Which of the following firewall modes DOES NOT allow for Identity Awareness to be deployed?

Identity Awareness can be deployed in Bridge mode or Route mode:
In Bridge mode it can use an existing subnet with no change to the hosts’ IP addresses.
In Route mode the Security Gateway acts as a router with different subnets connected to its network interfaces.

For redundancy, you can deploy a Security Cluster in Active-Standby (HA) or Active-Active (LS) modes.
Identity awareness supports ClusterXL HA and LS modes.