What method can NOT be leveraged to capture Cases in addition to via the Case tab?

UC's support team requires its customers to submit their support inquiries via free form email (Outlook,
Gmail, Yahoo, etc.). Additional requirements are listed below:
Support attachments up to 20MB per inquiry
Over 10,000 inquiries per day
Which solution should a consultant recommend to meet these requirements?

Universal Containers wants to ensure the contracted service level requirements for its clients are being met.
What should be configured to meet this requirement?

Which two advantages does Salesforce provide with the OpenCTI framework? Choose 2 answers

UC wants to provide its 20 million customers with a portal where they can: Submit inquires, Monitor the status
of those inquiries, and View their contact information. To meet these requirements, which type of portal
license would be most appropriate for the customers?