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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Register and Protect Databases | 21% | - Describe Time Machine Concepts - Manage Database Snapshots - Register Existing Databases - Describe Data Access Management |
| Topic 2: Monitor and Operate an NDB Solution | 24% | - Manage NDB Patches - Manage NDB Alerts - Manage NDB High Availability - Monitor NDB Environments - Manage NDB Profiles |
| Topic 3: Deploy and Configure an NDB Solution | 11% | - Configure NDB - Identify Deployment Prerequisites and Requirements - Describe the Deployment Process |
| Topic 4: Provision and Clone Databases | 22% | - Manage Database Logs - Manage Database Clones - Manage Databases - Describe Masking and Deleting Operations - Describe Provisioning Workflows |
| Topic 5: NDB Fundamentals | 22% | - Identify NDB Key Features - Describe NDB Architecture and Components - Describe NDB Concepts |
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質問 # 46
An administrator has been tasked with OS and database patching in a Nutanix NDB environment. The administrator wishes to automate these activities.
What should the administrator configure to accomplish this task?
正解：A
解説：
To automate OS and database patching in a Nutanix NDB environment, the administrator should configure a Maintenance Window. A Maintenance Window in NDB allows the administrator to schedule automated patching tasks (e.g., OS updates and database software updates) during specified time periods, minimizing disruption to production workloads. This feature integrates with software profiles and can be set to run periodically or on-demand, ensuring patches are applied efficiently and consistently across the environment.
Option A (Access Control) is incorrect because Access Control manages user permissions, not automation of patching.
Option B (Pulse) is incorrect because Pulse is a monitoring tool, not a scheduling mechanism for patching.
Option C (Maintenance Window) is correct as it provides the scheduling and automation framework for patching activities.
Option D (SMTP Server) is incorrect because SMTP is for email notifications, not patching automation.
This configuration enhances operational efficiency and reliability.
References
Nutanix Database Service (NDB) User Guide, Chapter 4: Managing Software Profiles, Section: Scheduling Maintenance Windows Nutanix Certified Professional - Database Automation (NCP-DB) v7.5Blueprint, Section 4: Manage Database Software Profiles
質問 # 47
An administrator needs to patch an Oracle Database Server VM and must ensure Grid home is allocated sufficient storage space.
At a minimum, how much space must be available for Grid home prior to completing this task?
正解：D
解説：
When patching an Oracle Database Server VM, it's important to ensure that there is sufficient storage space allocated for the Grid home. A minimum of 10GB space is required for this purpose to accommodate the patching process without storage constraints.
References: Nutanix Database Automation documentation, particularly in the sections discussing Oracle database server VM management and patching requirements.
質問 # 48
For supported Linux based database VM's managed by NDB, how would an administrator keep software profiles updated for provisioning new database VMs?
正解：C
解説：
For supported Linux-based database VMs managed by NDB, keeping software profiles updated for provisioning new database VMs requires a structured process. The administrator must first apply the necessary patches (e.g., OS updates and database engine patches) to an existing database VM for each supported database engine (e.g., PostgreSQL, Oracle). Then, a new software profile version must be created using the updated VM as the source. This new version captures the patched configuration and can be used to provision new VMs, ensuring they are deployed with the latest updates.
* Option A (Create a Maintenance window under the policy menu, then under Database VM, add the database VMs to that maintenance window and check both Database and Operating system updates) is incorrect because a Maintenance Window schedules updates for existing VMs, not for updating software profiles for new provisions.
* Option B (Apply patches to a database VM for each supported database engine, then create a new software profile version for each supported database VM for each one using the updated database VM as the source) is correct as it follows the standard NDB process for profile updates.
* Option C (Associate the newly provisioned database VMs with a maintenance window so they are kept updated) is incorrect because this applies to ongoing maintenance, not initial profile updates for provisioning.
* Option D (In the Administrator menu drop down, go the Maintenance tab and choose Download Upgrade) is incorrect because downloading upgrades is part of the patch process, not the profile creation step.
This method ensures new VMs are provisioned with the latest software configurations.
References
* Nutanix Database Service (NDB) User Guide, Chapter 4: Managing Software Profiles, Section:
Updating Software Profiles
* Nutanix Certified Professional - Database Automation (NCP-DB) v6.5 Blueprint, Section 4: Manage Database Software Profiles
質問 # 49
When provisioning an PostgreSQL HA Instance, what are the minimum and maximum number of DB server VMs that can be deployed in a cluster?
正解：D
解説：
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
質問 # 50
An administrator configured a new Active Directory server but is unable to save the configuration.
What must be done before the configuration can be saved?
正解：C
解説：
NDB requires the administrator to verify the Active Directory configuration before enabling the Save action.
After entering the directory server, domain, service-account credentials, and related configuration information, the administrator must click Verify. NDB then tests whether it can connect to the Active Directory server and authenticate using the supplied service account. The Save button becomes available only after this verification succeeds. This prevents an unreachable server, invalid credential, incorrect domain, or connectivity problem from being stored as the active authentication configuration. SMTP alerting is a separate notification feature and has no dependency on Active Directory configuration. A secondary URL is not a mandatory field, and providing a domain IP address alone does not replace the connectivity-verification step.
Nutanix documents this sequence explicitly in its official procedure for configuring Active Directory access.
質問 # 51
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