The default Distribution mode is Auto-topology. This mode automatically configures the distribution of traffic across available resources, making it optimal for maintaining balanced and efficient network operations without manual intervention.

A Dual-Site cluster can be compared to Active-Standby or VSLS configurations. In such a setup, there are typically multiple sites where one site is actively handling the traffic while the other site can serve as a standby or run in a less active configuration like VSLS (Virtual System Load Sharing), where load sharing can occur but with backup capabilities.

The correct command to restart the Orchestrator service only is 'orchd restart'. The other options are either incorrect or do not specifically target the Orchestrator service. The command 'service orchestrator restart' does not match the known valid commands for restarting the service.

The Orchestrator in Check Point's security management architecture is typically defined as a Check Point host in the SmartConsole. This allows it to manage and coordinate other security components within the network effectively.

In a Dual-Site configuration, the maximum amount of appliances within a Security group is 28. This means there are 14 appliances per site, resulting in a total of 28 appliances when both sites are considered together.