NCP-DB Valid Test Objectives | NCP-DB 100% Correct Answers

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Quiz Nutanix - Latest NCP-DB - Nutanix Certified Professional - Database Automation (NCP-DB) v6.5 Valid Test Objectives

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Nutanix NCP-DB Exam Syllabus Topics:

Topic	Details
Topic 1	Monitor Alerts and Storage Usage Within an NDB Implementation: It is all about monitoring alerts and management of storage usage.
Topic 2	Deploy and Configure an NDB Solution: This topic discusses how to deploy, configure, and NDB Instance.
Topic 3	Describe NDB Concepts: It defines database and NDB terminology. The topic also explains benefits and features of NDB.
Topic 4	Administer an NDB Environment: While focusing on the administration of an NDB environment, this topic focuses on managing NDB profiles, applying procedural concepts, and managing networks in NDB. Lastly, the topic explains sub-topics of managing access controls in NDB and identifying how to use NDB APIs and CLI.

Nutanix Certified Professional - Database Automation (NCP-DB) v6.5 Sample Questions (Q107-Q112):

NEW QUESTION # 107
What happens to the primary member in a MongoDB Server Cluster during the NDB patching process?

A. It is patched first and then becomes a secondary member.
B. It becomes a read-only member during the patching process.
C. It is patched last and is restored to its original state.
D. It is skipped during the patching process to ensure no downtime.

Answer: A

Explanation:
According to the NDB documentation, the NDB patching process for MongoDB Server Cluster follows these steps1:
* NDB identifies the primary member of the MongoDB Server Cluster and patches it first.
* NDB triggers a failover to elect a new primary member from the remaining secondary members.
* NDB patches the former primary member, which becomes a secondary member after the failover.
* NDB patches the remaining secondary members one by one.
* NDB verifies the patching status and the cluster health.
This process ensures that the MongoDB Server Cluster always has a primary member available to handle write operations, while minimizing the downtime and the impact on the cluster performance.
References: Nutanix Support & Insights, section "Patching a MongoDB Server Cluster"

NEW QUESTION # 108
An administrator needs to assign a VLAN to provide IP address to a database VM. What is the procedure to create the Network Profile?

A. Add VLAN, Define IP range, Create Network Profile.
B. Create Network Profile, Define IP Range. Add the VLAN.
C. Add VLAN, Create Network Profile. Define IP range.
D. Create Network Profile, Select the VLAN, Define IP Range.

Answer: D

Explanation:
In Nutanix Database Service (NDB), a Network Profile is used to define networking configurations for database VMs, including VLAN assignments and IP address ranges. The correct procedure to create a Network Profile that assigns a VLAN and provides IP addresses to a database VM is as follows:
* Create Network Profile: Start by initiating the creation of a new Network Profile within NDB. This is done from the NDB interface under the "Network" or "Profiles" section.
* Select the VLAN: During the Network Profile creation process, you specify the VLAN that the database VM will use. This involves selecting an existing VLAN configured in the Nutanix cluster (e.
g., via Prism Element) or defining a new VLAN ID if applicable.
* Define IP Range: Finally, you define the IP address range (e.g., a subnet or specific IPs) that will be assigned to the database VM(s) within the selected VLAN. This ensures the VM receives a valid IP address for communication.
The sequence in option B aligns with the NDB workflow, where the Network Profile is created first, followed by associating it with a VLAN and then defining the IP allocation. Other options are incorrect:
* A: "Add the VLAN" is vague and does not specify where the VLAN is added, disrupting the logical flow.
* C: Adding a VLAN before creating the profile is not the standard NDB process, as VLANs are associated during profile creation.
* D: Defining an IP range before creating the profile is out of sequence, as the profile must exist to hold the configuration.
Thus, the verified answer is B. Create Network Profile, Select the VLAN, Define IP Range.
Official Nutanix Database Automation References
* Nutanix Database Management & Automation (NDMA) course, Module 3: Managing Database Instances, Lesson 3.2: Configuring Network Profiles.
* Nutanix Certified Professional - Database Automation (NCP-DB) v6.5 Knowledge Objectives, Section
3: Manage NDB Solutions, Objective 3.1: Configure Network Profiles (applicable to v6.10).
* Nutanix NDB Administration Guide: "Network Profiles" section, detailing VLAN and IP configuration steps.

