What is the command to check the cluster status in CLI expert mode?

To check the cluster status in CLI expert mode, using the command "cphaprob stat" is the correct approach. This command provides essential details regarding the status of the High Availability (HA) cluster in a Check Point environment. It displays the current state of each cluster member, which includes information about whether they are active or standby, as well as their connections and other relevant statistics.

The "cphaprob" command is specifically designed for querying the status of Check Point cluster configuration and is a standard tool for monitoring cluster performance and health. It is particularly useful for troubleshooting and ensuring that the cluster is functioning as expected.

Other commands mentioned might relate to general firewall or cluster functions, but they do not specifically return information about the cluster’s operational state in an HA environment. Therefore, "cphaprob stat" is you should use to gain a clear view of the cluster’s current state and configuration.