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| Section | Weight | Objectives |
|---|---|---|
| Perform BCDR Operational Tasks | 25% | - Post-failover cleanup and re-protection - Snapshot-based VM and volume recovery - Execute failover and failback workflows - Self-service restore operations - Migrate legacy protection domains to modern policies |
| Interpret and Configure BCDR Requirements | 30% | - Create and configure recovery plans - Translate business requirements into RPO/RTO objectives - Configure snapshot policies and retention - Design secure BCDR environments: segmentation, RBAC, approval policies - Configure network and storage for BCDR - Determine prerequisites for BCDR configuration - Select replication types: Async, NearSync, Synchronous, Metro |
| 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 |
| Troubleshoot BCDR Failures | 20% | - Fix third-party backup integration problems - Resolve storage and snapshot errors - Diagnose network-related replication failures - Troubleshoot replication and protection policy issues - Resolve misconfigurations in DR environments |
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質問 # 31
Which combination of Replication Schedules within the same Recovery Plan will cause the recovery to fail?
正解：B
解説：
A Recovery Plan in Nutanix is the orchestration engine that defines the power-on sequence, network mappings, and script execution for disaster recovery. While a single cluster can support various types of replication-Asynchronous, NearSync, and Synchronous-there are strict architectural limits on how these can be mixed within a single automated plan.
The primary conflict arises when mixing Synchronous (0 RPO) schedules with snapshot-based Asynchronous or NearSync schedules. Synchronous replication is an " Active-Standby " or " Active-Active " storage state where the destination site already has the data in a " mounted " but inactive container. In contrast, Asynchronous and NearSync recovery involve " restoring " a VM from a specific recovery point (snapshot), which includes registering the VM and attaching the disks during the failover process. Because the orchestration logic for a Zero-RPO synchronous failover is fundamentally different from a snapshot restoration, Nutanix prevents placing them in the same Recovery Plan. Attempting to do so will cause validation errors and lead to execution failure, as the orchestrator cannot simultaneously manage real-time failover and snapshot-based restoration for the same logical group. To successfully protect an environment with both types of RPO requirements, administrators must create separate Recovery Plans: one dedicated to Synchronous workloads and another for snapshot-based Asynchronous/NearSync workloads, ensuring that each set of VMs follows its appropriate recovery workflow.
質問 # 32
A Nutanix protection policy is configured with:
* RPO: 1 hour,
* Retention period: 5 days,
* Retention type: Roll-up.
After six days of continuous operation, approximately how many hourly recovery points will still be available for restores for the most recent 24-hour period?
正解：C
解説：
Nutanix uses a " Roll-up " retention strategy to optimize storage while maintaining a range of recovery options. This strategy keeps all high-frequency recovery points for the most recent period and then consolidates (rolls up) older snapshots into daily or weekly points as they age.
For a policy with a 1-hour RPO and 5-day retention, the system is designed to provide granular recovery for the immediate past. By default, Nutanix retention logic maintains the hourly snapshots for the current 24-hour window. As snapshots move past the 24-hour mark, they are " rolled up " into a single daily snapshot to save space while still providing a 5-day historical view. Therefore, after six days of operation, the administrator will find approximately 24 hourly recovery points for the most recent 24 hours, followed by several daily recovery points representing the previous four days. This approach balances the need for surgical " point-in- time " recovery (to combat recent data corruption or ransomware) with the need for long-term historical data, ensuring that the BCDR solution is both effective and storage-efficient.
質問 # 33
An administrator is concerned about the operational overhead of manually creating and managing categories across both the primary and recovery sites to ensure Recovery Plans function correctly during failover and failback. What Nutanix Disaster Recovery behavior minimizes this concern?
正解：A
解説：
Nutanix Disaster Recovery (formerly known as Leap) utilizes Prism Central-based " Categories " to group virtual machines for protection. These categories are used within Protection Policies to determine replication schedules and within Recovery Plans to determine power-on sequences and network mappings. A common operational concern is the need to manually replicate these category definitions across different availability zones (AZs).
