What are the different command sources that allow you to communicate with the API server?

In terms of Order Rule Enforcement, when a packet arrives at the gateway, the gateway checks it against the rules in the top Policy Layer, sequentially from top to bottom. Which of the following statements is correct?

To help SmartEvent determine whether events originated internally you must define using the Initial Settings
under General Settings in the Policy Tab. How many options are available to calculate the traffic direction?

There are two R77.30 Security Gateways in the Firewall Cluster. They are named FW_A and FW_B. The cluster is configured to work as HA (High availability) with default cluster configuration. FW_A is configured to have higher priority than FW_B. FW_A was active and processing the traffic in the morning. FW_B was standby. Around 1100 am, its interfaces went down and this caused a failover. FW_B became active. After an hour, FW_A's interface issues were resolved and it became operational.
When it re-joins the cluster, will it become active automatically?

You are the administrator for ABC Corp. You have logged into your R80 Management server. You are making some changes in the Rule Base and notice that rule No.6 has a pencil icon next to it.
What does this mean?