Nutanix NCA Practice Test Questions and Exam Dumps Part20 Q381-400

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Question 381.

An administrator plans to add nodes to an existing Nutanix cluster because compute and storage demand has increased. What should be verified before beginning the expansion?

  1. Cluster health, compatibility, and expansion prerequisites
    2. Every VM has the same amount of memory
    3. All VM names use the same prefix
    4. Every workload is powered off

Correct Answer: 1

Explanation:

Before expanding a Nutanix cluster, the administrator should verify cluster health and confirm that the planned nodes and configuration meet supported compatibility and expansion requirements. Existing alerts or health problems should be investigated before introducing additional infrastructure. Cluster expansion is intended to increase available resources without requiring all virtual machines to use identical configurations or necessarily be powered off. Performing appropriate prechecks helps reduce operational risk and establishes a healthy baseline before the environment is changed.

Question 382.

What is a primary benefit of adding supported nodes to an existing Nutanix cluster?

  1. It automatically deletes unused VMs.
    2. It can increase available cluster compute and storage resources.
    3. It eliminates the need for monitoring.
    4. It converts all VMs into physical servers.

Correct Answer: 2

Explanation:

Adding supported nodes can increase the resources available to the Nutanix cluster. Depending on the node configuration, expansion can provide additional compute, storage, or both, allowing the environment to accommodate workload growth. Administrators should evaluate current utilization and expected demand before expanding the cluster and follow the supported expansion procedure. Adding nodes does not automatically delete workloads, eliminate monitoring requirements, or convert virtual machines into physical systems. Cluster expansion is primarily a method of scaling infrastructure capacity as requirements grow.

Question 383.

An administrator wants to identify VMs belonging to the production environment without relying only on VM names. Which capability can help?

  1. Foundation
    2. Controller VM
    3. Categories or workload classification metadata
    4. NCC

Correct Answer: 3

Explanation:

Categories or similar workload classification metadata can be used to logically identify VMs according to attributes such as environment, application, department, or business function. This makes it easier to organize and locate resources in environments containing many workloads. Relying only on VM names can become difficult as the environment grows. Foundation supports infrastructure deployment, Controller VMs provide distributed platform services, and NCC performs health and configuration checks. These components do not primarily provide logical workload classification.

Question 384.

A junior administrator needs permission to monitor VMs but should not be able to perform unrestricted infrastructure changes. What should be configured?

  1. A shared full-administrator account
    2. Disabled authentication
    3. Full privileges on every cluster
    4. An appropriate role with limited permissions

Correct Answer: 4

Explanation:

An appropriate role should provide only the permissions required for the administrator’s responsibilities. This follows the principle of least privilege and reduces the risk of unauthorized or accidental changes. If the user’s responsibility is primarily monitoring, unrestricted infrastructure privileges are unnecessary. Shared administrator accounts also reduce accountability because actions cannot easily be associated with a specific user. Role-based access enables organizations to separate responsibilities while still providing users with the management capabilities necessary to perform their assigned tasks.

Question 385.

Which Nutanix architecture concept helps keep workload data close to the compute resource using it when practical?

  1. Data locality
    2. Foundation imaging
    3. Role-based access control
    4. VM naming

Correct Answer: 1

Explanation:

Data locality is an important concept in distributed Nutanix architecture. The platform can optimize access by keeping or serving data in relation to the compute resources consuming it, while the distributed storage system maintains the required resiliency and availability characteristics. This helps reduce unnecessary dependence on centralized storage architecture. Foundation imaging is associated with deployment, role-based access control governs administrative permissions, and VM naming is an organizational convention. None of those alternatives describes the relationship between workload compute and data placement.

Question 386.

An administrator needs to find a specific VM among hundreds of managed workloads. Which approach is most efficient?

  1. Open every VM individually.
    2. Use available search and filtering capabilities in the management interface.
    3. Restart Prism Central.
    4. Run Foundation against the cluster.

Correct Answer: 2

Explanation:

Search and filtering capabilities provide an efficient way to locate specific resources in environments containing large numbers of managed entities. Administrators can use identifying information and available classifications to narrow the displayed resources rather than manually examining every VM. Restarting management components does not improve resource identification, while Foundation is used primarily for initial infrastructure deployment and node imaging. Effective use of management-interface search and filtering features reduces administrative effort and makes large virtual environments easier to navigate.

Question 387.

A VM has two virtual NICs that must connect to two different logical networks. What should the administrator configure?

  1. Both NICs must always use the same network.
    2. Replace both NICs with a virtual disk.
    3. Assign each virtual NIC to the required network or subnet.
    4. Reimage the VM host.

