How does PXE booting work?

Related questions

1. What ports does PXE boot use?
2. What is PXE boot Linux?
3. What does start PXE over ipv4 mean?
4. What does PXE boot do?
5. What is PXE boot used for?
6. Why does my computer say no boot device available?
7. What causes Reboot and select proper boot device?
8. How does a PXE server work?
9. How does PXE boot work with DHCP?
10. How do I fix ASUS reboot and select proper boot device?

Tags

1. #broadcast
2. #address
3. #sends
4. #traditionally
5. #slightly
6. #pressing
7. #process
8. #however
9. #replies
10. #states
11. #suggested
12. #picks
13. #server
14. #client
15. #changed
16. #needs
17. #initiates