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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Register and Protect Databases | 21% | - Manage Database Snapshots - Register Existing Databases - Describe Time Machine Concepts - Describe Data Access Management |
| Topic 2: Monitor and Operate an NDB Solution | 24% | - Manage NDB High Availability - Manage NDB Patches - Monitor NDB Environments - Manage NDB Profiles - Manage NDB Alerts |
| Topic 3: NDB Fundamentals | 22% | - Describe NDB Concepts - Describe NDB Architecture and Components - Identify NDB Key Features |
| Topic 4: Deploy and Configure an NDB Solution | 11% | - Identify Deployment Prerequisites and Requirements - Describe the Deployment Process - Configure NDB |
| Topic 5: Provision and Clone Databases | 22% | - Manage Databases - Manage Database Logs - Describe Masking and Deleting Operations - Describe Provisioning Workflows - Manage Database Clones |
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NEW QUESTION # 189
An administrator is managing a high availability (HA) NDB environment and has been tasked to configure custom SSL certificates. Which server instances must be updated?
Answer: A
Explanation:
In a high availability (HA) Nutanix Database Service (NDB) environment, custom SSL certificates are used to secure communication between clients (e.g., NDB GUI, API calls) and the NDB control plane. The HA Proxy VMs serve as the entry point for all external traffic, load balancing requests across the NDB API server VMs and providing secure SSL termination. When configuring custom SSL certificates, they must be updated on all HA Proxy VMs to ensure consistent and secure communication across the HA environment. Updating only a subset of servers or other components (like API or Repository VMs) would lead to inconsistencies or SSL handshake failures.
* Option A (All API server VMs) is incorrect because the API servers do not directly handle external SSL termination; this is managed by the HA Proxy layer.
* Option B (All HA Proxy VMs) is correct as these VMs are responsible for SSL termination and load balancing in an HA setup, requiring the custom certificates to be applied uniformly.
* Option C (The API and Repository VMs running on the primary cluster) is incorrect because Repository VMs do not handle client-facing traffic, and the API servers rely on HA Proxy for SSL handling.
* Option D (The primary API, Repository, and HA Proxy servers) is incorrect because it implies a single "primary" server focus, whereas in an HA setup, all HA Proxy VMs (not just a primary one) must be updated.
This aligns with NDB's HA architecture, where HA Proxy VMs are the critical components for SSL certificate management.
References
* Nutanix Database Service (NDB) User Guide, Chapter 3: Configuring an NDB Environment, Section:
Configuring High Availability and SSL Certificates
* Nutanix Support & Insights, Knowledge Base Article: "Configuring Custom SSL Certificates in NDB HA Environments"
* Nutanix Certified Professional - Database Automation (NCP-DB) v6.5 Blueprint, Section 3: Configure an NDB Environment
NEW QUESTION # 190
An administrator wants to manage an additional database on an existing database server VM.
What field should the administrator look in for this new database?
Answer: D
Explanation:
When an administrator wants to manage an additional database on an existing database server VM in NDB, the first step is to identify if the database is already recognized by NDB. The "Unregistered Databases" field or section within the NDB interface lists databases that are present on a registered database server VM but have not yet been registered with NDB. This allows the administrator to discover and register the new database, enabling full management capabilities (e.g., provisioning, cloning, or patching). Once registered, the database will move to the "Registered Databases" section.
Option A (Unregistered Databases) is correct as it is the initial field to check for new, unmanaged databases on the VM.
Option B (Database Server VM) is incorrect because this refers to the VM itself, not the databases it hosts.
Option C (Registered Databases) is incorrect because this lists only databases already managed by NDB, not new ones.
Option D (Database Name in NDB) is incorrect as it is not a specific field but a general reference, lacking a defined location.
The administrator should use the Unregistered Databases section to proceed with registration.