NEW QUESTION # 109
An administrator needs to patch a PostgreSQL database server VM from version 13.4 to 13.8.
What is the first step within the NDB patching workflow to accomplish this task?

A. Create a new Software Profile with PostgreSQL 13.8.
B. Create a maintenance window and add this PostgreSQL server 13.8 to the queue.
C. Create a Software Profile Version with PostgreSQL 13.8.
D. Create a new Database Parameters profile for PostgreSQL server 13.8.

Answer: C

Explanation:
NDB supports patching for PostgreSQL database instances. Patching for PostgreSQL is validated on VMs provisioned by NDB (greenfield deployments). To patch PostgreSQL database server VMs, you must create a software profile version by uploading the PostgreSQL update file in NDB. You can then use the PostgreSQL update to patch other database server VMs or provision a new database server VM with the updated software profile. The first step in the NDB patching workflow is to create a software profile version with the desired PostgreSQL version.
References:
* Nutanix Database Automation (NCP-DB) Course Details, Section 4.1: NDB Patching Overview
* Nutanix Database Automation (NCP-DB) Certification Details, Objective 4.1: Perform Database Patching
* Nutanix Database Automation (NCP-DB) YouTube Playlist, Video 4.1: NDB Patching Overview
* Nutanix Database Automation (NCP-DB) User Guide, Section 4.4: Patch PostgreSQL Database Software

NEW QUESTION # 110
An administrator needs to perform patching on a MongoDB server cluster within an NDB environment.
How should the administrator accomplish this task?

A. Perform a rolling upgrade, applying the patch to the secondary members first, followed by the primary member.
B. Disable the replica set while patching.
C. Apply the patch to all nodes at once.
D. Perform a rolling upgrade, applying the patch to the primary member first, followed by the secondary members.