Correct Answer: 3

Explanation:

Each virtual network interface can be configured according to the workload’s networking requirements. If a VM needs connectivity to two different logical networks, the administrator can assign the appropriate virtual NIC to each required network or subnet. Guest operating system networking must also be configured appropriately. A virtual disk cannot replace a network interface, and reimaging the host is unrelated to VM network assignment. Multiple virtual NICs allow workloads to participate in different network segments when the application architecture requires that configuration.

Question 388.

An administrator wants to understand how much data a storage workload transfers over time. Which type of metric is most relevant?

  1. VM name length
    2. Number of management users
    3. Physical rack height
    4. Storage throughput

Correct Answer: 4

Explanation:

Storage throughput describes the amount of data transferred during a period of time and is useful for understanding workloads that read or write substantial data volumes. It complements metrics such as IOPS and latency. IOPS measures operation rate, while latency measures response time, so administrators often examine these measurements together when investigating storage performance. VM name length, management-user count, and physical rack height do not measure data transfer volume. Throughput is therefore the most relevant metric when the focus is the quantity of storage data transferred over time.

Question 389.

Why should administrators examine multiple performance metrics rather than relying on CPU utilization alone?

  1. Workload performance can be affected by CPU, memory, storage, and other resources.
    2. CPU utilization is never useful.
    3. Storage has no effect on applications.
    4. Memory cannot affect VM performance.

Correct Answer: 1

Explanation:

Application performance depends on multiple resources, so a single metric rarely provides the complete explanation for a problem. A workload can have acceptable CPU utilization while experiencing memory pressure, increased storage latency, unusual I/O behavior, or another constraint. Administrators should correlate relevant metrics with historical trends, alerts, and events to identify the actual bottleneck. CPU utilization remains useful, but it should be interpreted in context. Effective troubleshooting considers the resource areas that could reasonably contribute to the reported symptom.

Question 390.

A user requires access to only a defined set of management functions. What is the best administrative approach?

  1. Provide the shared root credentials.
    2. Assign permissions appropriate to the user’s role.
    3. Disable all authentication.
    4. Give the user unrestricted access permanently.

Correct Answer: 2

Explanation:

Permissions should be aligned with the user’s actual administrative responsibilities. Role-based access enables administrators to grant necessary capabilities without providing unrestricted control over unrelated infrastructure functions. This follows least-privilege principles and improves accountability. Sharing privileged credentials makes auditing difficult and increases security risk, while disabling authentication is inappropriate for management infrastructure. Unrestricted access should not be provided merely for convenience. Access should be intentionally designed around the operations each user needs to perform.

Question 391.

After adding supported nodes to a Nutanix cluster, what should the administrator verify?

  1. Every VM has been renamed.
    2. All users have administrator privileges.
    3. The new nodes are healthy and cluster resources reflect the expected expansion.
    4. All historical performance data has been deleted.

Correct Answer: 3

Explanation:

After cluster expansion, the administrator should confirm that the newly added nodes are healthy, correctly participating in the cluster, and contributing the expected resources. Relevant alerts and health information should also be reviewed to ensure that the expansion completed as intended. Renaming VMs, granting unrestricted privileges, or deleting historical performance data provides no useful validation of the expansion. Post-change verification is important because it confirms that the infrastructure reached the intended operational state after the new nodes were introduced.

Question 392.

An administrator needs to determine whether a VM performance issue occurs every weekday at approximately the same time. What should be reviewed?

  1. Node shipping labels
    2. Physical rack dimensions
    3. VM naming conventions
    4. Historical performance metrics across multiple days

Correct Answer: 4

Explanation:

Historical performance metrics across multiple days allow the administrator to identify recurring patterns that may not be visible in current measurements. If a slowdown occurs at approximately the same time each weekday, historical charts can reveal whether CPU, memory, storage, or other workload behavior changes consistently during that period. Events may then help correlate the pattern with scheduled jobs or configuration activities. Shipping labels, rack dimensions, and naming conventions provide no time-based performance evidence and therefore cannot establish whether the issue follows a recurring pattern.

Question 393.

What is the primary purpose of role-based access control in infrastructure management?

  1. Restrict management actions according to assigned responsibilities and permissions.
    2. Increase VM storage capacity.
    3. Create additional physical nodes.
    4. Improve storage latency directly.

Correct Answer: 1

Explanation:

Role-based access control helps determine which management operations a user is permitted to perform. By assigning permissions according to responsibilities, organizations can implement least privilege, separate administrative duties, and reduce unnecessary access to sensitive infrastructure functions. RBAC is an access-control mechanism rather than a performance or capacity feature. It does not directly increase storage, create physical nodes, or reduce storage latency. Its value lies in controlling administrative authority in a structured and manageable manner.

Question 394.

A VM needs connectivity to a newly created virtual network. What should the administrator configure on the workload?

  1. Increase its storage replication factor.
    2. Attach or assign an appropriate virtual NIC to the required network.
    3. Run Foundation on the VM.
    4. Replace the VM’s operating system.

