MongoDB Atlas brings the ability for users to no longer concern themselves with day-to-day aspects of system administration, allowing them to focus on data availability and minimal overhead. On Day One, importing data into MongoDB Atlas can be achieved through a simple export and import process using mongodump and mongorestore. The export process involves creating a binary database dump created by mongodump, which is then used with mongorestore to write the data from the binary database dump to a MongoDB instance. This allows users to easily migrate their existing data into Atlas without worrying about system administration tasks.