What is the recommended number of physical network interfaces in a Mobile Access cluster deployment?

You find one of your cluster gateways showing "Down" when you run the "cphaprob stat" command. You then run the "clusterXL_admin up" on the down member but unfortunately the member continues to show down.
What command do you run to determine the cause?

Ken wants to obtain a configuration lock from other administrator on R80 Security Management Server. He can do this via WebUI or via CLI.
Which command should he use in CLI? (Choose the correct answer.)

What is the purpose of extended master key extension/session hash?

Traffic from source 192.168.1.1 is going to www.google.com. The Application Control Blade on the gateway is inspecting the traffic. Assuming acceleration is enabled which path is handling the traffic?