Correct Answer: 2

Explanation:

The workload requires a virtual network interface associated with the desired virtual network or subnet. The administrator should configure the VM’s virtual NIC accordingly and then verify any required guest networking settings. Storage replication affects data resiliency rather than network connectivity, Foundation is intended for infrastructure deployment, and replacing the operating system is unnecessary. VM networking is controlled through the virtual network interfaces and their logical network assignments, so troubleshooting should focus on these components when connectivity requirements change.

Question 395.

An administrator observes normal IOPS but unusually high storage latency. What does this indicate should be investigated further?

  1. Only the VM’s name
    2. The rack color
    3. Storage response behavior and related performance conditions
    4. The number of letters in the cluster name

Correct Answer: 3

Explanation:

Normal IOPS does not guarantee normal storage performance. If latency is unusually high, storage operations are taking longer to complete even though the number of operations may be within the workload’s normal range. The administrator should examine historical latency, throughput, workload behavior, alerts, and related infrastructure conditions to understand the cause. Naming conventions and physical rack appearance have no relationship to storage response time. Multiple metrics should be correlated before deciding whether the issue originates with the application or infrastructure.

Question 396.

A cluster expansion operation has completed. Which action provides the best post-change validation?

  1. Delete all old performance data.
    2. Power off every VM.
    3. Remove existing virtual networks.
    4. Review cluster health, node status, alerts, and resulting capacity.

Correct Answer: 4

Explanation:

Post-expansion validation should confirm that the cluster is healthy, the new nodes are participating correctly, no relevant alerts require attention, and capacity reflects the expected additional resources. This establishes that the expansion achieved its intended result without introducing an obvious infrastructure problem. Deleting performance history, powering off workloads, or removing networks would not validate cluster expansion and could cause unnecessary disruption. Infrastructure changes should be followed by targeted verification of the components and resources affected by the change.

Question 397.

What is a benefit of using workload categories consistently across a large virtual environment?

  1. They make workloads easier to classify, identify, and organize.
    2. They physically increase node memory.
    3. They replace virtual networking.
    4. They automatically repair hardware failures.

Correct Answer: 1

Explanation:

Consistent workload categories provide structured metadata that can make large environments easier to navigate and administer. Administrators can classify workloads by attributes such as application, department, environment, or another organizational requirement. This provides more flexibility than relying entirely on VM naming conventions. Categories do not add physical memory, replace networking, or repair failed hardware. Their purpose is logical organization and classification, which can also support other management workflows depending on the capabilities configured in the Nutanix environment.

Question 398.

An administrator sees a storage throughput increase during a nightly backup window. What should be done before treating the increase as a fault?

  1. Shut down the cluster immediately.
    2. Compare the activity with historical behavior and the expected backup workload.
    3. Delete the backup VM.
    4. Reimage all cluster nodes.

Correct Answer: 2

Explanation:

A throughput increase during a known backup window may be expected because backup operations can transfer substantial amounts of data. The administrator should compare current behavior with historical metrics and the expected workload schedule before deciding that the increase represents a problem. Latency, IOPS, alerts, and application impact can provide additional context. Immediately shutting down infrastructure, deleting workloads, or reimaging nodes would be inappropriate without evidence of an actual failure. Performance measurements should always be interpreted in relation to workload behavior and normal baselines.

Question 399.

An administrator needs to investigate whether a VM resource change caused a performance problem. Which information should be correlated?

  1. Rack installation date and warranty expiration
    2. Hardware shipping weight and node color
    3. Change events with historical VM performance metrics
    4. Only the current VM name

Correct Answer: 3

Explanation:

Change events provide information about when a configuration modification occurred, while historical performance metrics show how workload behavior changed before and after that point. Correlating the two can help determine whether the performance issue began around the time of the resource modification. Alerts and task information may provide additional evidence. Static hardware information and VM naming do not establish a relationship between configuration changes and workload performance. Timeline correlation is an important technique for investigating problems that appear after administrative changes.

Question 400.

An administrator has completed a cluster expansion and notices a new health alert. What should be done first?

  1. Delete the newly added nodes immediately.
    2. Ignore the alert because expansion is complete.
    3. Factory-reset the entire cluster.
    4. Review the alert details and correlate them with node status, events, and health information.

Correct Answer: 4

Explanation:

A new health alert appearing after cluster expansion should be investigated before taking disruptive action. The administrator should review the alert details and correlate them with node status, events, health checks, and the recent expansion activity. This helps determine whether the alert is related to the newly added infrastructure or another condition. Immediately removing nodes or resetting the cluster would be excessive without evidence, while ignoring the alert could leave a genuine problem unresolved. Post-change issues should be investigated systematically using the available operational information.