What is Nmap null scan?

Related questions

1. What type of scan is nmap?
2. What nmap is used for?
3. What is the function of scanner?
4. What is Nmap command?
5. What happens if you get an MRI with metal in your body?
6. How many types of MRI scans are there?
7. What is a FIN scan?
8. What is a scanner used for?
9. What is Zenmap and how does it relate to nmap?
10. What is the function of nmap?

Tags

1. #response
2. #flags
3. #enabled
4. #target
5. #system
6. #method
7. #sending
8. #packets
9. #firewalled
10. #causes
11. #respond
12. #tricking
13. #generate
14. #systems