A marketer has built an automation using Automation Studio to send data from a data extension to the SFTP as a .csv file. The automation includes a data extract and completes successfully, but the file is still not showing up on the SFTP.
Which activity is missing?

Northern Trail Outfitters (NTO) has a promotional email intended to be sent to only its high-value customers. NTO wants to implement additional-guardrails to prevent sending the email to more subscribers than intended.
Which Activity should be configured in Automation Studio to help?

Northern Trail Outfitters (NTO) has subscribers opt-in to its marketing program via email or SMS.
What should NTO configure for its welcome series in Journey Builder to honor the opt-in communication method?

Northern Trail Outfitter (NTO) is warning up a new IP address primarily for a new product line. Initially, NTO wants to move some of its lower-volume transactional sends onto this new IP.
Where should NTO update the IP configured for these sends?

The marketing team wants to split their primary customer data extension into 10 separate segments, to use for future A/B testing score.
Which feature should be used to easily segment the data extension?