Which personas can a Cisco ISE node assume?
Cisco Identity Services Engine (ISE) is a network security solution that provides centralized policy management and access control for devices and users connecting to a network. ISE can be deployed as a single node or as a distributed deployment with multiple nodes. In a distributed deployment, each node assumes one or more personas to perform specific functions.
The personas that a Cisco ISE node can assume are as follows:
Administration Persona: This persona provides the administrative interface for configuring and managing the Cisco ISE deployment. The Administration persona is responsible for managing the user interface, the database, and the system configuration.
Policy Service Persona: This persona is responsible for enforcing access policies and managing network access control. The Policy Service persona communicates with network devices, such as switches and routers, to enforce policies based on user and device attributes.
Monitoring Persona: This persona provides real-time monitoring and reporting capabilities for the Cisco ISE deployment. The Monitoring persona collects and analyzes data from various sources, such as network devices, and provides reports on network activity and security events.
Inline Posture Persona: This persona is responsible for performing endpoint posture assessments on devices that connect to the network. The Inline Posture persona checks the compliance of devices with security policies before allowing them to access the network.
pxGrid Persona: This persona provides integration with other security systems through the Cisco Platform Exchange Grid (pxGrid). The pxGrid persona allows Cisco ISE to exchange information with other security systems, such as threat detection systems and security information and event management (SIEM) systems.
Based on the above explanation, the correct answer to the question is option D: administration, policy service, and gatekeeping. The ISE node can assume the administration persona for system management, the policy service persona for enforcing access policies, and the gatekeeping persona for providing authentication and authorization services. The monitoring and Inline Posture personas are optional and may be deployed separately if needed.