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| Certification Vendor: | Nutanix |
|---|---|
| Exam Name: | Nutanix Certified Professional - Database Automation (NCP-DB) v6.5 |
| Exam Number: | NCP-DB-6.5 |
| Certificate Validity Period: | 2 years |
| Related Certifications: | Nutanix Certified Professional (NCP) |
| Real Exam Qty: | 75 |
| Exam Format: | Multiple Choice (Single/Multiple Response) |
| Exam Price: | $199 USD |
| Available Languages: | English |
| Passing Score: | 70% |
| Exam Duration: | 120 minutes |
| Recommended Training: | Nutanix Database Service Administration Training NCP-DB 6.5 Exam Blueprint Guide |
| Exam Registration: | Nutanix Certification Portal |
| Sample Questions: | Nutanix NCP-DB Sample Questions |
| Exam Way: | Online proctored / Onsite at authorized test centers |
| Pre Condition: | 1–2 years of database administration experience; 6+ months of hands-on experience with Nutanix Database Service (NDB) or Nutanix Era |
| Official Syllabus URL: | https://www.nutanix.com/support-services/training-certification/certifications/certification-details-nutanix-certified-professional-database-automation-v65 |
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137. Frage
What are two supported entities that metadata tags can be applied to? (Choose two.)
Antwort: A,D
Begründung:
According to the Nutanix Database Automation (NCP-DB) learning documents, metadata tags can be applied to various entities in Nutanix Era for better database inventory management1. Among the options provided, Databases and Clones are two entities that support metadata tags1. These tags can be used to categorize, search, and manage these entities more effectively1. Please note that the information might be available in the Nutanix Database Automation (NCP-DB) course materials or in the Nutanix Era documentation.
138. Frage
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?
Antwort: B
Begründung:
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) v7.5Blueprint, Section 3: Configure an NDB Environment
139. Frage
How can Era be config90ured to send alert notifications to email recipients?
Antwort: A
140. Frage
A request is received to refresh a database clone from a new manual snapshot. When the administrator attempts to create the new snapshot from the Time Machine, it is in a Frozen state.
What causes a Time Machine to enter the Frozen state and what are the administrator's options to complete the request?
Antwort: C
Begründung:
A Time Machine is a core construct of the copy data management service in NDB that captures and manages the data of a database to deliver a recovery point objective (RPO) SLA. A Time Machine can enter a Frozen state for various reasons, such as database de-registration, snapshot or log catchup failures, or manual intervention. When a Time Machine is in a Frozen state, it stops taking new snapshots and log backups, and cannot perform any clone, refresh, or restore operations. To resume the normal operation of a Time Machine, it must be thawed by resolving the root cause of the freeze. One of the common causes of a Time Machine freeze is when the database is de-registered from NDB without removing the Time Machine. This can happen when the administrator wants to move the database to a different NDB instance or cluster, or when the database is accidentally de-registered. In this case, the Time Machine becomes orphaned and frozen, and cannot be used for any operations. To complete the request to refresh a database clone from a new manual snapshot, the administrator must first re-register the database in NDB using the same database name and ID as before. This will automatically thaw the Time Machine and resume its operation. The administrator can then create a new manual snapshot from the Time Machine and use it to refresh the database clone. The other options are not correct, as they either require unnecessary steps or do not address the root cause of the freeze. References:
Nutanix Certified Professional - Database Automation (NCP-DB) v6.5, Section 5 - Protect NDB-managed Databases Using Time Machine, Objective 5.1: Create, delete, and modify SLA retention policies Nutanix Database Management & Automation (NDMA) Course, Module 4: Nutanix Database Service (NDB) Data Protection, Lesson 4.1: Data Protection Overview, Topic: Time Machine Concepts Nutanix Support & Insights, TN-2101: Nutanix Database Service Time Machine Under the Hood, Section:
Time Machine States and Transitions
141. Frage
When provisioning an PostgreSQL HA Instance, what are the minimum and maximum number of DB server VMs that can be deployed in a cluster?
Antwort: A
Begründung:
When provisioning a PostgreSQL HA Instance using NDB, the minimum and maximum number of DB server VMs that can be deployed in a cluster are 2 and 4, respectively. A PostgreSQL HA Instance is a database instance that provides high availability and fault tolerance for PostgreSQL databases using the Patroni framework. Patroni is a Python-based tool that manages PostgreSQL configuration and performs automatic failover and switchover operations. Patroni relies on a distributed consensus store, such as etcd, Consul, or ZooKeeper, to store and synchronize the cluster state and leader information. NDB supports etcd as the consensus store for PostgreSQL HA Instances. NDB allows the administrator to provision PostgreSQL HA Instances with different sizes and configurations, such as small, medium, large, or custom. The size of thePostgreSQL HA Instance determines the number of DB server VMs, the number of etcd nodes, the CPU, memory, and disk resources, and the replication factor of the database. The minimum number of DB server VMs for a PostgreSQL HA Instance is 2, which corresponds to a small size instance. This configuration provides one leader and one follower DB server VM, and one etcd node. The maximum number of DB server VMs for a PostgreSQL HA Instance is 4, which corresponds to a large size instance. This configuration provides one leader and three follower DB server VMs, and three etcd nodes. The other options are not valid for a PostgreSQL HA Instance, as they either do not provide enough redundancy or exceed the supported limit of DB server VMs. References:
* 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: Provisioning PostgreSQL HA Instances
* Nutanix Database Service (NDB) User Guide, Chapter 4: Provisioning Databases, Section: Provisioning PostgreSQL HA Instances
* [PostgreSQL High Availability: Under the Hood - Nutanix.dev], Section: PostgreSQL HA Architecture and Components
142. Frage
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