Answer: A

Explanation:
The administrator should perform a rolling upgrade, applying the patch to the secondary members first, followed by the primary member, to accomplish the task of patching a MongoDB server cluster within an NDB environment. A rolling upgrade is a method of applying patches or updates to a cluster without downtime or interruption of service. The administrator can use the NDB patching feature to perform a rolling upgrade on a MongoDB server cluster, which consists of a primary member and one or more secondary members that form a replica set. The NDB patching feature allows the administrator to select the software profile version, the database parameters profile, and the network profile for the patching operation. The NDB patching feature also automates the steps of the rolling upgrade, such as:
* Step 1: The administrator initiates the patching operation on the NDB instance, and selects the MongoDB server cluster to be patched.
* Step 2: The NDB instance verifies the prerequisites and compatibility of the patching operation, and creates a pre-patch snapshot of the MongoDB server cluster.
* Step 3: The NDB instance applies the patch to the first secondary member of the MongoDB server cluster, and waits for the patching to complete successfully.
* Step 4: The NDB instance verifies the status and functionality of the patched secondary member, and repeats the patching process for the remaining secondary members of the MongoDB server cluster, one at a time.
* Step 5: The NDB instance performs a failover of the primary member to one of the patched secondary members, and applies the patch to the original primary member.
* Step 6: The NDB instance verifies the status and functionality of the patched primary member, and performs a failback of the primary member to the original primary member, if desired.
* Step 7: The NDB instance creates a post-patch snapshot of the MongoDB server cluster, and completes the patching operation.
Performing a rolling upgrade, applying the patch to the secondary members first, followed by the primary member, is the recommended and best practice method of patching a MongoDB server cluster within an NDB environment, as it ensures the high availability, consistency, and performance of the MongoDB server cluster and the databases.
Performing a rolling upgrade, applying the patch to the primary member first, followed by the secondary members, is not a valid or feasible method of patching a MongoDB server cluster within an NDB environment, as it would cause downtime, data loss, and inconsistency of the MongoDB server cluster and the databases. Applying the patch to the primary member first would disrupt the replication and synchronization of the MongoDB server cluster, and would require manual intervention and recovery steps to restore the MongoDB server cluster to a functional state.
Applying the patch to all nodes at once is not a valid or feasible method of patching a MongoDB server cluster within an NDB environment, as it would cause downtime, data loss, and inconsistency of the MongoDB server cluster and the databases. Applying the patch to all nodes at once would require shutting down the entire MongoDB server cluster, and would expose the MongoDB server cluster and the databases to potential errors, failures, and corruption during the patching process.
Disabling the replica set while patching is not a valid or feasible method of patching a MongoDB server cluster within an NDB environment, as it would cause downtime, data loss, and inconsistency of the MongoDB server cluster and the databases. Disabling the replica set while patching would break the replication and synchronization of the MongoDB server cluster, and would require manual intervention and recovery steps to re-enable the replica set and restore the MongoDB server cluster to a functional state.
References:
* Nutanix Database Management & Automation Training Course, Module 5: Nutanix Era Operations, Lesson 5.1: Nutanix Era Operations, slides 11-12, 15-16.
* Nutanix Database Management & Automation Training Course, Module 5: Nutanix Era Operations, Lesson 5.3: Nutanix Era Patching, slides 5-9.
* Nutanix Database Management & Automation Training Course, Module 5: Nutanix Era Operations, Lesson 5.4: Nutanix Era Patching Lab, slides 5-10.
* Nutanix Database Management & Automation Training Course, Module 7: Nutanix Era Troubleshooting, Lesson 7.1: Nutanix Era Troubleshooting, slide 6.

NEW QUESTION # 111
An administrator needs to deploy a cumulative update (CU) for SQL Server.
What steps would the administrator take to prepare this deployment with NDB?

A. Apply the patch to the profile VM, delete the existing Software Profile and create a new Software Profile using the profile VM as the source.
B. Create a new Software Profile version using the CU executable and publish that version.
C. Create a new Software Profile using the CU executable and publish that profile.
D. Apply the patch to the profile VM, then create a new Software Profile version using the profile VM as the source.

Answer: D

Explanation:
The correct answer is C because it follows the recommended procedure for applying a CU to a SQL Server Software Profile in NDB. By applying the patch to the profile VM, the administrator ensures that the CU is compatible with the existing Software Profile settings and configuration. By creating a new Software Profile version, the administrator preserves the previous version of the Software Profile for rollback purposes and allows the new version to be tested and published. Option A is incorrect because it deletes the existing Software Profile, which may cause data loss and prevent rollback. Option B is incorrect because it does not apply the patch to the profile VM, which may result in errors or inconsistencies in the Software Profile.
Option D is incorrect because it creates a new Software Profile instead of a new version, which may cause confusion and duplication.
References: The following sources provide more information about the Software Profile management and patching in NDB:
* Nutanix Database Management & Automation (NDMA) course, Module 5: Patching Databases Using NDB, Lesson 5.2: Creating and Modifying Software Profiles
* Nutanix Certified Professional - Database Automation (NCP-DB) v6.5, Knowledge Objectives, Section
4 - Operate and Maintain an NDB Environment
* Nutanix Database Service (NDB) User Guide, Chapter 5: Patching Databases Using NDB, Section 5.2:
Creating and Modifying Software Profiles
* Nutanix Database Service (NDB) User Guide, Chapter 5: Patching Databases Using NDB, Section 5.3:
Testing and Publishing Database Patches

NEW QUESTION # 112
......

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