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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Describe NDB Concepts | 10% | - Define database and NDB terminology - Describe NDB features and benefits |
| Topic 2: Operate and Maintain an NDB Environment | 25% | - Troubleshoot NDB operations - Apply patches and upgrades - Register database servers and databases - Provision and manage databases |
| Topic 3: Administer an NDB Environment | 15% | - Integrate with Nutanix clusters - Upgrade NDB software - Manage profiles and configurations |
| Topic 4: Deploy and Configure an NDB Solution | 20% | - Configure NDB settings and integration - Deploy NDB components |
| Topic 5: Protect NDB-managed Databases Using Time Machine | 15% | - Create, restore, and refresh clones - Manage SLA and retention policies - Implement data protection and access control |
| Topic 6: Monitor Alerts and Storage Usage Within an NDB Implementation | 15% | - Monitor alerts and notifications - Monitor and manage storage consumption |
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질문 # 118
An administrator wants to provision databases with NDB on Nutanix Cloud Clusters (NC2) on Azure. What type of networking is supported?
정답：B
설명：
NDB supports database and database server VM deployment on NC2 on Azure by using overlay networks created through Nutanix Flow Virtual Networking. A Flow overlay subnet provides the logical network used by the NDB-managed database server VMs while allowing the networking configuration to operate consistently within the NC2 environment. Flow underlay subnets are not the supported choice for this NDB deployment model. AHV IP Address Management is associated with AHV-managed networks and does not represent the required NC2 on Azure networking type. Azure-native networking exists beneath the NC2 infrastructure, but NDB-managed database provisioning uses the Flow overlay network exposed within NC2 rather than directly attaching database VMs to a native Azure network. Nutanix's official NDB on NC2 documentation confirms support for Flow Virtual Networking overlay networks on NC2 environments.
질문 # 119
An administrator has noticed that the automatic snapshot and log catch-up (automatic and manual) activities for a Time Machine are halted and manual snapshots cannot be created.
What status is this Time Machine in?
정답：C
설명：
In NDB, a Time Machine manages snapshots and log catch-up operations for database protection and recovery. The scenario describes a Time Machine where automatic snapshot and log catch-up activities (both automatic and manual) are halted, and manual snapshots cannot be created. This indicates the Time Machine is in a PAUSED state.
In NDB, the Time Machine states are:
FROZEN: A temporary state during specific operations (e.g., cloning), but it doesn't halt all activities permanently.
OFFLINE: Indicates the Time Machine is unavailable or not operational, often due to connectivity or configuration issues, but this typically prevents access rather than just halting operations.
PAUSED: Explicitly stops all scheduled and manual snapshot/log activities, often manually triggered by an administrator or due to an error condition (e.g., resource constraints). Operations resume when unpaused.
READY: The normal operational state where snapshots and log catch-ups occur as scheduled.
Given the inability to create manual snapshots alongside halted automatic operations, PAUSED is the most fitting status, as it reflects an intentional or enforced suspension of activities.
Official Nutanix Database Automation References
Nutanix Database Management & Automation (NDMA) course, Module 5: Data Protection and Recovery, Lesson 5.2: Managing Time Machines.
Nutanix Certified Professional - Database Automation (NCP-DB) v7.5Knowledge Objectives, Section 5:
Protect Databases Using NDB, Objective 5.2: Manage Time Machine States (applicable to v7.5).
Nutanix NDB Administration Guide: "Time Machine Statuses and Operations" section.
질문 # 120
An administrator needs to restore a source database from a snapshot. The database shares the source volume with multiple other databases.
How does NDB handle this database restore operation?
정답：D
설명：
The correct answer is A because NDB handles the database restore operation by copying the specific database files from the snapshot volume to the source volume, without affecting the other databases that share the same source volume. NDB uses a copy-on-write mechanism to create snapshots and clones, which means that only the changes made to the database files are stored in the snapshot or clone volume, while the original files are kept in the source volume. Therefore, when restoring a source database from a snapshot, NDB only needs to copy the specific database files that have been modified since the snapshot was taken, and overwrite them on the source volume. The other options are not correct because they either cause data loss or unnecessary data transfer. Option B is not correct because replacing the source volume with specific db disks would erase the other databases that share the same source volume, which is not desirable. Option C is not correct because replacing the source volume with the snapshot volume would also erase the other databases that share the same source volume, as well as any changes made to the source database after the snapshot was taken, which is not desirable. Option D is not correct because copying all database files to the source volume wouldbe inefficient and unnecessary, as only the modified files need to be copied, and the other files are already present on the source volume. 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]
질문 # 121
An administrator has been tasked with deploying the first NDB VM on a dedicated NDB cluster at the primary data center.
Which format must the administrator use to deploy the initial NDB VM?
정답：A
설명：
The first NDB management-plane VM on an AHV-based Nutanix cluster is deployed from the NDB QCOW2 disk image. The administrator downloads the QCOW2 image from the Nutanix Support portal, configures it through the Prism Element Image Service, and then creates the NDB VM from that image. QCOW2 is the appropriate virtual-disk format for AHV because AHV uses the KVM virtualization stack. VMDK is principally associated with VMware virtual disks, VHDX is used by Microsoft Hyper-V, and VDI is associated primarily with Oracle VirtualBox. Those formats are not used for the initial NDB VM deployment on a dedicated AHV cluster. Consequently, option C is correct. The VM must subsequently receive the required compute, network, and static-IP configuration before NDB initial setup is completed. NDB User Guide-Installing NDB on AHV
질문 # 122
Which response shows two ways to upgrade an NDB Server?
정답：C
설명：
There are two ways to upgrade an NDB Server: one-click upgrade and offline upgrade. One-click upgrade is the recommended method, as it automatically downloads and installs the latest NDB software version from the Nutanix portal. Offline upgrade is an alternative method, which requires you to manually download the NDB software bundle and upload it to the NDB Server VM. Both methods require you to have a valid Nutanix account and an internet connection. References:
* Nutanix Certified Professional - Database Automation (NCP-DB), Section 6 - Administer an NDB Environment
* Database (NCP-DB) Exam Blueprint Guide - Nutanix, Page 10, Objective 6.2
* Nutanix Database Management & Automation (NDMA) course, Module 6, Lesson 6.1 - NDB Software Upgrade
질문 # 123
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