An administrator needs to add a stretched VLAN across two clusters in NDB Which two prerequisites should be met prior to completing this action? (Choose two.)
Answer(s): B,C
A stretched VLAN is a virtual network that spans across multiple Nutanix clusters and allows the communication between VMs on different clusters using the same subnet. A stretched VLAN can be used to provide high availability and load balancing for NDB components, such as HAProxy VMs, that require a virtual IP address (VIP) to be accessible from any cluster. To add a stretched VLAN across two clusters in NDB, the administrator needs to meet two prerequisites: the VLAN must be static and both clusters must be registered in NDB. A static VLAN is a VLAN that is manually created and configured by the administrator, as opposed to an IPAM VLAN that is automatically created and managed by NDB. A static VLAN can be added to a stretched VLAN in NDB, while an IPAM VLAN cannot. Both clusters must be registered in NDB before adding a stretched VLAN, as NDB needs to have the information and access to the clusters and their networks. The administrator can register the clusters in NDB using the Prism Element details, agent network configuration, and storage container information. The other option, Nutanix Cluster Management, is not a prerequisite for adding a stretched VLAN in NDB. Nutanix Cluster Management is a feature that allows the administrator to manage multiple Nutanix clusters from a single NDB UI, such as creating or deleting clusters, adding or removing nodes, or performing cluster operations. Nutanix Cluster Management is not required for adding a stretched VLAN, as the VLANs are created and configured in Prism Element, not in NDB.
Nutanix Certified Professional - Database Automation (NCP-DB) v6.5, Section 2 - Deploy and Configure an NDB Solution, Objective 2.3: Configure NDB High Availability Nutanix Database Management & Automation (NDMA) Course, Module 3: Nutanix Database Service (NDB) Installation and Configuration, Lesson 3.3: Configuring NDB High Availability, Topic: NDB HA Architecture and ComponentsNutanix Database Service High Availability Deployment Overview, Section: HAProxy VMs and Stretched VLANs[Configuring a Virtual NIC to Operate in Access or Trunk Mode - Nutanix], Section: Creating a vNIC in Access or Trunk Mode
A user accidentally drops a table in the database at 10:42pm and the NDB administrator is tasked with restoring the table.The snapshot schedule is set for every 30 minutes and the log catchup is set for every 15 minutes.The last available snapshot is at 10:30pm.What is the optimal path to restore the table back with minimum data loss?
Answer(s): C
The optimal path to restore the table back with minimum data loss is to use the point in time restore feature of NDB, which allows the administrator to restore the database to a specific point in time based on the available snapshots and logs1. By restoring using point in time till 10:42pm, the administrator can recover the table just before it was dropped by the user, and minimize the data loss to the least possible amount1. The other options are not optimal, as they either involve restoring an older snapshot, which may result in more data loss, or restoring a non-existent snapshot, which is not possible.
1: Nutanix Database Automation (NCP-DB) course, Module 6: Database Recovery, Lesson 6.2: Point in Time Restore, slide 5
An administrator needs to make new VLANs available when provisioning a Oracle cluster database, which have been added to NDB via the Administration menu. What needs to be done to expose the new VLANs for provisioning?
Answer(s): B
A Network Profile is a collection of network settings that are used to provision database server VMs in NDB. A Network Profile can include one or more VLANs, IP ranges, and DNS servers. To make new VLANs available when provisioning an Oracle cluster database, you need to update the Network Profile to include the new VLANs. You can do this by editing the existing Network Profile or creating a new one with the new VLANs. You do not need to create or update the VLANs in Prism Element, as NDB can discover the VLANs configured in AHV1.
Nutanix Database Management & Automation (NDMA) course, Module 2, Lesson 2.4 - Network ProfilesNutanix Support & Insights, Nutanix NDB User Guide v2.5, Network Profiles Nutanix Certified Professional - Database Automation (NCP-DB), Section 2 - Deploy and Configure an NDB Solution
An administrator is interested in using profiles to simplify the database provisioning process. The profile needs to include information related to the SQL service startup account, and the NDB worker service account.Which profile would help the administrator accomplish this task?
Answer(s): A
The correct answer is A because the Windows Domain profile is the profile that includes information related to the SQL service startup account and the NDB worker service account. A Windows Domain profile is a collection of settings that define how NDB manages Windows-based database servers and databases. It contains the following information:The domain name and credentials to join the database server VMs to the domain The SQL service startup account and password to run the SQL Server service on the database server VMsThe NDB worker service account and password to run the NDB Database Agent service on the database server VMsThe SQL Server authentication mode to use for the databases By using a Windows Domain profile, the administrator can simplify the database provisioning process by applying the same settings to multiple database server VMs and databases, without having to manually enter them each time. The other options are not correct because they describe different types of profiles that do not include information related to the SQL service startup account and the NDB worker service account. Option B is not correct because the Network profile is a profile that defines the network settings for the database server VMs, such as the IP address, subnet mask, gateway, DNS, and VLAN. Option C is not correct because the Database Parameter profile is a profile that defines the database parameters for the databases, such as the memory, CPU, storage, and performance settings. Option D is not correct because the Software profile is a profile that defines the software settings for the database server VMs and databases, such as the database engine version, edition, and features.
Nutanix Database Management & Automation (NDMA) course, Nutanix Certified Professional - Database Automation (NCP-DB) certification, Nutanix NCP-DB Certification Exam Syllabus and Study Guide, Nutanix Database Services: Database modernization with Era - Now available
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?
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.
Nutanix Support & Insights, section "NDB Data Access"
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