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| Section | Objectives |
|---|---|
| Topic 1: Data Protection and Backup Integration | - Snapshot Management - Backup Solutions Integration |
| Topic 2: Nutanix Disaster Recovery Architecture | - Replication Types (Sync/Async) - Nutanix Leap Overview - Protection Domains |
| Topic 3: Prism Central Management | - DR Monitoring and Operations - Cluster and Site Management |
| Topic 4: Recovery Operations | - Failover and Failback Procedures - Recovery Plans and Orchestration - Test Recovery Workflows |
| Topic 5: Disaster Recovery Fundamentals | - Business Continuity Principles - DR Concepts (RPO, RTO, SLAs) |
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70. Frage
An administrator is managing a mission-critical Inventory-VM that is part of a Protection Domain (PD) named PD_Production.
* Monday: A scheduled snapshot of PD_Production is successfully taken.
* Tuesday: Due to a configuration error during a cleanup task, the administrator accidentally removes Inventory-VM from the PD_Production Protection Domain. The VM continues to run, but it is no longer being snapped or replicated.
* Wednesday: A database corruption occurs on Inventory-VM. The administrator finds the local snapshot from Monday and performs an In-place Restore (Revert) to recover the data.
Following the successful completion of the In-place Restore, what is the status of Inventory-VM regarding its data protection?
Antwort: B
Begründung:
In Nutanix Protection Domains, the relationship between a virtual machine and a snapshot is tied to the metadata at the time the snapshot was created . When an administrator removes a VM from a PD (Option B), the cluster stops taking new snapshots, but the historical snapshots (recovery points) remain in the storage system until their retention period expires .
If a disaster or corruption occurs (Option Wednesday), the administrator can still use those historical snapshots to perform a " Revert " operation. The Nutanix AOS engine can successfully roll back the VM ' s vDisks to the Monday state because the data exists. However, the " Revert " operation only impacts the data on the disks; it does not re-establish the logical configuration of the Protection Domain. Because the VM was explicitly removed from the PD on Tuesday, the system treats it as an " unprotected " VM after the restore is finished. It will not be included in the next scheduled snapshot cycle of PD_Production. To resume ongoing protection, the administrator must manually add the Inventory-VM back into the PD_Production Protection Domain. This scenario illustrates a critical operational point: restoring data does not automatically restore the protection schedule, and administrators must verify the " Protection Status " of VMs following any manual recovery task to ensure they are not left vulnerable to future failures.
71. Frage
An administrator wants to run a test failover and maps the primary production virtual network to the recovery site production virtual network for the test. What are the two most likely outcomes? (Choose two.)
Antwort: A,D
Begründung:
The fundamental purpose of a " Test Failover " in Nutanix Disaster Recovery is to provide a non-disruptive way to validate the recovery process. During this test, virtual machines are cloned from their most recent snapshots and powered on at the recovery site. If an administrator incorrectly maps the " Test Network " to the actual " Production Network " (VLAN/Subnet) at the recovery site, they create two significant risks.
First, this configuration can lead to immediate IP address conflicts. Because the test VMs have the exact same IP addresses as the live production VMs, having them active on the same logical production network will disrupt routing and potentially cause service outages for real users. Second, it defeats the " isolation " between production and test workflows. A valid DR test should occur in a " sandbox " where test applications can crash or exhibit errors without any possibility of affecting the live environment. By using the production network, the administrator is effectively running a " live " test on the production infrastructure, which is a dangerous violation of standard BCDR best practices. To avoid these outcomes, the administrator must map the test network to a dedicated, isolated VLAN or overlay network at the recovery AZ that has no physical or logical path back to the production segment.
72. Frage
An administrator plans on performing a failover of a VM from a source cluster to a DR cluster. The administrator needs the VM ' s IP address preserved after failover. In what scenario is the VM ' s IP address preserved?
