To ensure the NDB server, NDB agent, and NDB database agent can communicate with the registered
cluster via REST API calls, port 2009 must be opened. This port is used by NDB components to
facilitate RESTful communication with the Nutanix cluster (e.g., Prism Element or Prism Central) for
operations such as provisioning, monitoring, and management. Proper firewall configuration to
allow traffic on this port is a prerequisite for NDB’s integration with the cluster.
Other options are incorrect:
B . 3205: Not a standard NDB port; used for other Nutanix services.
C . 3260: Associated with iSCSI, not REST API communication.
D . 9440: Used for Prism Element’s HTTPS management interface, not NDB-specific REST calls.
Thus, the verified answer is A, reflecting NDB’s REST API requirements.
Official Nutanix Database Automation Reference:
Nutanix Database Management & Automation (NDMA) course, Module 2: Deploying and Configuring
an NDB Solution, Lesson 2.1: Network and Port Requirements.
Nutanix Certified Professional - Database Automation (NCP-DB) v6.5 Knowledge Objectives, Section
2: Deploy and Configure an NDB Solution, Objective 2.1: Prepare Hosts (applicable to v6.10).
Nutanix NDB Installation Guide: "Network Ports and Protocols" section, specifying port 2009.
