Final answer:
The Microsoft tool that requires the tenant admin to approve a request before access to the datacenter is granted to Microsoft engineers is Customer Lockbox. This feature enhances the security and control of customer data.
Step-by-step explanation:
The Microsoft tool that requires the tenant admin to approve a request before access to the datacenter is granted to Microsoft engineers is Customer Lockbox. Customer Lockbox is a feature of the Office 365 service that gives customers explicit control over access to their content stored in the datacenters, by allowing them to approve or reject requests for access from Microsoft engineers.
For example, if a Microsoft engineer needs to access a customer's datacenter to perform a support task, a request will be sent to the tenant admin. The tenant admin can then review the request, the reason for access, and determine if it should be approved or rejected.
Customer Lockbox enhances the security and control of customer data, ensuring that the customer maintains control over who can access their data and when.