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NEW QUESTION # 157
A new web application performs up to 200 concurrent connections to a PostgreSQL database. An administrator needs to configure the system to provision those DB servers.
Which action would easily help the administrator achieving this goal?
Answer: A
Explanation:
A new web application with up to 200 concurrent connections to a PostgreSQL database requires a robust and scalable configuration. Provisioning a PostgreSQL HA (High Availability) instance in NDB is the most effective action to achieve this goal. An HA instance leverages replication (e.g., streaming replication) to distribute load and ensure availability, accommodating high concurrency by allowing multiple nodes to handle traffic. This approach simplifies configuration compared to manual scripting or parameter adjustments.
Option A (Use Post Create Command when provisioning the DB) is incorrect because post-create commands are for custom scripts, not optimal for handling concurrent connections.
Option B (Create a new Database Parameters profile) is incorrect because while it can tune settings, it's less efficient than HA for scaling concurrency.
Option C (Edit the API equivalent shell script) is incorrect as it's a manual and error-prone method compared to HA provisioning.
Option D is correct because a PostgreSQL HA instance natively supports high concurrency and availability.
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) v7.5Blueprint, Section 4: Manage Database Engines
NEW QUESTION # 158
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?
Answer: C
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 # 159
An administrator is experiencing issues with NDB and some of its operations. A case has been logged with Nutanix Support and a request has been made to gather a diagnostics bundle.
Where are two valid places to generate and download a diagnostics bundle? (Choose two.)
Answer: B,D
Explanation:
When an administrator experiences issues with NDB and Nutanix Support requests a diagnostics bundle, it can be generated from two valid locations. The NDB GUI provides an option under the administration or support section to create and download the bundle, offering a user-friendly interface. Alternatively, the NDB CLI allows generation via specific commands (e.g., era diagnostics collect), providing a scriptable approach.
Both methods are supported for troubleshooting and support purposes.
Option A (Prism Central GUI) is incorrect because diagnostics for NDB are managed within NDB interfaces, not Prism Central.
Option B (Prism Element GUI) is incorrect as Prism Element focuses on cluster management, not NDB- specific diagnostics.
Option C (NDB GUI) is correct as it supports bundle generation via the UI.
Option D (NDB CLI) is correct as it supports bundle generation via command-line tools.
References
Nutanix Database Service (NDB) User Guide, Chapter 6: Administering an NDB Environment, Section:
Generating Diagnostics Bundle
Nutanix Support & Insights, Knowledge Base Article: "Collecting NDB Diagnostics for Support" Nutanix Certified Professional - Database Automation (NCP-DB) v7.5Blueprint, Section 6: Administer an NDB Environment
NEW QUESTION # 160
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: A
Explanation:
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 Databases Using 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 Machine Nutanix Database Service (NDB) User Guide, Chapter 6: Protecting Databases Using Time Machine, Section
6.1: Creating and Modifying SLA Retention Policies
NEW QUESTION # 161
A NDB non-administrative user wants to provision an Oracle database leveraging a Software Profile that the administrator created. What must the administrator do to ensure that this user has access to the Oracle Software Profile?
Answer: A
Explanation:
To allow a non-administrative NDB user to provision an Oracle database using a Software Profile created by an administrator, the administrator must promote the Software Profile to Published. In NDB, Software Profiles define the database software version and configuration (e.g., Oracle binaries). By default, a newly created profile is in a draft or private state. Promoting it to "Published" makes it available for use by other NDB users, including non-administrative ones, within the access control framework. This ensures the profile is validated and accessible without requiring individual user assignments.
Other options are incorrect:
A). Ensure that specified users have access to the Software Profile using Access Control: Access Control manages user permissions but does not make the profile available unless it is published.
B). Replicate the Software Profile to other Nutanix clusters: Replication is for HA or disaster recovery, not user access.
C). Ensure that the Software Profile has been properly versioned to the latest release of Oracle: Versioning ensures compatibility but does not grant user access.
Thus, the verified answer is D, aligning with NDB's profile management workflow.
Official Nutanix Database Automation References
Nutanix Database Management & Automation (NDMA) course, Module 3: Managing Database Instances, Lesson 3.1: Managing Software Profiles.
Nutanix Certified Professional - Database Automation (NCP-DB) v7.5Knowledge Objectives, Section 3:
Manage NDB Solutions, Objective 3.1: Configure Software Profiles (applicable to v7.5).
Nutanix NDB Administration Guide: "Publishing Software Profiles" section.
NEW QUESTION # 162
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