What does an NDB compute profile contain?
Answer(s): A
An NDB compute profile defines the CPU and memory resources for the database server VMs that are provisioned using NDB. It does not include any information about the network, domain, or software of the database server VMs. Those are specified in separate profiles, such as network profile, domain profile, and software profile.
Nutanix Support & Insights, section "NDB Compute"
An administrator enables NDB Multi-Cluster on Cluster
Answer(s): C
NDB Multi-Cluster is a feature that allows multiple Nutanix clusters to share a common NDB service for database management and automation. NDB service consists of two components: NDB Server and NDB Agent. NDB Server is the central component that provides the web UI, REST API, and database orchestration logic. NDB Agent is the component that runs on each Nutanix cluster and communicates with the NDB Server to perform database operations. When NDB Multi-Cluster is enabled on Cluster A, it becomes the primary cluster that hosts the NDB Server VM. Cluster B, which is registered with NDB, becomes a secondary cluster that hosts only the NDB Agent VM. Therefore, Cluster A has both NDB Server and NDB Agent, while Cluster B has only NDB Agent. This configuration allows Cluster B to leverage the NDB service running on Cluster A for database management and automation.
Nutanix Database Automation (NCP-DB) Course Details, Section 3.1: NDB Multi-Cluster Overview Nutanix Database Automation (NCP-DB) Certification Details, Objective 3.1: Configure NDB Multi- ClusterNutanix Database Automation (NCP-DB) YouTube Playlist, Video 3.1: NDB Multi-Cluster Overview
What is the first step to install NDB on a Nutanix AHV cluster?
Answer(s): B
To install NDB on a Nutanix AHV cluster, you need to download the QCOW2 image file of NDB from the Nutanix Support Portal and upload it to Prism Element. This image file contains the NDB software and the CentOS operating system. After uploading the image, you need to create a VM from the image and configure the network settings. Then, you need to register the NDB VM with Prism Central and enable the NDB service in the settings menu.
Nutanix Support & Insights, Professional Services: NDB Database Cloning
An administrator needs to take multiple snapshots per day and retain them for one week. How should the administrator define and schedule the SLA?
Answer(s): D
The correct answer is D because it matches the requirement of taking multiple snapshots per day and retaining them for one week. Option A is incorrect because it only takes one snapshot per day, which is not enough for the administrator's need. Option B is incorrect because it only retains the snapshots for one week, which means the older snapshots will be deleted after seven days. Option C is incorrect because it only takes two snapshots per week, which is not frequent enough for the administrator's need.
The following sources provide more information about the SLA retention policies and how to create and modify them in NDB:Nutanix Database Management & Automation (NDMA) course, Module 4: Protecting DatabasesUsing Time Machine, Lesson 4.1: Creating and Modifying SLA Retention Policies Nutanix Certified Professional - Database Automation (NCP-DB) v6.5, Knowledge Objectives, Section 5 - Protect NDB-managed Databases Using Time MachineNutanix Database Service (NDB) User Guide, Chapter 6: Protecting Databases Using Time Machine, Section 6.1: Creating and Modifying SLA Retention Policies
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