What is true about dynamic dashboards?

A Salesforce Administrator has 7 million records that need to be loaded into Salesforce and wants to do it in one batch. How can the records be uploaded in one batch?

If a user is working in Salesforce when the login hours end, what will happen?

Which of the following can a Case Queue be used for?

Which of the following statements are true about resetting passwords when users get locked out of a Salesforce org that does NOT have single sign-on enabled through an identity service other than Salesforce?