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| Section | Objectives |
|---|---|
| Demonstrate and Understand Platform Health and Monitoring | - Review and interpret alerts and events - Review and interpret workload performance - Leverage support functions - Perform and interpret a health check |
| Describe Nutanix Platform Administration | - Identify virtual networking tasks - Describe licensing tasks - Describe virtual machine tasks - Discuss storage operations |
| Recognize Nutanix Solutions and Tools | - Recognize non-Nutanix Cloud Infrastructure (NCI) solutions, use cases, and features - Recognize Nutanix solutions, use cases, and features of Nutanix Cloud Infrastructure (NCI) technologies - Recognize use cases and features of Nutanix tools |
| Describe Cluster Configuration and Maintenance | - Identify hardware maintenance tasks - Identify software maintenance tasks - Describe valid cluster options |
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NEW QUESTION # 87
On an AHV host, what is the factory-configured default native Linux bridge?
Answer: C
Explanation:
The factory configuration of an AHV host includes a native Linux bridge named virbr0. This bridge is separate from the Open vSwitch components used for normal AHV workload and infrastructure networking.
Administrators should preserve the factory-defined bridge unless a specific Nutanix procedure instructs otherwise.
The similarly named components in the other options serve different purposes. br0 is the factory-configured default Open vSwitch bridge. It contains the physical uplink interfaces and internal ports used by the AHV networking architecture. vs0 is the default AHV virtual-switch configuration associated with br0; it is a logical virtual-switch object rather than a native Linux bridge. ovsbr0 is not the factory-default bridge name in the documented AHV configuration.
This distinction is operationally important when interpreting commands such as ovs-vsctl, Linux bridge utilities, interface listings, or network-troubleshooting output. Confusing virbr0 with br0 can lead an administrator to modify the wrong networking component and potentially disrupt host, CVM, or guest connectivity. Nutanix documentation explicitly identifies the native Linux bridge as virbr0. Reference: AHV
- About Open vSwitch . NHCF alignment: AHV virtual networking components and default bridge architecture.
NEW QUESTION # 88
An administrator needs to receive an email notification when a specific virtual machine consistently exceeds
90% CPU utilization.
Which feature should be used?
Answer: B
Explanation:
A Custom Alert Policy should be created for the target VM's CPU-utilization metric. The policy can define the VM entity, the CPU threshold of 90%, the duration or evaluation condition required to establish sustained utilization, and the alert severity. Prism Central evaluates enabled user-defined alert policies periodically and generates an alert when the configured conditions are satisfied.
Email notification additionally requires alert-email configuration. The administrator must define valid SMTP settings or the applicable notification channel and ensure the intended recipients receive alerts matching the policy. This separates metric evaluation from notification delivery: the Custom Alert Policy detects the condition, while alert-email settings determine how the resulting alert is distributed.
A storage-container quota monitors storage capacity rather than VM CPU utilization. Pulse transfers diagnostic telemetry to Nutanix Support and does not provide customer-defined VM CPU threshold policies.
A Recovery Plan orchestrates disaster-recovery operations and is unrelated to performance-alert evaluation.
Using a sustained-duration condition is important because a brief CPU spike does not necessarily indicate a capacity or performance problem. The policy should reflect how long utilization must exceed 90% before notification is justified.
NHCF/NCA reference: Custom alert policies, metric thresholds, alert evaluation, and email notifications.
Official references: User-Defined Alert Policies , Alert Metrics , and Configuring Alert Emails .
NEW QUESTION # 89
An administrator attempts to run a specific Nutanix Cluster Check (NCC) plugin from the Controller VM command line, but the check will not execute. The administrator discovers that this specific check was recently disabled by another user in the Prism web console.
Which action must the administrator take to successfully run this check from the command line?
Answer: C
Explanation:
When an NCC plugin has been administratively disabled, a normal command-line execution respects that disabled state and skips the plugin. To run that specific check without permanently changing its configured status in Prism, the administrator must append the --force_run=True argument to the NCC command. The flag instructs NCC to execute the selected plugin despite its disabled configuration.
Restarting the cluster health service does not change the plugin's enablement state and introduces an unnecessary service operation. Re-enabling the check in Prism Element could also permit execution, but it changes the persistent configuration and is not required when the objective is to run the check once from the command line. Running ncc health_checks run_all does not override the disabled state; the disabled plugin can still be omitted from the complete check set.
NCC supports running complete check groups, individual plugins, and command options that modify execution behavior. Administrators should use forced execution deliberately because a check may have been disabled due to environmental applicability, a known issue, or support guidance. Reference: NCC 5.2 - NCC Usage . NHCF alignment: executing and interpreting NCC health checks.
NEW QUESTION # 90
Which condition will prevent Nutanix Guest Tools (NGT) from being installed in a VM?
Answer: A
Explanation:
The guest VM must be powered on before Nutanix Guest Tools can be installed inside its operating system.
NGT is not merely a configuration attribute applied to the VM object. It is a software package containing components such as the Nutanix Guest Agent and supporting services that must be installed and executed within the running guest operating system. A powered-off VM cannot execute the installer, start the required services, or establish communication between the guest agent and the Controller VM.
Prism can enable NGT and mount its installer ISO under applicable conditions, including while a VM is powered off, but the actual software installation cannot complete until the guest operating system is running.
This distinction between mounting the installer and installing the software is critical.
NGT supports qualified Windows and Linux operating systems, so neither operating-system family inherently prevents installation. Administrators must instead confirm that the specific OS version is supported, that the VM is powered on, that valid credentials or interactive access are available, and that required CVM-to-guest connectivity exists. Once installed, NGT supports functions such as application-consistent snapshots, guest shutdown and restart, file-level recovery, and guest-agent communication.
NHCF/NCA reference: VM administration and Nutanix Guest Tools lifecycle. Official references: Setting Up NGT and Nutanix Guest Tools .
NEW QUESTION # 91
An administrator needs to decrease the number of CPUs assigned to a VM.
What is the first step?
Answer: D
Explanation:
The VM must be powered off before the administrator can reduce its CPU allocation. CPU hot-plug capabilities permit supported guest operating systems to receive additional virtual CPU resources while running, but they do not provide a supported mechanism for removing active processors from a powered-on VM. Nutanix documentation states that the number of CPUs cannot be decreased while the VM is powered on.
After shutting down the guest cleanly and confirming that the VM is off, the administrator can edit the VM configuration, reduce the required vCPU count or associated CPU topology, save the change, and restart the VM. The proposed configuration must remain valid-for example, the relationship between sockets, vCPUs, and cores must be supported.
Enabling Hot-Add addresses CPU expansion rather than reduction. Nutanix Guest Tools supplies guest integration and operational capabilities but does not override hypervisor restrictions on CPU removal. A snapshot may be useful as an optional change-control precaution, but it does not make CPU reduction possible and is not the required first step.
The technically necessary action is therefore to power off the VM. Reference: AHV - Virtual Machine Memory and CPU Hot-Plug Configurations . NHCF alignment: modifying VM compute resources and understanding hot-plug limitations.
NEW QUESTION # 92
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