What is packet sniffing used for?

Related questions

1. What does Tcpdump mean?
2. What are the 4 parts of a packet?
3. What is tcpdump and why it is used?
4. How does packet capture work?
5. What does packet capture do?
6. What is the difference between Wireshark and tcpdump?
7. What does a packet sniffer do?
8. What is the purpose of a sniffer?
9. How do I open a tcpdump file in Wireshark?
10. Does Wireshark install require a reboot?

Tags

1. #access
2. #sniffers
3. #software
4. #traffic
5. #intercepting
6. #network
7. #computer
8. #wired
9. #wireless
10. #interface
11. #logging
12. #sniffing
13. #packet