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| Section | Weight | Objectives |
|---|---|---|
| Troubleshoot BCDR Failures | 20% | - Fix third-party backup integration problems - Resolve storage and snapshot errors - Diagnose network-related replication failures - Resolve misconfigurations in DR environments - Troubleshoot replication and protection policy issues |
| Perform BCDR Operational Tasks | 25% | - Snapshot-based VM and volume recovery - Self-service restore operations - Execute failover and failback workflows - Migrate legacy protection domains to modern policies - Post-failover cleanup and re-protection |
| Interpret and Configure BCDR Requirements | 30% | - Configure snapshot policies and retention - Select replication types: Async, NearSync, Synchronous, Metro - Translate business requirements into RPO/RTO objectives - Create and configure recovery plans - Configure network and storage for BCDR - Design secure BCDR environments: segmentation, RBAC, approval policies - Determine prerequisites for BCDR configuration |
| Test BCDR Solutions | 25% | - Perform disaster recovery validation procedures - Verify site connectivity and replication throughput - Execute planned, unplanned, and test failovers - Validate recovery plan execution and outcomes |
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NEW QUESTION # 23
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?
Answer: C
Explanation:
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.
NEW QUESTION # 24
Which file system is supported on Linux VMs for Self-Service Restore?
Answer: D
Explanation:
Nutanix Self-Service Restore (SSR) allows end-users to recover files from snapshots without needing assistance from a cluster administrator. This functionality is enabled by Nutanix Guest Tools (NGT), which mounts a snapshot disk to the guest VM. For SSR to function, the Nutanix Guest Agent (NGA) must be able to recognize and mount the file systems present on the snapshots.
For Linux-based virtual machines, Nutanix SSR supports standard, modern journaling file systems. EXT4 is the most widely supported and common file system used across modern Linux distributions like RHEL, CentOS, and Ubuntu, and it is natively supported by the Nutanix SSR agent. While other file systems like XFS or older EXT versions might be supported by the OS itself, EXT4 is the primary validated target for SSR operations. NTFS (Option B) is primarily a Windows file system, though it can be mounted on Linux, it is not the native standard for Linux SSR. Supporting the native file system of the guest OS is critical because it ensures that file permissions and ownership (UID/GID) are preserved during the recovery process. This compatibility allows users to seamlessly mount the snapshot, navigate to the required directory, and restore deleted or corrupted files directly to their production environment.
NEW QUESTION # 25
An administrator notices that VM replication from ClusterA to ClusterB fails consistently at the same point during the replication job. The following observations are noted by the administrator:
* The Prism dashboard shows the replication job failing during snapshot creation.
* ClusterB storage pool and container usage is under 80%, well below capacity.
* Network latency/Pings between ClusterA and ClusterB averages 3ms, with occasional spikes to 25ms.
* VM event logs indicate frequent I/O timeout errors during the replication window.
* Both clusters are running compatible AOS versions.
What is the most likely cause for the failing replications?
Answer: B
Explanation:
Troubleshooting replication failures requires analyzing the relationship between snapshot creation and data transfer. In this scenario, the failure occurs during the snapshot creation phase rather than during the transfer of data across the wire. While network spikes and I/O timeouts are noted (Option D), these are often symptoms rather than the root cause when the specific failure point is the snapshot itself .
If multiple replication jobs or protection policies are scheduled to run at the exact same time, the cluster may experience " snapshot contention " or metadata locks. When schedules overlap significantly, the overhead on the Controller VMs (CVMs) can lead to the observed I/O timeout errors in the guest OS as the system struggles to quiesce applications and freeze the filesystem multiple times in quick succession. This is particularly common in environments with high data change rates where the previous replication cycle has not finished before the next one begins. Since storage is sufficient (Option B) and the clusters are compatible (Option E), the most logical cause is schedule misconfiguration. To resolve this, the administrator should stagger the start times of protection policies or combine multiple VMs into a single, unified policy to ensure that the Nutanix snapshot engine can process the requests sequentially without causing the resource exhaustion that leads to job failure.
NEW QUESTION # 26
Which statement describes the most efficient and least disruptive method to achieve a file-level recovery without rolling back the entire VM?
Answer: A
Explanation:
Nutanix offers several data recovery methods, but the objective of " least disruptive " and " most efficient " is specifically addressed by the Self-Service Restore (SSR) feature. SSR is powered by Nutanix Guest Tools (NGT), which must be installed on the virtual machine. This functionality allows a user or an administrator to mount a disk from a historical recovery point directly to the active, running virtual machine as a temporary drive.
Once the snapshot is mounted, the guest operating system treats it as a standard local disk, allowing the user to browse the folder structure and perform a surgical restore of only the specific files that were deleted or corrupted. This process avoids the significant overhead and downtime associated with rolling back the entire VM (Option B) or cloning the VM to a new entity (Option C), which would consume additional compute and storage resources. Option A refers to Nutanix Files (NAS) functionality, which is separate from the block- level VM snapshot recovery discussed here. By using SSR/NGT, the production environment remains online and undisturbed, and the recovery process is delegated to the level of individual files, providing the highest level of granularity and efficiency in typical day-to-day data loss scenarios.
NEW QUESTION # 27
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?
Answer: A
Explanation:
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.
NEW QUESTION # 28
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