Nutanix Updated NCP-DB Exam Questions and Answers by yasir

The correct answer is B because setting VM-Host affinity ensures that the DB Server VMs are not migrated to another host during the LCM upgrade process. This way, the DB Server VMs can continue to serve the database requests without interruption. Option A is incorrect because updating the Nutanix cluster does not prevent the DB Server VMs from being moved to another host. Option C is incorrect because removing the Nutanix cluster from NDB will make the DB Server VMs unmanaged by NDB and lose the benefits of NDB features. Option D is incorrect because unsetting VM-Host affinity will allow the DB Server VMs to be migrated to another host during the LCM upgrade process, which may cause downtime or performance degradation.

References: The following sources provide more information about the LCM upgrades and VM-Host affinity in NDB:

Nutanix Database Management & Automation (NDMA) course, Module 6: Administering an NDB Environment, Lesson 6.3: Performing NDB Software Upgrades

Nutanix Certified Professional - Database Automation (NCP-DB) v6.5, Knowledge Objectives, Section 6 - Administer an NDB Environment

Nutanix Database Service (NDB) User Guide, Chapter 8: Administering an NDB Environment, Section 8.3: Performing NDB Software Upgrades

Nutanix Support & Insights, Your guide to the Upgrades, LCM Design

Nutanix Life Cycle Manager Guide, Chapter 3: Upgrading Software and Firmware, Section 3.2: Preparing for an Upgrade, VM-Host Affinity

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 References

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.

 In the context of Nutanix Database Automation (NCP-DB), a Super Admin has the authority to apply patch profiles. However, if a patch is marked as deprecated, even if it’s published, it cannot be applied. This is because deprecation is a status that indicates the patch is outdated or has been superseded by a newer version, and thus should not be used1. This behavior ensures that only the most up-to-date and secure patches are applied to the system, maintaining the integrity and security of the database environment1.

Nutanix Era is a database management system that provides API endpoints for automation and integration with external applications. These API calls are typically made over HTTPS for security, and the standard ports for HTTPS are 443 and 94401. Please note that the actual ports used can depend on the specific configuration of the Nutanix Era system. It’s always a good idea to check the system’s documentation or consult with the system administrator for the most accurate information.