What command switch will intiate the port scanning option in netcat?

What Nmap flag is used to sequentially scan ports?

What is the correct command to run Netcat on a server using port 56 that spawns command shell when connected?Select one:a. nc -r 56 -c cmd.exeb. nc -p 56 -p -e shell.exec. nc -L 56 -t -e cmd.exed. nc -port 56 -s cmd.exe

You want to scan a remote host for open ports and the services running on those ports. You also want to scan the host for vulnerabilities. Which Nmap scan type would you use?1.0 MarksTCP ACK scanUDP scanScript scanICMP echo scanTCP SYN scan

You want to scan a host for open ports, but you only want to scan the ports that are not listening on a well-known service. Which Nmap filter should you use?1.0 Marks-sV -sT -F-p--sS

How can netcat be used to specify a specific interface for banner grabbing?Select one:a.By using the "nc [target host] [port] -vv -i [interface]" commandb.By using the "nc [target host] [port] -vv --interface [interface]" commandc.All of the aboved.By using the "nc [target host] [port] -vv -iface [interface]" command