ABS Bank has provision of accommodating only 100 bank accounts of Customers. The entire bank operations are being managed by the bank using the cloud services provided by the vendor.

The number of account holders who wish to open their account in ABS bank suddenly increased to 150. As the bank can only accommodate 100 bank accounts, therefore, the problem of managing extra 50 account lies. 

Suggest how the sudden increase of 50 bank accounts will be managed by the ABS bank. Which cloud deployment models were used by the ABS bank prior to increase in bank accounts and after the bank accounts were suddenly increased.

Discuss the features of each cloud deployment models in detail and also how ABS bank will manage these deployment models.