CompTIA Security+ Certification SY0-601: The Total Course - Nmap Lab

The video tutorial provides a comprehensive guide on using Nmap, a popular network scanning tool, for reconnaissance. It begins with setting up a virtual machine and starting the SSH service on Kali Linux. The tutorial then demonstrates how to verify the SSH service using the netstat command. It proceeds to start and verify the NTP service, again using netstat. The tutorial concludes with running Nmap scans to perform TCP and UDP scans, and OS fingerprinting, highlighting the detection of services like SSH and NTP on specific ports.

What is the primary purpose of using Nmap in network scanning?

• To manage user accounts

• To encrypt network traffic

• To discover network services and hosts

• To create a virtual machine

Which command is used to check if SSH is listening on port 22?

• netstat -an | grep 22

• nmap -p 22

• service ssh status

• sudo start ssh

What does the netstat command help verify in the context of SSH?

• The version of SSH installed

• The IP address of the host

• If SSH is listening on the correct port

• The password for SSH login

Which port is associated with the Network Time Protocol (NTP)?

• 443

• 123

• 80

• 22

What does the 'O' option in the nmap command perform?

• Starts a service

• Updates the nmap tool

• Performs OS fingerprinting

• Lists all open ports