A customer has several values that need to be used in the body of an email send.
* The data would be stored in a reference data extension, related on SubscriberKey
* There may be one or more records for each subscriber
* The audience is generally over 1 million subscribers
* The content is time sensitive and should be sent as quickly as possible
* The customer is not using "Catch and release" sending
* The reference data extension contains 25 columns
What method should be used

Northern Trail Outfitters (NTO) is launching a new campaign, driving it to redesign its data structure. NTO needs to change the cardinality between two data extensions inside Contact Builder.
What are two consequences of this change? Choose 2 answers

What are data extension data retention policies?

A publishing company has presented the following:
* A need to send renewal reminders to customers whose subscriptions expire in 15 days and 7 days.
* A campaign needs to be created and managed by a general marketing user who will not have administrative rights and who is not technical.
* The customers' expiration date is included in the data file.
What component should the customers' solution include? (Choose three.)

A customer provides a file containing only new and updated subscriber records exported from its marketing database.
* The file will be uploaded to the customer's Enhanced FTP automatically at 3 a.m. daily.
* The customer requires that the import completes prior to 4 a.m.
* On average, the file will contain about two million rows of data each day.
Based on the customer's requirements and recommended best practices, how should the daily file be imported?