If your company's fiscal year begins on February 1st and contains the 12 gregorian months, do you need to enable custom fiscal years?

What will happen when a user attempts to log In to Salesforce from an IP address that is outside the login IP range on the user's profile but within the organization -wide trusted IP range?

If I'm looking at a detail page, do I know what record type it is?

Which of the following is true about salesforce?

Ursa Major Solar's administrator needs to create a custom field to track a specific tier 2 support user...
What is the appropriate data type to utilize when creating this custom field?