Final answer:
The recommended deployment model is a Hybrid Cloud, which allows for storing sensitive data on-premises while utilizing the public cloud for non-sensitive data.
Step-by-step explanation:
The recommended cloud deployment model in this case would be a Hybrid Cloud. A hybrid cloud combines the benefits of public and private clouds, allowing organizations to store sensitive data locally while utilizing the scalability and cost-effectiveness of the public cloud for other data. In this scenario, the customer data with Client Identifying Data (CID) needs to be stored on-premises to comply with data security regulations, while data without CID can be stored on the public cloud.
By adopting a hybrid cloud approach, the global insurance and financial company can ensure that sensitive customer data is securely stored on-premises, minimizing the risk of unauthorized access. At the same time, they can leverage the public cloud for non-sensitive data, reducing infrastructure costs and increasing flexibility.
This cloud deployment model aligns with the organization's objective of bringing down infrastructure costs while meeting relevant international data security regulations.