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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Test BCDR Solutions | 25% | - Verify site connectivity and replication throughput - Validate recovery plan execution and outcomes - Perform disaster recovery validation procedures - Execute planned, unplanned, and test failovers |
| Topic 2: Interpret and Configure BCDR Requirements | 30% | - Configure snapshot policies and retention - Configure network and storage for BCDR - Create and configure recovery plans - Translate business requirements into RPO/RTO objectives - Determine prerequisites for BCDR configuration - Select replication types: Async, NearSync, Synchronous, Metro - Design secure BCDR environments: segmentation, RBAC, approval policies |
| Topic 3: Perform BCDR Operational Tasks | 25% | - Snapshot-based VM and volume recovery - Migrate legacy protection domains to modern policies - Execute failover and failback workflows - Post-failover cleanup and re-protection - Self-service restore operations |
| Topic 4: Troubleshoot BCDR Failures | 20% | - Diagnose network-related replication failures - Troubleshoot replication and protection policy issues - Resolve misconfigurations in DR environments - Resolve storage and snapshot errors - Fix third-party backup integration problems |
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NEW QUESTION # 76
An administrator recently expanded a Nutanix cluster by adding several new nodes. Shortly after, multiple backup jobs began failing. The following error is consistently reported: " Failed to perform backup: Cannot complete process ' iscsiadm --mode discovery --type sendtargets --portal X.X.X.X ' within timeout " . What is the most likely cause of the failure?
Answer: C
Explanation:
Nutanix storage is often accessed by external backup solutions (like Veeam, Commvault, or HYCU) using the iSCSI protocol. This allows the backup server to mount snapshots and read data directly from the storage tier.
The error message " iscsiadm... discovery... timeout " specifically indicates that the backup server ' s iSCSI initiator is unable to communicate with the Nutanix Data Services IP or the Controller VMs (CVMs) over the network.
When a Nutanix cluster is expanded, it is essential that all networking and firewall configurations applied to the existing nodes are also applied to the new nodes. The iSCSI protocol relies on specific TCP ports: port
3260 is the standard port for iSCSI traffic, and port 3205 is often used for iSCSI discovery and metadata operations within Nutanix. If these ports are not open in the physical firewall or the host-based security rules for the newly added nodes, the backup server will be unable to discover the targets on those specific nodes, leading to the timeout errors . This highlights a common " Day 2 " operational trap: cluster expansion requires careful auditing of network security groups and firewall whitelists to ensure that external integrations- especially BCDR and backup services-continue to have uninterrupted access to the expanded storage fabric.
Verifying and opening ports 3205 and 3260 for the new node IPs is the first step to resolving this timeout issue.
NEW QUESTION # 77
An administrator builds a single recovery plan that includes workloads protected with Asynchronous (async) and Nearsync replication schedules together with workloads protected by Synchronous replication (syncrep) schedules. Which statement is true regarding this configuration?
Answer: A
Explanation:
Nutanix Recovery Plans are designed to orchestrate the failover of complex applications that may consist of multiple virtual machines with different protection requirements. However, there are rules regarding which types of replication schedules can be mixed within a single plan.
Nutanix supports mixing Asynchronous and NearSync replication schedules within the same Recovery Plan.
This is because both Async and NearSync are fundamentally snapshot-based, " passive " recovery models where the system pulls from recovery points stored at the destination cluster. However, the system generally restricts or warns against mixing Synchronous replication with other types in a single orchestrated plan.
Synchronous replication (syncrep) is an " active-active " or " stretched " model that behaves differently during a failover compared to snapshot-based models. In some software versions, including entities protected by synchronous schedules with those on async/nearsync within a single plan can cause the failover task to fail validation because the orchestration logic for zero-RPO failover is distinct from snapshot restoration.
Therefore, while mixing Async and NearSync is a supported and common practice, administrators must be cautious with Synchronous workloads.
NEW QUESTION # 78
An administrator is troubleshooting a hung replication. When checking the replication status, the complete percent and bytes completed do not increase. The administrator checks the Stargate logs on the destination cluster and confirms the writes are failing with " nfs status 28 " . Checking the container info on the destination cluster, free space on the container is 0. The administrator confirms that there is sufficient space available in the storage pool. What could be the reason for free space on the container to be 0?
Answer: A
Explanation:
In a Nutanix environment, " Advertised Capacity " is a logical limit (a quota) that an administrator can set on a specific storage container. Even if the physical storage pool has terabytes of free space, if a container ' s advertised capacity is reached, the hypervisor and the Nutanix services will perceive the container as being
100% full.
In this troubleshooting scenario, the " nfs status 28 " error code is a standard indicator for " No space left on device " . Since the administrator confirmed the pool is healthy, the logical limit on the container is the only remaining bottleneck. Replication jobs will " hang " because the destination Stargate service cannot write the incoming data blocks to a container that reports zero free space. To resolve this, the administrator must either increase the advertised capacity value in Prism or remove the limit entirely to allow the container to consume the available physical space in the pool. This highlights a common configuration " trap " where logical quotas-intended for multi-tenant management-can inadvertently block critical BCDR processes like replication if not monitored or sized correctly according to the protected VM growth.
NEW QUESTION # 79
Which ports must remain open to support replication between two Prism Element clusters?
Answer: A
Explanation:
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.
NEW QUESTION # 80
An administrator enables network segmentation for Disaster Recovery on a primary cluster to isolate replication traffic. The primary and recovery clusters are in a " brownfield " configuration, meaning the recovery cluster does not yet have network segmentation enabled.
How is the configuration of the recovery cluster handled in this scenario?
Answer: B
Explanation:
Network segmentation in a Nutanix cluster allows for the physical or logical isolation of different types of traffic (management, storage, and backplane). When applied to Disaster Recovery, it allows an administrator to dedicate a specific network interface (typically ntnx0) and a dedicated subnet for replication traffic, ensuring it does not contend with VM or management traffic for bandwidth.
However, Disaster Recovery is a site-to-site operation that requires a symmetric network configuration. If an administrator enables segmentation on the primary cluster, the Cerebro service at that site will now attempt to originate and receive all replication traffic on the newly defined segmented IP addresses. If the recovery cluster is still in its original " brownfield " state without segmentation, it will be looking for traffic on its management IP addresses (on eth0). This creates a mismatch where the two sites are effectively " speaking different languages " or looking for each other on the wrong networks. Nutanix does not automatically propagate segmentation settings between clusters because each site may have different physical network topologies or VLAN requirements. Therefore, the administrator must manually enable and configure network segmentation on the recovery cluster to match the primary. Only when both sites have consistent segmented interfaces and the routing/firewall rules are updated to allow communication between these new subnets will the replication link be restored and functional.
NEW QUESTION # 81
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