The CLISH command to change the default Gaia WebUI Portal port number is set web ssl-port <new port number>. This command will change the port that the WebUI listens on for HTTPS connections. After changing the port, you need to save the configuration with save config and verify that the change was applied with show web ssl-port. You also need to update the Main URL in the Platform Portal section of the gateway object in SmartConsole and install the policy.

Explanation
The Log "Views" tab shows the details of a selected log when SmartEvent is correlating events. You can select a log from the Logs tab and click on the Views tab to see more information about the log, such as source, destination, service, action, blade, rule number, etc. You can also customize the columns and filters in the Views tab to display only the relevant fields for your analysis. References: [SmartEvent User Guide]

Explanation
The statement that only cluster members running on the same OS platform can be synchronized is false.
Cluster members can be synchronized even if they run on different OS platforms, as long as they have the same Check Point version and hotfixes installed. The other statements are true. The state of connections using resources is maintained in a Security Server, so their connections cannot be synchronized. In the case of a failover, accounting information on the failed member may be lost despite a properly working synchronization. Client Authentication or Session Authentication connections through a cluster member will be lost if the cluster member fails. References: R81 ClusterXL Administration Guide, page 9-10; [R81 Security Gateway Architecture], page 23

Explanation
In order for changes made to policy to be enforced by a Security Gateway, an administrator must perform the action of installing policy. Installing policy is the process of transferring the policy package from the Security Management Server to the Security Gateway. Publishing changes is the process of saving changes to the database and making them available to other administrators. Saving changes is the process of saving changes to a session without publishing them2. References: Check Point R81 Security Management Guide