Final answer:
To address the company's requirements for cloud security and visibility after a datacenter outage, recommending a Cloud Access Security Broker (CASB) solution would be most effective for comprehensive monitoring and management.
Step-by-step explanation:
After a prolonged datacenter outage affecting web-based sales, a company is looking to move its operations to a private cloud solution while ensuring high security and operational visibility. The company's requirements indicate the necessity for comprehensive monitoring and protective measures. One of the most effective recommendations that the security analyst could make in this situation is to implement a Cloud Access Security Broker (CASB). A CASB solution provides the required visibility into cloud-based service usage, manages data in transit effectively, can potentially identify sensitive data like payment card information being sent to the cloud, and enables data availability across different geographic locations. Additionally, by giving administrators a comprehensive view of traffic and trends, CASB fulfills the 'single pane of glass' requirement, streamlining security management and monitoring.