You want to upgrade a cluster with two members to VPN-1 NGX. The SmartCenter Server and both members are version VPN-1/Firewall-1 NG FP3, with the latest Hotfix. What is the correct upgrade procedure?
1. Change the version, in the General Properties of the gateway-cluster object.
2. Upgrade the SmartCenter Server, and reboot after upgrade.
3. Run cpstop on one member, while leaving the other member running. Upgrade one member at a time, and reboot after upgrade.
4. Reinstall the Security Policy.
A.
3, 2, 1, 4
B.
2, 4, 3, 1
C.
1, 3, 2, 4
D.
2, 3, 1, 4
E.
1, 2, 3, 4