RELIABLE NCP-DB TEST DURATION | NCP-DB RELIABLE TEST PRICE

Reliable NCP-DB Test Duration | NCP-DB Reliable Test Price

Reliable NCP-DB Test Duration | NCP-DB Reliable Test Price

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Nutanix Certified Professional - Database Automation (NCP-DB) v6.5 Sample Questions (Q154-Q159):

NEW QUESTION # 154
During maintenance, a team wants to power off the repository VM. The VM is not the primary or synchronized copy node. What is the expected outcome?

  • A. Manual interaction will be required to restore service.
  • B. The HAProxy VMs will failover instead.
  • C. NDB services will fail over immediately.
  • D. There will be no service interruption.

Answer: D

Explanation:
In an NDB environment, the repository VM stores metadata and configuration data but is not a critical runtime component for service availability. If the team powers off the repository VM during maintenance, and it is neither the primary nor a synchronized copy node, the NDB service will continue to operate without interruption. NDB's high availability (HA) architecture, managed by HAProxy and other components, ensures redundancy and failover capabilities, allowing the system to rely on the primary and synchronized nodes. The repository VM's downtime only affects metadata access, which can be restored post-maintenance without impacting ongoing database operations.
* Option A (The HAProxy VMs will failover instead) is incorrect because HAProxy failover is triggered by primary service node failures, not repository VM power-off.
* Option B (There will be no service interruption) is correct as the HA design tolerates a non-primary, non-synchronized repository VM being offline.
* Option C (Manual interaction will be required to restore service) is incorrect because no service restoration is needed during this scenario.
* Option D (NDB services will fail over immediately) is incorrect because failover is not triggered by a non-critical repository VM power-off.
This reflects NDB's robust HA implementation.
References
* Nutanix Database Service (NDB) User Guide, Chapter 3: Configuring an NDB Environment, Section:
High Availability Architecture
* Nutanix Support & Insights, Knowledge Base Article: "Impact of Repository VM Maintenance in NDB"
* Nutanix Certified Professional - Database Automation (NCP-DB) v6.5 Blueprint, Section 3: Configure an NDB Environment


NEW QUESTION # 155
An administrator needs to add a stretched VLAN across two clusters in NDB Which two prerequisites should be met prior to completing this action? (Choose two.)

  • A. VLAN must be static.
  • B. Nutanix Cluster Management must be enabled.
  • C. VLAN must be IPAM.
  • D. Both clusters must be registered in NDB.

Answer: A,D

Explanation:
A stretched VLAN is a virtual network that spans across multiple Nutanix clusters and allows the communication between VMs on different clusters using the same subnet. A stretched VLAN can be used to provide high availability and load balancing for NDB components, such as HAProxy VMs, that require a virtual IP address (VIP) to be accessible from any cluster. To add a stretched VLAN across two clusters in NDB, the administrator needs to meet two prerequisites: the VLAN must be static and both clusters must be registered in NDB. A static VLAN is a VLAN that is manually created and configured by the administrator, as opposed to an IPAM VLAN that is automatically created and managed by NDB. A static VLAN can be added to a stretched VLAN in NDB, while an IPAM VLAN cannot. Both clusters must be registered in NDB before adding a stretched VLAN, as NDB needs to have the information and access to the clusters and their networks. The administrator can register the clusters in NDB using the Prism Element details, agent network configuration, and storage container information. The other option, Nutanix Cluster Management, is not a prerequisite for adding a stretched VLAN in NDB. Nutanix Cluster Management is a feature that allows the administrator to manage multiple Nutanix clusters from a single NDB UI, such as creating or deleting clusters, adding or removing nodes, or performing cluster operations. Nutanix Cluster Management is not required for adding a stretched VLAN, as the VLANs are created and configured in Prism Element, not in NDB. References:
* Nutanix Certified Professional - Database Automation (NCP-DB) v6.5, Section 2 - Deploy and Configure an NDB Solution, Objective 2.3: Configure NDB High Availability
* Nutanix Database Management & Automation (NDMA) Course, Module 3: Nutanix Database Service (NDB) Installation and Configuration, Lesson 3.3: Configuring NDB High Availability, Topic: NDB HA Architecture and Components
* Nutanix Database Service High Availability Deployment Overview, Section: HAProxy VMs and Stretched VLANs
* [Configuring a Virtual NIC to Operate in Access or Trunk Mode - Nutanix], Section: Creating a vNIC in Access or Trunk Mode


NEW QUESTION # 156
While restoring a PostgreSQL HA instance, an administrator notices that the restore of a standby node has failed. The primary node is ready to seive application traffic.
In what state does NDB leave the database?

