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| Section | Objectives |
|---|---|
| Topic 1: Monitoring, Testing and Troubleshooting | - Troubleshooting permission issues and misconfigured DR environments - Non-disruptive recovery testing - Setting up alerts for replication lag - Resolving third-party backup integration problems - Documenting runbooks for incident response - Diagnosing network, storage and replication failures |
| Topic 2: Data Protection and Snapshots | - Snapshot retention policies design - Storage configuration for BCDR - Incremental backup implementation - Data restoration at VM and application level - Snapshot scheduling and management |
| Topic 3: Replication and Failover Architecture | - Network segmentation for BCDR environments - Failover readiness validation - Recovery site capacity management - Synchronous replication across sites - Asynchronous replication planning |
| Topic 4: Security and Hardening | - Designing secure BCDR environments - Approval policies configuration - Security best practices for replication - RBAC implementation for disaster recovery |
| Topic 5: BCDR Fundamentals and Requirements Interpretation | - Translating business requirements into resilient recovery architectures - Availability metrics and SLA definitions - Selecting appropriate replication types (async, near-sync, synchronous, metro) - Understanding RTO and RPO concepts and business impact analysis - Defining recovery strategies aligned to business requirements and risk tolerance |
| Topic 6: Nutanix Disaster Recovery Solutions | - Recovery workflows using Nutanix native tools - Failover procedures and execution - Integration with third-party backup solutions - Configuring and managing replication policies - Metro Availability configuration and management |
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NEW QUESTION # 29
The Disaster Recovery dashboard in Prism Central shows that the protection domain is out of sync and new recovery points are no longer being created at the recovery site. No recent changes were made to the protection policy configuration or RPO settings. During initial troubleshooting, an administrator has observed the following:
* Production VMs are running normally at the primary site.
* The recovery cluster is reachable from Prism Central.
* No storage capacity alerts are seen on either cluster.
* A recent network change was implemented to enable network segmentation between clusters.
* New firewall rules were introduced recently as part of a security hardening effort.
Which action should the administrator take first when evaluating this issue?
Answer: A
Explanation:
Network segmentation is a powerful Nutanix feature used to isolate replication and storage traffic from standard management traffic. However, implementing this in a " brownfield " environment-where replication is already active-requires careful coordination. In this scenario, the replication failure coincides with the implementation of network segmentation and new firewall rules. The administrator ' s first action must be to verify if segmentation was enabled while replication was actively running. If segmentation is enabled on one site without a matching configuration on the remote cluster, or if the services (Cerebro
/Stargate) were not properly restarted to bind to the new interfaces, the replication stream will " hang " .
Furthermore, enabling segmentation changes the source and destination IP addresses used for replication traffic. If these new segmented IP addresses were not whitelisted in the recent firewall hardening effort, all " Snapshot-on-wire " traffic will be dropped. By verifying the segmentation state first, the administrator can determine if the network plumbing is consistent across both sites. Recreating policies (Option A) or triggering failover (Option C) would not resolve an underlying network isolation issue and would likely result in further failures until the segmentation and firewall rules are properly aligned.
NEW QUESTION # 30
How does the system behave if the network cannot sustain the data change rate required to maintain a 1- minute RPO between the primary and recovery AZs?
Answer: C
Explanation:
Nutanix NearSync replication is designed to provide very low RPOs (1 to 15 minutes) by using " Lightweight Snapshots " (LWS). To maintain a 1-minute RPO, the system requires sufficient network bandwidth to transfer the delta changes before the next snapshot interval begins.
If the network bandwidth is insufficient or if the VM ' s data change rate (churn) suddenly spikes beyond the network ' s capacity to keep up, the system is designed to prioritize protection over RPO strictness. In this scenario, the Nutanix Cerebro service will automatically " downshift " the replication from NearSync to standard Asynchronous replication mode. This transition allows the system to use more traditional, robust snapshots that can handle longer transfer times, ensuring that the VM remains protected, even if the RPO temporarily increases to an hourly interval. Once the network conditions improve or the data churn decreases, the system will automatically attempt to " upshift " back to the 1-minute NearSync schedule. This behavior prevents application performance issues like write-pausing (Option D) or I/O degradation (Option A) and avoids unnecessary failovers (Option C), providing a resilient and adaptive data protection mechanism.
