Which two statements correctly describe the mandatory requirements to set up a Small Community Network...

The extension, user, and group numbering on each system must be unique to avoid conflicts.

The user and group names on each system must be unique for easy identification.

Combo Cards are required in all systems to ensure compatibility.

The underlying network must be configured as a flat layer 2 subnet for optimal performance.

The total number of users within the Small Community Network must not exceed 500 for efficient management.