Northern Trail Outfitters wants to build an abandoned cart journey which includes a Decision Split that evaluates if a customer has made a purchase after they enter the journey. Customer data is stored in a master data extension ans purchase data is stored in a second data extension.
Which two steps should they include to accomplish this journey?

An online retailer would like to utilize Journey Builder interactions for sending post-purchase communications to their customers.
What Contact Entry mode best fits this scenario?

What are two ways Contact builder can alter the data in Data Extensions? (Choose two.)

A retail company's database of record resides at a 3rd-party company that also keeps track of purchase history. That database only updates once a day where new records can be created and merged. The database uses an "Email ID," which is a numeric field that represents both the business unit and email address. The company now wants to be able to send real-time Welcome emails to people (newly registered website users) who provide their email address in exchange for getting 10% off their first order, and ensure this send is connected to "Email ID" in the database.
What key issue should be addressed? Choose 3 answers

Northern Trail Outfitters wants to send a welcome email to Contacts when a Contact record is added as a campaign Member to a 'Loyalty Member' Campaign in Sales Cloud.
Which method should they use to send the email from Marketing Cloud?