NTO wants to import a file with column names that do not match the field into a data extension what steps is needed to align the file data to the filed names in the data extension

An email marketing team is setting up a campaign to message customers who register for an event. The registration data is being gathered in another system and will be passed to Marketing Cloud daily, and updates made to the customers' registration information will be reflected in the same file.
How should the import of event registration data be configured?

A customer has a Send Log they are using to track the email addresses that were sent to, date and time of the send, and the name of the email sent for reporting purposes. Per best practice, the customer stores 30 days of data in their Send Log and then archives the data into another data extension that holds data for one year.
Which activity should be used to achieve the backup automatically?

What are the 4 steps to create dynamic content?

What is an Automation Studio activity? (Choose 3)