The [-n] option in the Checkpoint firewall log syntax is used to speed up the process by not performing DNS resolution of the IP addresses in the log files. When this option is used, the log file will display IP addresses instead of resolving them to hostnames, which can significantly reduce the time taken to process the logs, especially when dealing with large volumes of data.

References: This information is consistent with the Check Point Software documentation, which details the use of the fw log command and its various options for managing and viewing firewall logs1. Understanding these options is crucial for a SOC Analyst, as it allows for more efficient monitoring and analysis of network traffic and potential security events.