References
Nutanix Database Service (NDB) User Guide, Chapter 2: Deploying and Configuring an NDB Solution, Section: Registering Additional Databases Nutanix Certified Professional - Database Automation (NCP-DB) v7.5Blueprint, Section 2: Deploy and Configure an NDB Solution
NEW QUESTION # 191
An administrator needs to provision PostgreSQL instance from a software profile. The software profile was created from a VM with services such as etcd, HAProxy, Patroni and keepalived installed.
What should the administrator perform to successfully provision an HA instance?
Answer: B
Explanation:
To provision a PostgreSQL HA instance from a software profile created from a VM with services like etcd, HAProxy, Patroni, and keepalived installed, the administrator must ensure the instance aligns with NDB's HA framework. These services (e.g., Patroni for PostgreSQL HA management, HAProxy for load balancing) may conflict with NDB's built-in HA mechanisms. Provisioning an HA instance with these services disabled allows NDB to manage HA using its native replication and failover capabilities (e.g., streaming replication), avoiding duplication or interference from the VM's pre-installed services.
* Option A (Provision an HA instance with the services enabled) is incorrect because enabling these services may cause conflicts with NDB's HA management.
* Option B (Disable the services, create a software profile version, and provision an HA instance) is incorrect because disabling services and recreating a profile is unnecessary; the provisioning step can handle service configuration.
* Option C (Provision an HA instance with the services disabled) is correct as it ensures NDB's HA features take precedence without interference.
* Option D (Enable the services, create a software profile version, and provision an HA instance) is incorrect due to potential conflicts with NDB's HA implementation.
Note: The typo "PostqreSQL" is assumed to mean "PostgreSQL."
References
* Nutanix Database Service (NDB) User Guide, Chapter 4: Managing Database Engines, Section:
Provisioning HA Instances
* Nutanix Certified Professional - Database Automation (NCP-DB) v6.5 Blueprint, Section 4: Manage Database Engines
NEW QUESTION # 192
Where should an administrator perform an upgrade within the Era management interface?
Answer: A
Explanation:
In the Nutanix Era management interface, an administrator should perform an upgrade under the Administration > Maintenance section1. As part of the upgrade process, the Era server is upgraded first, followed by all the Era cluster agents and database server agents in parallel1. The Dashboard displays the current version and an option to upgrade the Era server to a latest version when a new version is available for upgrade1. This ensures that the Nutanix Era environment is always up-to-date with the latest features and security updates1.
NEW QUESTION # 193
An administrator needs to create a custom PostgreSQL HA software profile.
Which software component manages the state of the cluster and handles failover?
Answer: D
Explanation:
NDB supports PostgreSQL HA software profiles for provisioning PostgreSQL databases with high availability. PostgreSQL HA software profiles consist of three components: etcd, HAProxy, and Patroni.
etcd is a distributed key-value store that provides a reliable way to store configuration data across a cluster of machines. etcd is used by Patroni to store and synchronize the cluster state and configuration.
HAProxy is a load balancer that distributes incoming requests to the PostgreSQL nodes. HAProxy is used to expose a single endpoint for database connections even as the roles of the individual nodes change.
Patroni is a template for PostgreSQL high availability. Patroni is responsible for managing the state of the cluster and handling failover. Patroni uses etcd as the distributed configuration store and relies on HAProxy for load balancing.
Therefore, the software component that manages the state of the cluster and handles failover is Patroni.
References:
* Nutanix Database Automation (NCP-DB) Course Details, Section 2.4: Provisioning PostgreSQL Databases
* Nutanix Database Automation (NCP-DB) Certification Details, Objective 2.4: Provision PostgreSQL Databases
* Nutanix Database Automation (NCP-DB) YouTube Playlist, Video 2.4: Provisioning PostgreSQL Databases
* [Nutanix Database Automation (NCP-DB) User Guide], Section 2.4: Provision PostgreSQL Databases
* [PostgreSQL High Availability: Under the Hood - Nutanix.dev]
NEW QUESTION # 194
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