To reduce this operational overhead, Nutanix has implemented an automatic synchronization mechanism.
When an administrator creates a Recovery Plan in Prism Central and specifies certain categories for failover, the system automatically synchronizes the definition and metadata of those categories to the paired recovery AZ. This ensures that if the primary Prism Central instance becomes unavailable, the recovery site already possesses the necessary grouping logic to identify and recover the correct virtual machines . This " policy- driven " approach ensures consistency across sites and eliminates the risk of human error associated with manual configuration (Option B). By automating the lifecycle of categories between paired sites, Nutanix ensures that the disaster recovery environment is always aligned with the production environment, allowing for seamless failover and failback operations without the need for repetitive administrative tasks.
質問 # 34
After performing a failover of encrypted AHV VMs from an on-premises AZ to a recovery AZ, an administrator notices that newly written data is not encrypted. Which post-failover cleanup task must be performed to correct this issue?
正解：D
解説：
Nutanix supports software-based data-at-rest encryption for AHV workloads. This encryption is typically managed through " Storage Policies " in Prism Central, which are applied to virtual machines based on their " Categories " . For example, a policy might state that any VM in the Compliance:Encrypted category must have its data encrypted on the disk.
When a failover occurs, the VM moves to the recovery cluster. While the data that was replicated is already encrypted, the " Active " Storage Policy at the recovery site must be verified. If the recovery cluster does not have the same Storage Policy configuration or if the VM-to-Policy association was lost during the transition, the AOS storage engine at the recovery site will treat the VM as a standard, non-encrypted workload. This results in " newly written data " (writes occurring after the failover) being stored in plain text. To fix this, the administrator must " reassign " or refresh the Storage Policies and Categories at the recovery site. This ensures that the encryption rules are actively enforced on the new cluster, maintaining the organization ' s security posture post-disaster. This cleanup step is vital for compliance-heavy environments where encryption- at-rest is a mandatory requirement.
質問 # 35
A VM is protected in an Async Protection Policy with a schedule for every 1 hour. The replications are completing successfully every hour. The VM hosts a critical application and cannot afford any data loss. The administrator unprotects the VM from the Async Policy and protects the VM in a Synchronous policy. The administrator also notices that the VM is not entering the " Sync " state and is stuck in syncing for a long time. The administrator notices the error in the logs:
Enabling stretch for entity TestVM failed while notifying vm service due to error Acropolis failed to handle VmSyncRepEnable request for VM TestVM Failed to connect to remote Anduril What port needs to be allowed between the clusters to fix the issue?
正解：A
解説：
In a Nutanix environment, Synchronous replication (including Metro Availability and Synchronous Protection Policies) relies on a specialized service known as Anduril to manage the real-time mirroring and state transitions of virtual machines. While standard asynchronous replication primarily uses ports 2009 (Stargate) for data transfer and 2020 (Cerebro) for metadata and replication management, synchronous replication introduces additional requirements for low-latency communication between the Anduril services on the source and destination clusters.
The error message " Failed to connect to remote Anduril " specifically indicates that the local cluster ' s management plane is unable to communicate with the remote cluster ' s synchronous replication manager.
TCP port 2036 is the dedicated port for cross-cluster communication between Anduril services. This port is used to negotiate the " stretch " of the VM across sites, coordinate the initial sync, and maintain the health heartbeat required for high-availability failover decisions. If port 2036 is blocked by a physical or virtual firewall between the clusters, the " VmSyncRepEnable " request will time out or fail, preventing the VM from ever entering the " Sync " (Active-Active) state. Troubleshooting synchronous replication always begins with verifying that the 5ms latency requirement is met and that port 2036 is open alongside the standard ports 2009 and 2020 to ensure both data and control traffic can flow without interruption between availability zones.
質問 # 36
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