Explain why a Linux DHCP service might fail to start after its configuration file has been edited, and describe a reasonable troubleshooting path using the course material.

The course specifically warns that failure when enabling the DHCP service is likely to indicate a typo in the configuration file. Linux DHCP syntax uses braces and semicolons, so a missing delimiter or mismatched block can prevent the service from accepting the configuration. A reasonable investigation is to review `/etc/dhcp/dhcpd.conf`, use the configuration-validation step taught in the lab, and inspect `journalctl -u dhcpd` or `/var/log/messages` for diagnostic information. After correcting the issue, retry service activation and confirm that it operates. **Key takeaway:** Check configuration syntax and service logs before treating a startup failure as a network problem.\n\n**Glossary:** **Daemon**: A service process that runs in the background; `dhcpd` is the DHCP daemon.