  • A. RECOVERY PENDING
  • B. OFFLINE
  • C. PAKFIAL.READY
  • D. ONLINE

Answer: D

Explanation:
When restoring a PostgreSQL HA instance in NDB, if the standby node fails to restore but the primary node is successfully restored and ready to serve application traffic, NDB considers the database operational from the perspective of the primary node. In this scenario, NDB leaves the database in an "ONLINE" state, reflecting that the primary node is functional and capable of handling requests, even though the HA configuration is not fully intact due to the standby failure. The administrator would need to address the standby node separately (e.g., by re-provisioning or troubleshooting), but the database's state is determined by the primary node's readiness.
* Option A (PAKFIAL.READY) appears to be a typo and is not a valid NDB state.
* Option B (OFFLINE) is incorrect because the primary node is operational, so the database is not offline.
* Option C (ONLINE) is correct as it reflects the primary node's ability to serve traffic.
* Option D (RECOVERY PENDING) is incorrect because the primary node has completed recovery and is active, not pending.
This behavior aligns with NDB's focus on maintaining service availability where possible.
References
* Nutanix Database Service (NDB) User Guide, Chapter 5: Configuring Time Machines, Section:
Restoring HA Instances
* Nutanix Support & Insights, Knowledge Base Article: "Handling Partial Restore Failures in PostgreSQL HA"
* Nutanix Certified Professional - Database Automation (NCP-DB) v6.5 Blueprint, Section 5: Protect Databases Using Time Machine


NEW QUESTION # 157
An administrator would like to replicate database snapshots to remote Nutanix clusters.
What should the administrator do to manage Time Machine data availability across all registered Nutanix clusters in NDB?

  • A. Update the cluster's Data Access & select the remote cluster.
  • B. Select the snapshots & replicate them to each Nutanix cluster.
  • C. Update the SLA on the Time Machine & schedule the remote replication.
  • D. Add Data Access to each Nutanix cluster and assign a DAM policy.

Answer: D

Explanation:
To replicate database snapshots to remote Nutanix clusters, the administrator needs to add Data Access to each Nutanix cluster and assign a Data Availability Management (DAM) policy. Data Access is a feature of NDB that enables cross-cluster data mobility and protection. A DAM policy defines the replication frequency, retention period, and priority of the database snapshots across the clusters. By adding Data Access to each Nutanix cluster and assigning a DAM policy, the administrator can manage the Time Machine data availability across all registered Nutanix clusters in NDB.
References: Nutanix Support & Insights, section "NDB Data Access"


NEW QUESTION # 158
An administrator needs to reset the NDB GUI password.
What should the administrator perform from the SSH session?

  • A. 1.Enter the era CLl
    2.Execute: security password reset
  • B. 1. Enter the era-server CLl
    2. Execute: security password reset
  • C. sudo passwd era
  • D. sudo passwd admin

Answer: B

Explanation:
To reset the NDB GUI password in Nutanix Database Service (NDB), an administrator must access the system through an SSH session and use the appropriate command-line interface (CLI) tools provided by NDB. The correct process involves entering the era-server CLI, which is the specific CLI environment for managing NDB-related configurations, including security settings like password resets. Once in the era-server CLI, the administrator executes the security password reset command to initiate the password reset process for the NDB GUI. This method ensures that the reset is performed within the NDB-managed environment securely and aligns with Nutanix's recommended administrative procedures.
* Option A is correct because it specifies the era-server CLI and the exact command security password reset, which are consistent with NDB's administrative tools for managing GUI access credentials.
* Option B (sudo passwd era) is incorrect because era is not a system user account in the context of NDB's Linux-based control plane; this command pertains to standard Linux user management, not NDB-specific GUI password resets.
* Option C (sudo passwd admin) is also incorrect as admin refers to a generic user that may not correspond to the NDB GUI account, and this approach bypasses NDB's internal security mechanisms.
* Option D is incorrect due to a typo (era CLI instead of era-server CLI), which renders it imprecise despite the intent being similar to Option A.
This process assumes the administrator has SSH access to the NDB control plane VM and the necessary privileges to execute these commands.
References
* Nutanix Database Service (NDB) User Guide, Section: Administering an NDB Environment, Subsection: Managing Access Controls and Password Resets
* Nutanix Support & Insights, Knowledge Base Article: "Resetting NDB GUI Password via CLI"
* Nutanix Certified Professional - Database Automation (NCP-DB) v6.5 Blueprint, Section 6: Administer an NDB Environment


NEW QUESTION # 159
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