Which NDB HA control plane VM is upgraded first during an NDB upgrade?
During an NDB upgrade, the upgrade process follows a specific order to maintain stability and HA. The Leader NDB API Server is upgraded first. This server coordinates API requests and ensures the control plane remains operational. Upgrading the leader first minimizes disruption, as subsequent components (e.g., other API servers, HAProxy) rely on its leadership role. Once the leader is upgraded, the remaining NDB HA control plane VMs (e.g., follower API servers, HAProxy) are updated in sequence.
Other options are incorrect:
A . NDB Server: Refers to the main NDB instance, not upgraded first.
C . Leader HAProxy: Upgraded after API servers to maintain load balancing.
D . NDB Agent VMs: Upgraded last, as they are client-side components.
Thus, the verified answer is B, reflecting the upgrade sequence.
Official Nutanix Database Automation Reference:
Nutanix Database Management & Automation (NDMA) course, Module 2: Deploying and Configuring an NDB Solution, Lesson 2.4: Updating NDB.
Nutanix Certified Professional - Database Automation (NCP-DB) v6.5 Knowledge Objectives, Section 2: Deploy and Configure an NDB Solution, Objective 2.3: Perform NDB Updates (applicable to v6.10).
Nutanix NDB Administration Guide: 'NDB Upgrade Process' section.
An NDB environment has been deployed with three Nutanix clusters. An administrator has been asked to create a Microsoft SQL Server software profile for each of these clusters.
Which is a requirement to create the above-mentioned profiles?
To create a Microsoft SQL Server software profile for each of the three Nutanix clusters in an NDB environment, a key requirement is that each cluster must host at least one VM with the Microsoft SQL Server database engine installed. NDB uses these VMs to discover, validate, and generate software profiles tailored to the specific SQL Server versions and configurations present on each cluster. This ensures that the profiles are compatible with the cluster's environment and can be used for provisioning or patching.
Option A (Compute profile must be created first on every cluster) is incorrect because compute profiles are optional and not a prerequisite for creating software profiles.
Option B (Enable Multi-cluster capabilities for NDB) is incorrect as multi-cluster support is already implied by the deployment across three clusters, but it's not a specific requirement for profile creation.
Option C (Enable High Availability for the current NDB Service) is incorrect because HA is a separate configuration and not required to create software profiles.
Option D (Each cluster must host a VM with the DB engine) is correct as it aligns with NDB's requirement to have a Reference: VM for profile generation.
This setup ensures accurate and cluster-specific software profile creation.
Nutanix Database Service (NDB) User Guide, Chapter 4: Managing Software Profiles, Section: Creating Software Profiles
Nutanix Certified Professional - Database Automation (NCP-DB) v6.5 Blueprint, Section 4: Manage Database Software Profiles
Which port should be opened to ensure the NDB server, NDB agent, and NDB database agent can communicate with the registered cluster via REST API calls?
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.
An administrator is interested in using profiles to simplify the database provisioning process. The profile needs to include information related to the SQL service startup account, and the NDB worker service account.
Which profile would help the administrator accomplish this task?
The correct answer is A because the Windows Domain profile is the profile that includes information related to the SQL service startup account and the NDB worker service account. A Windows Domain profile is a collection of settings that define how NDB manages Windows-based database servers and databases. It contains the following information:
The domain name and credentials to join the database server VMs to the domain
The SQL service startup account and password to run the SQL Server service on the database server VMs
The NDB worker service account and password to run the NDB Database Agent service on the database server VMs
The SQL Server authentication mode to use for the databases
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