An incremental backup only backs up files that have changed since the last backup, whether it was a full or an incremental backup. Therefore, an incremental backup file may require another file to restore data, depending on the sequence of backups. A full backup backs up all files and does not require any other file to restore data.
A snapshot is a point-in-time copy of data that does not depend on other files. A differential backup backs up files that have changed since the last full backup and does not require any other file to restore data.

A misconfigured NIC on the server is the most likely reason for the lack of network connectivity. The output of the ping command shows that the server is unable to reach its default gateway (10.0.0.1) or any other IP address on the network. The output of the ipconfig command shows that the server has a valid IP address (10.0.0.10) and subnet mask (255.255.255.0) but no default gateway configured. This indicates that there is a problem with the NIC settings on the server, such as an incorrect IP address, subnet mask, default gateway, DNS server, etc. A misconfigured NIC can also cause an amber link light on the switch port, which indicates a speed or duplex mismatch between the NIC and the switch.

https://whatis.techtarget.com/definition/recovery-time-objective-RTO

The best way to ensure that there is a more direct relationship between the number of users using the server and the amount of space that might be used is to implement disk quotas. Disk quotas are a feature that allows a server administrator to limit the amount of disk space that each user or group can use on a file server. Disk quotas can help manage storage utilization, prevent disk space exhaustion, and enforce fair usage policies.
Disk quotas can also provide reports and alerts on disk space usage and quota status.