NCP-BC-7.5試験の準備は大変ですか？復習も大変でしょう？多くの知識を暗記するのが無理でしょう？今我々は便利なNutanixオンライン版を提供します。安全問題を心配する必要がなく、Windows/Mac/Android/iOS対応で、繰り返してNCP-BC-7.5模擬試験をして暗記のが簡単になります。
| Section | Objectives |
|---|---|
| Topic 1: Replication and Failover Architecture | - Network segmentation for BCDR environments - Asynchronous replication planning - Failover readiness validation - Recovery site capacity management - Synchronous replication across sites |
| Topic 2: Monitoring, Testing and Troubleshooting | - Non-disruptive recovery testing - Setting up alerts for replication lag - Diagnosing network, storage and replication failures - Documenting runbooks for incident response - Troubleshooting permission issues and misconfigured DR environments - Resolving third-party backup integration problems |
| Topic 3: Nutanix Disaster Recovery Solutions | - Configuring and managing replication policies - Integration with third-party backup solutions - Metro Availability configuration and management - Failover procedures and execution - Recovery workflows using Nutanix native tools |
| Topic 4: Data Protection and Snapshots | - Storage configuration for BCDR - Snapshot retention policies design - Snapshot scheduling and management - Incremental backup implementation - Data restoration at VM and application level |
| Topic 5: BCDR Fundamentals and Requirements Interpretation | - Defining recovery strategies aligned to business requirements and risk tolerance - Translating business requirements into resilient recovery architectures - Availability metrics and SLA definitions - Understanding RTO and RPO concepts and business impact analysis - Selecting appropriate replication types (async, near-sync, synchronous, metro) |
| Topic 6: Security and Hardening | - Security best practices for replication - Approval policies configuration - RBAC implementation for disaster recovery - Designing secure BCDR environments |
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質問 # 37
Which two VM disk types does Self-Service restore support? (Choose two.)
正解：B、D
解説：
Self-Service Restore (SSR) relies on the Nutanix Guest Tools (NGT) agent to mount a historical snapshot disk to the guest OS via the hypervisor ' s virtual controller. For this to work seamlessly, the guest OS and the NGT agent must support the virtual bus types used by the virtual machine.
Nutanix SSR natively supports the two most common virtual disk controller types: SCSI (VirtIO) and IDE.
These are the standard formats for most virtual disks in Nutanix AHV and ESXi environments. When a user requests a file-level restore, the system takes the vDisk from the recovery point and attaches it as a new SCSI or IDE device to the running VM, which the guest OS then scans and mounts. Conversely, specialized storage entities like Volume Groups (VGs) (Option D) and certain high-performance direct-attached PCI-based storage (Option C) are not supported by the standard SSR workflow. Volume Groups, which are often used for shared storage between VMs (like SQL Clusters), require a different recovery method because they are not part of the standard VM-centric snapshot metadata that the SSR agent can browse. Therefore, SSR is primarily designed for the standard virtual disks that form the OS and application drives of typical virtualized workloads.
質問 # 38
What must the maximum Round Trip Latency be less than between a Witness VM and Metro Availability PDs?
正解：D
解説：
Nutanix Metro Availability is a continuous availability solution that provides a zero Recovery Point Objective (RPO) and near-zero Recovery Time Objective (RTO) across two sites. For this configuration, there are two distinct latency requirements that administrators must manage. First, the Round Trip Time (RTT) latency between the two storage clusters participating in the synchronous replication must be less than 5ms to ensure application performance is not significantly degraded by the write-synchronization process. Second, the Witness VM, which acts as an external arbitrator to prevent " split-brain " scenarios during a site failure, has a more flexible latency requirement. The maximum RTT between the Witness VM and the managed Protection Domains (PDs) must be less than 200ms. This higher threshold allows the Witness to be placed in a separate geographical region or a third-party cloud availability zone (AZ), ensuring it remains independent of the failure domain affecting the primary and secondary sites. If the latency to the Witness exceeds 200ms, the cluster may be unable to quickly acquire the lock necessary to automate failover, potentially causing the Metro Availability configuration to fail during an actual disaster event.
質問 # 39
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?
正解：A
解説：
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.
質問 # 40
An administrator intends to configure a NearSync replication schedule with a 15-minute Recovery Point Objective (RPO) on a hybrid 3-node cluster. The current nodes in the cluster are configured with one SSD and four HDDs each. Which cost-effective modification is required to support this specific replication schedule?
正解：D
解説：
Nutanix NearSync replication provides low RPOs (1 to 15 minutes) by using " Lightweight Snapshots " (LWS). NearSync has higher performance and hardware requirements than standard Asynchronous replication because it must handle metadata operations and data transfers much more frequently.
For a cluster to support NearSync, it must have sufficient high-performance storage to handle the additional I
/O load associated with LWS. On hybrid nodes (those with both SSDs and HDDs), Nutanix has a specific hardware requirement: each node must have at least two SSDs. This is because the NearSync LWS metadata and incoming replicated data are initially written to the SSD tier to ensure low latency and high throughput. A single SSD per node is typically insufficient to handle both active VM production I/O and the high-frequency NearSync overhead without performance degradation. Therefore, adding a second SSD to each node (Option D) is the mandatory modification. While upgrading to NVMe (Option A) or adding more nodes (Option B) would also improve performance, adding a second SSD is the minimum " cost-effective " requirement specified by Nutanix engineering for NearSync support on hybrid clusters. Meeting these hardware prerequisites is essential to ensure that the cluster can maintain the 15-minute RPO without transitioning back to an hourly schedule due to resource constraints.
質問 # 41
A Protection Domain exists with a VM, but no new snapshots are being created and replication never starts.
Which is the most likely DR setup issue?
正解：B
解説：
In a Nutanix legacy Protection Domain (PD) configuration, three primary elements must be in place for data protection to occur: the entities (VMs), the remote site (destination), and the schedule. Even if a VM has been added to a Protection Domain (negating Option A), the cluster will not take any action unless it is explicitly told " when " and " how often " to do so.
If no new snapshots are being created locally and replication is not starting, the most likely issue is that no " Schedule " has been configured for that Protection Domain. The schedule defines the RPO (e.g., hourly, daily) and the retention period for the snapshots. Without an active schedule, the Cerebro service simply has no instruction to initiate the snapshot process. While a missing vStore mapping (Option C) would cause the " replication " to fail, the " local snapshots " would still be created in the PD. Similarly, low bandwidth throttling (Option D) would cause the replication to move slowly or time out, but it would not prevent the initial creation of the local recovery points. Therefore, verifying the presence of a valid, active replication schedule is the mandatory first step for an administrator when a Protection Domain appears to be " idle " despite having VMs assigned to it.
質問 # 42
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