NEW QUESTION # 31
A mission-critical VM utilizing an NVIDIA vGPU profile for high-end graphical processing is replicated from a primary Nutanix cluster to a secondary disaster recovery site. After failover of a VM using an NVIDIA vGPU profile, the VM boots but hardware acceleration does not function. What action is required?
Answer: B
Explanation:
Virtual GPUs (vGPUs) are hardware-dependent resources that are tied to specific physical GPU cards installed in the Nutanix nodes. While Nutanix Disaster Recovery can replicate the VM ' s virtual disks and general configuration, the specific mapping to a physical vGPU profile is often not automatically preserved across clusters due to potential differences in hardware availability or GPU generations at the recovery site.
When the VM fails over and boots up at the secondary site, the guest OS may see the NVIDIA driver but will find that the " backed " hardware resource is missing or incorrectly mapped, leading to a failure in hardware acceleration. To resolve this, the administrator must manually edit the VM ' s hardware settings at the recovery site and re-assign a compatible vGPU profile from the local cluster ' s available GPU resources. This post-failover cleanup task is essential for workloads like VDI (Virtual Desktop Infrastructure) or CAD applications that depend on GPU processing. Relying on NGT (Option A) or reinstalling the OS (Option B) will not fix the underlying missing hardware assignment in the hypervisor, highlighting the need for specialized knowledge when protecting VMs with specialized hardware pass-through or vGPU requirements.
NEW QUESTION # 32
An administrator is creating a recovery plan between two availability zones. The production VMs use a subnet that does not exist at the recovery AZ. To ensure the VMs can successfully connect after a failover, what must be configured?
Answer: D
Explanation:
When failing over a virtual machine between different physical locations or availability zones, it is common for the network topology at the recovery site to differ from the primary site. If a VM is recovered into a site where its original subnet is unavailable, it will lose connectivity.
To resolve this, Nutanix Recovery Plans include a " Network Mapping " section. The administrator must configure these mappings to explicitly define which production subnet at the source site corresponds to which valid subnet at the recovery site. During the failover process, the orchestrator uses this mapping to automatically re-configure the VM ' s virtual network interface (vNIC) to connect to the correct local VLAN or overlay network at the destination. While " matching subnet names " (Option D) can simplify management, it is not a requirement if the mapping is correctly defined. Synchronous replication (Option B) does not address the networking layer, as it is a storage-level feature. Network mapping is therefore the essential task for ensuring that workloads are not only recovered but also accessible following a failover.
NEW QUESTION # 33
An administrator has set up asynchronous replication between the Marseille and Paris clusters for the VMs in the FIN-PROD storage container. After a planned production failover from Paris to Marseille, the administrator noticed that the VMs were scattered across all the storage containers in the Marseille cluster.
Which statement is true regarding this scenario?
Answer: A
Explanation:
In modern Nutanix Disaster Recovery (using Prism Central-based Protection Policies), storage placement is often governed by Storage Policies rather than simple container-to-container mapping. Storage Policies use Nutanix Categories to determine where a VM should be placed to meet performance or compliance requirements. In this scenario, the VMs were successfully replicated and recovered, but they were placed in " all the storage containers " rather than the intended FIN-PROD container at the Marseille site. This indicates that while the data arrived, the " destination placement rules " were missing. If a storage policy was created on the Paris cluster to keep these VMs in FIN-PROD but that policy was not mirrored or assigned at the Marseille cluster, the system defaults to the Acropolis Dynamic Scheduler (ADS) placement. ADS will distribute the VMs across all available containers to balance load and capacity, leading to the " scattered " result observed. To resolve this and ensure consistent failover behavior, the administrator must ensure that both the categories and the corresponding storage policies are identical and active at both availability zones.
While a missing container (Option C) would typically cause a replication failure rather than scattered recovery, a missing storage policy specifically explains the lack of orchestrated placement during the failover event.
NEW QUESTION # 34
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