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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Troubleshoot BCDR Failures | 20% | - Resolve misconfigurations in DR environments - Diagnose network-related replication failures - Fix third-party backup integration problems - Resolve storage and snapshot errors - Troubleshoot replication and protection policy issues |
| Topic 2: Interpret and Configure BCDR Requirements | 30% | - Design secure BCDR environments: segmentation, RBAC, approval policies - Translate business requirements into RPO/RTO objectives - Configure snapshot policies and retention - Create and configure recovery plans - Determine prerequisites for BCDR configuration - Select replication types: Async, NearSync, Synchronous, Metro - Configure network and storage for BCDR |
| Topic 3: Perform BCDR Operational Tasks | 25% | - Post-failover cleanup and re-protection - Migrate legacy protection domains to modern policies - Self-service restore operations - Snapshot-based VM and volume recovery - Execute failover and failback workflows |
| Topic 4: Test BCDR Solutions | 25% | - Execute planned, unplanned, and test failovers - Perform disaster recovery validation procedures - Validate recovery plan execution and outcomes - Verify site connectivity and replication throughput |
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NEW QUESTION # 63
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: D
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 # 64
An administrator executes an Unplanned Failover. The VMs recover at the Recovery Site and are powered on.
However, the application owners report that the VMs are completely isolated and cannot communicate with any other services on the network. The administrator checks the Recovery Plan and notices the Network Mapping section was left blank.
What is the expected configuration for VMs recovered without a valid Network Mapping?
Answer: D
Explanation:
In the Nutanix Disaster Recovery orchestration workflow, Network Mapping is a critical step that tells the system which production VLAN at the primary site corresponds to which VLAN at the recovery site. This ensures that when a VM is recovered, its virtual NIC (vNIC) is " plugged in " to a functional and valid network at the new location.
If an administrator leaves the Network Mapping section blank, the Nutanix orchestrator has no information about where to connect the VM ' s network interface. In this scenario, the priority of the system is to ensure the VM can boot and start its services without causing a " network storm " or security risk. If the system were to simply attach the VM to a random or default network, it could cause IP address conflicts or expose the VM to the wrong security zone. Therefore, the built-in behavior for a failover without a valid mapping is to recover the VM with all its network adapters in a " disconnected " state. The vNIC still exists on the VM, but the " connected " checkbox in the hypervisor is unchecked. This explains why the application owners report that the VMs are " isolated. " To fix this, the administrator must either update the Recovery Plan with the correct mappings and re-run the task or manually connect each VM ' s vNIC to the correct local VLAN in the recovery site ' s Prism interface.
NEW QUESTION # 65
An administrator performed an unplanned failover from AZ1 (primary) to AZ2 (recovery). Later, AZ1 is restored and the administrator wants to fail back the entities to AZ1. Which two statements are correct?
(Choose two.)
Answer: B,C
Explanation:
Nutanix Disaster Recovery is designed to be bi-directional, supporting both failover and failback . In an unplanned failover, the primary site (AZ1) is assumed to have crashed. Once AZ1 is brought back online, the system must synchronize any data changes that occurred while the VMs were running at AZ2.
Statement C is correct because once the VMs are powered on at AZ2, the Nutanix Cerebro service automatically reverses the protection policy. New recovery points are created at AZ2 and replicated back to AZ1. For a successful, modern failback with zero data loss from the cloud session, the administrator must wait for these recovery points to replicate back to AZ1 before initiating the failback.
Statement B is also correct and describes a specific " recovery of last resort " scenario. If AZ1 is restored but connectivity to AZ2 is permanently lost (e.g., the cloud provider has an issue), an administrator can still " Unplanned Failover " back to AZ1 using the historical snapshots that existed locally on AZ1 before the original outage. This would result in data loss equal to the time the VMs were running at AZ2, but it allows for service restoration when the recovery site itself fails. These two statements highlight the flexibility of the Nutanix DR architecture in handling both controlled failback and emergency local restoration.
NEW QUESTION # 66
An administrator previously configured Synchronous Replication on a VM named MarketVM. Due to upcoming maintenance at the primary site, it was decided to use Cross Cluster Live Migration (CCLM) to move the VM to the secondary site. When running CCLM, the task failed. What is a possible reason for this CCLM failure?
Answer: D
Explanation:
Cross-Cluster Live Migration (CCLM) is an advanced feature that allows a running VM to move between two clusters without downtime, provided they are linked by synchronous replication. However, CCLM has specific technical prerequisites and limitations regarding the VM ' s hardware configuration. One of the primary constraints in many Nutanix versions is the support for specific disk controllers.
In many CCLM implementations, the migration engine requires the VM to use modern VirtIO controllers for its disks to ensure that the memory-state transfer and storage-handoff can occur seamlessly across clusters. If MarketVM was configured with legacy SCSI controllers (or certain types of shared disks), the migration task might fail during the validation phase. While storage capacity (Option B) and bandwidth (Option C) are essential for general replication, they would typically prevent the " Synchronous " status from being achieved in the first place, rather than failing a CCLM task specifically. Memory overcommit (Option D) is generally handled by the hypervisor and would not inherently block the migration unless the destination host had zero available physical memory. Troubleshooting CCLM requires an administrator to audit the VM ' s virtual hardware against the supported Nutanix compatibility matrix to ensure all components are eligible for live cross-site movement.
NEW QUESTION # 67
A VM is configured with a 5-minute Nearsync RPO. After several hours, replication transitions back to hourly RPO. Alerts indicate the minute schedule cannot be maintained. What is the most likely root cause?
Answer: A
Explanation:
Nutanix NearSync replication uses Lightweight Snapshots (LWS) to achieve RPOs as low as 1 minute. To maintain this aggressive schedule, the system must be able to replicate all the " delta " changes (the data that has changed since the last snapshot) within the RPO window. If the data change rate (churn) of the VM increases, or if the available network bandwidth decreases, the system may find that it cannot complete the replication of one LWS before the next one is due.
When the Nutanix Cerebro service detects that it is consistently missing its NearSync target, it will automatically " downshift " the replication to a standard Asynchronous schedule (typically hourly) to ensure that the VM remains protected at a manageable frequency. This is a self-healing mechanism designed to prevent replication jobs from stacking up and causing cluster instability. Insufficient bandwidth (Option D) is the most common cause for this downshift, as the " Snapshot-on-wire " cannot be moved fast enough to satisfy the 5-minute requirement. While high RTT (Option A) is a requirement for Synchronous replication, NearSync is designed to handle higher latencies (up to 80ms or more), making bandwidth the primary bottleneck in these troubleshooting scenarios.
NEW QUESTION # 68
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