Refer to the exhibit.

An engineer configures a new application profile using REST API and receives this error massage. Which method can be used before application profile can be configured?

An engineer is implementing the Cisco ACI fabric and must create two different vPCs from leaf switches A and B. The vPCs are deployed as follows:
* vPC 1 encompasses ports Eth 1 /1 on leaf A and B and connects to server 1.
* vPC 2 encompasses port Eth1/2 on leaf A and B and connects to server 2.
A leaf switch profile listing leaves A and B is already configured Which ACI object must be created to meet these requirements?

Refer to the exhibit. Which backup operation type not include the preserve identities feature?

Refer to the exhibit.

A host with a source address 10.10.10.10 sends traffic to multicast group 239.1.1.1. How do the vPC switches forward the multicast traffic?

An engineer must allow communication between the APIC controller and an OpenStack OpFlex agent. The agent is running on a compute node directly plugged to a Cisco ACI leaf switch. The engineer must enable and extend Infra VLAN on the port facing the compute and extend the Infra VLAN to the host. Which action must be taken to meet these requirements?