What is a core functionality of Amazon Elastic File System (Amazon EFS)?

Amazon Elastic File System (Amazon EFS) is designed to provide scalable shared file storage for use with AWS cloud services and on-premises resources. This functionality allows multiple Amazon EC2 instances to access the same file system concurrently, facilitating use cases such as content management, big data analytics, and serverless applications, among others.

The scalability of EFS is one of its standout features; it automatically adjusts storage capacity as you add or remove files, allowing you to handle growing data needs without manual intervention. It also ensures high availability and durability of data by distributing file data across multiple Availability Zones.

The other options do not align with the primary functionality of EFS. Monitoring capabilities, data loading and ETL processes, and user permissions management relate more to services like Amazon CloudWatch, AWS Glue and IAM respectively, which do not fall under the scope of EFS’s core purpose of providing shared file storage.