Last Attempt NCP-DB Questions

When an administrator creates a new SQL Server software profile version to apply the latest cumulative update, they should update the software profile version and set the status to Published1. This makes the new profile version available to all users. NDB will show available updates for any database server using the software profile as soon as the new profile version is published1.

 Data Access Management (DAM) policies are a feature of NDB Multi-Cluster that allows you to control the access and availability of time machine data across different Nutanix clusters. You can use DAM policies to specify which clusters can access the time machine data of a source database, and which clusters can replicate the time machine data for backup or disaster recovery purposes. DAM policies help you to optimize the storage and network resources, as well as ensure the security and compliance of your database workloads. The purpose of DAM policies is not to register multiple Nutanix clusters in NDB, as this is done by using the Add Cluster option in the NDB settings page. The purpose of DAM policies is also not to perform snapshot operations on a single Nutanix cluster, as this is done by using the Time Machine feature in the NDB dashboard. The purpose of DAM policies is also not to remove data accessibility of a time machine across all registered Nutanix clusters in NDB, as this is done by using the Delete option in the Time Machine page. References:

• Nutanix Database Management & Automation Training Course, Module 6: Managing NDB Multi-Cluster, Lesson 2: Data Access Management Policies, Slide 3: Data Access Management Policies
• Nutanix Certified Professional - Database Automation (NCP-DB) 5 Exam, Section 6: Administer an NDB Environment, Objective 6.5: Apply procedural concepts to create Data Access Management (DAM) policies

 The correct answer is C because the NDB Database Agent service is responsible for scheduling and monitoring the NDB-related operations, such as provisioning, patching, cloning, and restoring databases. The NDB Database Agent service is deployed on the NDB server and on each of the database server VMs provisioned by NDB. It contains the tools required to perform each task and communicates with the NDB server through the NDB API. The other options are not correct because they describe different components or functions of the NDB solution. Option A is not correct because the transaction logs are not stored by the NDB Database Agent service, but by the NDB Time Machine service, which is a distributed file system that stores the database snapshots and logs. Option B is not correct because the source databases are not hosted by the NDB Database Agent service, but by the database server VMs, which are virtual machines that contain an instance of the database engine software and the database files. Option D is not correct because the NDB Database Agent service does not contain an instance of the database engine software, but only the tools required to perform the NDB-related operations. The database engine software is installed on the database server VMs, which are provisioned by NDB using the profiles defined by the administrator. References: Nutanix Database Management & Automation (NDMA) course, Nutanix Certified Professional - Database Automation (NCP-DB) certification, Nutanix NCP-DB Certification Exam Syllabus and Study Guide, Nutanix Support & Insights

 Nutanix Era supports a variety of database engines, including Oracle, PostgreSQL, MySQL, and Microsoft SQL Server1. However, when it comes to rolling back a patch using the Command Line Interface (CLI), this feature is specifically supported for the Oracle database engine1. This allows for efficient validation of critical database updates and simplifies database rollback1. Please note that while Era does provide support for other database engines, the ability to rollback a patch using CLI is currently specific to Oracle1.