CompTIA Linux+ (XK0-005) XK0-005 — Question 128

A systems administrator was tasked with assigning the temporary IP address/netmask 192.168.168.1/255.255.255.255 to the interface eth0 of a Linux server. When adding the address, the following error appears: # ip address add 192.168.168.1/33 dev eth0 Error: any valid prefix is expected rather than "192.168.168.1/33". Based on the command and its output above, which of the following is the cause of the issue?