Antwort: D
Begründung:
Preserving IP addresses during a failover is a common requirement for applications with hardcoded IP references or complex inter-service dependencies. In a standard multi-site DR setup, the source and destination sites reside on different Layer 3 subnets, meaning a VM would naturally require a new IP address to be routable at the recovery site. To achieve " IP Preservation, " the underlying network infrastructure must support Layer 2 (L2) stretching.
L2 stretching (often implemented via VXLAN or specialized VPN tunnels like Nutanix Flow Virtual Networking) allows a single logical subnet to span multiple physical locations. When a VM fails over to a cluster on a stretched subnet, it effectively stays on the same network broadcast domain. As a result, its IP address, default gateway, and subnet mask remain valid and unchanged. If the subnets are not stretched, the administrator must rely on the Recovery Plan ' s " IP Mapping " feature to assign a new, valid IP at the destination-which does not " preserve " the original address. While preserving IPs simplifies application recovery, it requires more complex network engineering to ensure that traffic is correctly routed to the active site during a disaster, highlighting the trade-off between application simplicity and infrastructure complexity in BCDR design.
73. Frage
An administrator has recently completed the initial configuration of Nutanix Disaster Recovery for a production environment. Protection Policies and Recovery Plans have been configured and validated by the senior infrastructure team.
The administrator has confirmed that the expected categories are correctly associated with both the Protection Policies and Recovery Plans. During a scheduled test failover, the administrator notices that several VMs are missing from the recovery.
The administrator reviews the environment and notes the following:
* The Protection Summary tab does not show any warnings or errors
* No replication tasks are currently ongoing
* The missing VMs were all deployed within the last two weeks as part of a new application rollout
* The missing VMs are running on the same cluster as other VMs that recovered successfully during the test failover
* The application team followed the standard VM deployment checklist but did not coordinate with the infrastructure team during provisioning Given this information, what is the most likely cause of the missing VMs?
Antwort: D
Begründung:
Modern Nutanix Disaster Recovery (Leap) relies on " Categories " to automate the inclusion of virtual machines into Protection Policies and Recovery Plans. When a Protection Policy is created, it is typically applied to a category (e.g., AppType:SQL) rather than individual VM names.
In this scenario, the newly deployed VMs were missed during a test failover despite other VMs on the same cluster recovering successfully. The most likely root cause is that the application team, working independently, failed to assign the required categories to the new VMs during the provisioning process.
Because the VMs lacked the correct category tags, the Nutanix Protection Policy did not " see " them, and consequently, no recovery points were ever created for them. This is a common operational failure in environments where " infrastructure as code " or strict provisioning standards are not enforced. Recovery Plans (Option A) do not need manual re-synchronization for new VMs if the categories are correctly mapped.
While an initial sync is required (Option D), it would typically show a task or progress rather than just leaving the VMs " missing " from the entire protection summary. Therefore, verifying category assignment is the primary troubleshooting step.
74. Frage
Which ports must remain open to support replication between two Prism Element clusters?
Antwort: C
Begründung:
Replication between Nutanix clusters involves the transfer of both actual data blocks and the metadata required to manage the consistency and scheduling of those snapshots. Two specific services running on the Controller VMs (CVMs) are responsible for these tasks: Stargate and Cerebro.
Port TCP 2009 is used by the Stargate service. Stargate is the primary I/O manager for the Nutanix cluster, and in a BCDR context, it handles the " Snapshot-on-wire " data transfer. This is the port where the actual bits of the virtual disks are sent from the source cluster to the destination cluster. Port TCP 2020 is used by the Cerebro service. Cerebro is the replication engine that handles protection domain orchestration, snapshot scheduling, and cross-site handshake operations. Without port 2020, the clusters cannot synchronize their schedules or confirm that a recovery point has been successfully stored at the remote site. While other ports like 9440 (Prism management) and 22 (SSH) are used for administrative tasks, ports 2009 and 2020 are the mandatory " data path " and " control path " ports required for the continuous and successful replication of workloads between availability zones.
75. Frage
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