What types of application and workloads are best suited for amazon EFS?

The best feature of Amazon EFS is its ability to share files between multiple servers even if the data is present only in one server. Thus some applications include:
Media Processing and Entertainment - like Netflix,
Database Backups and Disaster Recovery,
Content Management Service - like online photo editor, text editor or video editor, etc.
Workloads should allow shared accessing, should be scalable, should be persistent.

What is the port number used for SSH connections?

Default port number used for SSH connection is port 22.

What is a port number?

Port numbers are used in TCP/IP networking to differentiate types of networking traffic running over the same IP address.

What is AWS outpost?

It is fully managed by hardware and software.
AWS delivers and install physical racks of server hardware,storage, and networking equipment in your data center.

What built in features does amazon EFS Provide for data protection and disaster recovery?