What is required to create an NDB Software Profile Version for PostgreSQL?
Answer(s): C
To create an NDB Software Profile Version for PostgreSQL, it is required to have an installer package for the database software. This package forms the basis of the software profile, enabling the deployment and management of PostgreSQL instances.
Nutanix Database Automation documentation, particularly in the area of software profile creation and management for PostgreSQL.
What is the minimum frequency in minutes configurable for NDB Log Catch-up operation?
Answer(s): B
The minimum frequency configurable for the NDB Log Catch-up operation is 15 minutes. This setting determines how frequently the log catch-up process runs, which is crucial for maintaining data integrity and ensuring up-to-date database states.
Nutanix Database Automation documentation, focusing on log management and catch-up operation settings.
Which ports are used by the NDB database agent for API calls?
Answer(s): A
The NDB database agent is a service that runs on each database server VM and communicates with the NDB instance. It uses port 443 for HTTPS API calls and port 9440 for Nutanix cluster API calls. These ports are required to be open on the database server VMs for NDB to function properly.
Nutanix Database Management & Automation (NDMA), page 9; Ports and Protocols Reference Chart | Nutanix Community, section "Nutanix Database Service (NDB)"
How would an administrator enter the NDB command line to change the static IP address on the NDB VM?
To change the static IP address on the NDB VM, an administrator would need to enter the NDB command line using the cerebro_cli command. The cerebro_cli command is used to access the Cerebro service, which is responsible for managing the NDB instance and its components. The cerebro_cli command can be run from the NDB VM or from any other VM that has network connectivity to the NDB VM. The cerebro_cli command has various subcommands and options to perform different tasks, such as changing the IP address, hostname, password, or certificate of the NDB VM. To change the static IP address, the administrator would need to use the cerebro_cli network update subcommand with the appropriate parameters, such as the new IP address, netmask, gateway, and DNS servers. The cerebro_cli network update subcommand also requires the administrator to provide the current password of the NDB VM for authentication. After changing theIP address, the administrator would need to restart the NDB VM for the changes to take effect.
Nutanix Certified Professional - Database Automation (NCP-DB) v6.5, Section 2 - Deploy and Configure an NDB Solution, Objective 2.2: Configure an NDB Instance Nutanix Database Management & Automation (NDMA) Course, Module 3: Nutanix Database Service (NDB) Installation and Configuration, Lesson 3.2: Configuring NDB, Topic: Changing the IP Address of the NDB VMNutanix Database Service (NDB) Command Line Interface Guide, Chapter 2: Cerebro CLI, Section:cerebro_cli network update
Within the NDB GUI, an administrator needs to set the shortest schedule interval possible for a database log catch up.Which value, in minutes, will satisfy this requirement?
The NDB GUI allows an administrator to set the schedule interval for a database log catch up, which is the process of collecting transaction logs periodically from the source databases and storing them in the time machine. The shortest possible value for this interval is 15 minutes, as per the NDB documentation1. This means that the NDB time machine will capture the database logs every 15 minutes and use them for backup, restore, clone, and refresh operations.
Nutanix Database Management & Automation (NDMA), page 29; Nutanix Support & Insights, section "Log Catch-up"
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