demand in real time. A system with high elasticity will not experience loss of service or performance if demand suddenly doubles (or triples, or quadruples). Conversely, it may be important for the system to be able to reduce costs when demand is low.

rapid elasticity

A. Rapid elasticity you can add how much you want you can take how much you want ... The word is explained by itself elasticity

A is correct

why is not D >>>?

I will say B

Rapid Elasticity

A is the correct answer

A. is considering migrating to the public cloud so capacity can be added during the peak shopping season and automatically removed when the peak is over

Rapid elasticity is only suitable for a domain whose resource requirements suddenly up and down for a specific time interval. Referring to the question the online retailer wants to migrate to public cloud services during peak season, then wants it to be removed "automatically" when the peak is over. he has a time frame therefore the answer selected is correct.

the answer is b Metered services (also called pay-per-use and consumption-based pricing) are any type of payment structure in which a customer has access to potentially unlimited resources but only pays for what they actually use. Metered services are becoming increasingly common in enterprise IT environments. https://www.techtarget.com/searchcio/definition/metered-services#:~:text=Metered%20services%20(also%20called%20pay,common%20in%20enterprise%20IT%20environments.

Because questions says "retailer wants to save money". I think it should B