正解:C
The Nmap scan command given will scan all the hosts in the 192.168.0.0/24 subnet, except for the one with the IP address 192.168.0.101. The subnet has 256 possible hosts, but one of them is excluded, so the total number of servers that Nmap will attempt to scan is 255. References:
* Nmap Commands - 17 Basic Commands for Linux Network, Section: Scan Multiple Hosts, Subsection:
Excluding Hosts from Search
* Nmap Cheat Sheet 2023: All the Commands and More, Section: Target Specification, Subsection: - exclude