Answer:
Private cloud
Step-by-step explanation:
A Private cloud is another type of cloud computer that delivers same advantages of a public cloud, which include some features like self-service. availability, but passes through an architecture that is proprietary.
The primary function of a private cloud is it is recommended only to achieve the aims of a single or private organisation
From the example given, the method that can be used in meeting the needed requirements of banks is implementing a private cloud
By using the private cloud method, computer resources can be shared in a public cloud, at the same time, it is completely isolated alone from other banks or organisation and using the same service provider or resources of the cloud.
In this situation, this i the best method, he banks need right now. T. Which is exactly what the small bank needs in this situation.