An account has Subscriber Key enabled, and will be providing a unique key for each subscriber from an external system. A marketer wants to create a data extension for sending email campaigns.
Which two steps should the marketer take when creating the data extension? Choose 2 answers

A marketing team is creating a new data extension. The data extension configuration is very similar to a data extension that is already In use.
What creation method should the team use to create the new data extension?

What single place in Content Builder would a marketer store CSS used in several Paste HTML Templates?

Northern Trail Outfitters wants to create a segment that will add and update the data in the data extension.
They do not want the data overwritten. If a subscriber no longer meets the filter criteria, they should remain in the segment.
What could be used to segment the data?

In order to import into an data extension using "add" or "update" command what must it contain?