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| Section | Objectives |
|---|---|
| Monitoring, Testing and Troubleshooting | - Non-disruptive recovery testing - Troubleshooting permission issues and misconfigured DR environments - Resolving third-party backup integration problems - Setting up alerts for replication lag - Diagnosing network, storage and replication failures - Documenting runbooks for incident response |
| Nutanix Disaster Recovery Solutions | - Recovery workflows using Nutanix native tools - Metro Availability configuration and management - Failover procedures and execution - Integration with third-party backup solutions - Configuring and managing replication policies |
| Replication and Failover Architecture | - Network segmentation for BCDR environments - Synchronous replication across sites - Recovery site capacity management - Asynchronous replication planning - Failover readiness validation |
| Data Protection and Snapshots | - Data restoration at VM and application level - Storage configuration for BCDR - Incremental backup implementation - Snapshot scheduling and management - Snapshot retention policies design |
| BCDR Fundamentals and Requirements Interpretation | - Understanding RTO and RPO concepts and business impact analysis - Selecting appropriate replication types (async, near-sync, synchronous, metro) - Availability metrics and SLA definitions - Translating business requirements into resilient recovery architectures - Defining recovery strategies aligned to business requirements and risk tolerance |
| Security and Hardening | - RBAC implementation for disaster recovery - Security best practices for replication - Designing secure BCDR environments - Approval policies configuration |
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NEW QUESTION # 99
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 # 100
An administrator wants to protect the snapshots created on the cluster. Only authorized users should be allowed to modify or delete the snapshots on the cluster. How can the administrator harden the security of the snapshots?
Answer: B
Explanation:
Hardening a Nutanix cluster for Business Continuity involves implementing security controls that protect recovery data from unauthorized destruction. In many modern cyberattacks, specifically ransomware, the goal is not just to encrypt production data but also to delete the snapshots and backups that would allow for recovery. To satisfy the requirement that only authorized modifications occur, the administrator must move beyond simple Role-Based Access Control (RBAC) and implement an " Approval Policy " .
The Approval Policy feature in Prism Central forces a secondary layer of validation for sensitive operations like snapshot deletion. When a user tries to delete a recovery point, the Nutanix orchestration engine captures the request and holds it in a " Pending " state. The request must be reviewed and approved by a designated person with approval authority. This ensures that even if an administrator ' s account is compromised, the attacker cannot immediately wipe out the snapshots needed to restore the environment. This " multi-person control " is a recognized security best practice for protecting mission-critical data. While cluster lockdown (Option C) prevents unauthorized SSH access, it does not manage the logical management of data through the Prism UI. An Approval Policy provides the specific " modification and deletion " control requested, ensuring that the cluster ' s recovery points remain a reliable " source of truth " following a security incident or administrative error.
NEW QUESTION # 101
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 # 102
Which port needs to be opened between two Prism Centrals to ensure a successful AZ pairing?
Answer: D
Explanation:
Disaster recovery orchestration in the Nutanix environment often involves the pairing of two separate Availability Zones (AZs), each managed by its own Prism Central instance. For these two management planes to communicate, exchange metadata, and synchronize Protection Policies and Recovery Plans, specific firewall ports must be open between them.
Port 9440 is the standard port used for all Prism Central and Prism Element web interface and API traffic.
During the AZ pairing process, the primary Prism Central must reach the recovery Prism Central ' s API to establish the trust relationship and pair the sites. Other ports mentioned, such as 2009 (Option A) and 2020 (Option B), are used for data replication between Controller VMs (CVMs) but are not used for the initial management-plane pairing between Prism Central instances. Port 2074 (Option C) is typically used for Nutanix Guest Tools (NGT) communication with the cluster. Therefore, ensuring port 9440 is open between the two Prism Central instances is a mandatory prerequisite for successful disaster recovery site pairing.
NEW QUESTION # 103
A company is recovering a 3-tier application (Database, Middleware, Web). The administrator executes the Recovery Plan. The Web tier VMs start up but applications immediately crash because they cannot connect to the Database tier. Which setting in the Recovery Plan should the administrator have configured to prevent this execution failure?
Answer: B
Explanation:
Orchestrating the recovery of multi-tier applications requires more than just powering on virtual machines; it requires managing the dependencies between application layers. In a standard 3-tier architecture, the Middleware and Web tiers typically depend on the Database being fully operational and ready to accept connections before they can successfully initialize. If a Recovery Plan powers on all tiers too quickly or simultaneously, the " upstream " services will fail to find their database backend, leading to the application crashes described in the scenario.
The Nutanix Recovery Plan provides " execution stages " to handle this boot ordering. However, even if tiers are in separate stages, a VM reaching a " Power On " state in the hypervisor does not mean the application services (like SQL or Oracle) are fully booted and ready for traffic. To address this, the administrator should configure " optional inter-stage delays " . This setting allows the administrator to define a specific wait time (in seconds) between the completion of one stage (e.g., Database power-on) and the start of the next (e.g., Middleware power-on). This delay gives the database engine enough time to finish its internal checks, mount its databases, and open its network ports. By incorporating these surgical delays, the administrator ensures a reliable, automated recovery where each tier only attempts to start once its required dependencies are fully operational at the destination site.
NEW QUESTION # 104
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