A system administrator is trying to find out what filesystems are mounted on a Linux system. Which of the following commands can be used to do this?0.5 Marksdfmountlsblkfdisk -l

The command "df", "mount", and "lsblk" can be used to find out what filesystems are mounted on a Linux system.

1. "df": This command stands for "disk filesystem". It is used to get a report of the system's disk space usage. When used without any options, it displays the amount of space used and available on all mounted filesystems.

2. "mount": Without any arguments, this command will display all the filesystems that are currently mounted in the system.

3. "lsblk": This command lists out all the storage blocks, which includes disk partitions and their sizes. It gives you a tree-like hierarchical structure of all the block devices, along with the mount points.

On the other hand, "fdisk -l" command is used to display the partition tables for the specified devices and their sizes, not the mounted filesystems.