What permission is required to enable the loading of leads?

UC wants to prevent sales user to modify certain opportunity fields when the sales stage has reached Negotiation/Review. However sales directors must able to edit these fields in case last minute updates are required. Which solution should a consultant recommended?

Which Lightning Service Console feature should be used to enable Service Reps to send emails with attachments to customers based on the Case details?

Universal Containers wants to deploy the Service Cloud to its contact centers located across North America,
Europe, and Asia. The company wants standardized contact center processes and reporting implemented in its
centers worldwide.
Which approach should a consultant recommend in this scenario?

What type of report would you use to summarize data across two axis (like a pivot table in excel)?