Which will appear on your pipeline report?

The Self Service Portal and Customer Portal are the same technology?

Which feature effectively allows you to "lock" the converted amount on closed opportunities?

The sales operations team ta Universal Containers purchase a list of shipping companies they would like to be imported into the Salesforce org ... import Wizard. Some companies on the list may already be customers.
Which fields should administrator use to prevent duplicates when importing these Account records?

If a Report is run which returns 20,000 records then: