An engineer must integrate Layer 4 to Layer 7 services within Cisco ACI Fabric. The main requirement is to have a single point of configuration for network elements and firewall policies. Which action

Network policy mode for service graphs is a legacy or less integrated approach compared to service policy mode, and it does not offer the same level of centralized, policy-driven automation and single point of configuration for L4-7 services within ACI.

Deploying firewalls in routed mode with PBR is a specific deployment method for a firewall, but it does not address the core ACI requirement of a single point of configuration and automated policy integration through service graphs.

Deploying firewalls in transparent mode is a specific deployment method for a firewall, but it does not address the core ACI requirement of a single point of configuration and automated policy integration through service graphs.

In Cisco ACI, the service graph model in service policy mode provides a centralized, policy-driven approach to integrate Layer 4-7 services. This mode allows for the definition and automation of service device deployments (like firewalls) and their associated policies within the ACI fabric, ensuring a single point of configuration for both network elements and security policies.