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| Section | Objectives |
|---|---|
| Describe Cluster Configuration and Maintenance | - Identify software maintenance tasks - Describe supported cluster configuration options - Identify hardware maintenance tasks |
| Recognize Nutanix Solutions and Tools | - Recognize Nutanix Cloud Infrastructure (NCI) technologies, features, and use cases - Recognize non-NCI Nutanix technologies, features, and use cases - Recognize Nutanix tools, features, and use cases |
| Demonstrate and Understand Platform Health and Monitoring | - Review and interpret alerts and events - Leverage support functions - Review and interpret workload performance - Perform and interpret health checks |
| Describe Nutanix Platform Administration | - Discuss storage operations - Describe virtual machine administration tasks - Identify virtual networking tasks - Describe licensing tasks |
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NEW QUESTION # 86
On a one-node cluster, which updates are supported with LCM?
Answer: A
Explanation:
Life Cycle Manager supports software updates on a single-node cluster but does not support firmware updates in that configuration. Firmware maintenance commonly requires hardware components, host services, or the node itself to be restarted. A conventional multi-node cluster can move workloads and maintain storage availability through other nodes while one node undergoes maintenance. A one-node cluster has no alternate node to preserve cluster services during that process.
"Software only" is broader and more accurate than "AOS only." LCM can manage supported Nutanix software components according to the applicable compatibility and upgrade paths; support is not restricted exclusively to AOS. Inventory is also available as an LCM operation, but option B incorrectly implies that inventory is the only supported capability.
The platform restriction is therefore based on update type: software lifecycle operations are supported, while automated firmware updates are excluded because of the unavoidable service interruption and absence of node-level redundancy. Administrators must still confirm component interoperability and supported upgrade paths before initiating any update. Nutanix explicitly states that LCM is supported for software updates on single-node clusters but not for firmware updates. Reference: Prism 7.5 - Single-Node Cluster Requirements and Limitations . NHCF alignment: LCM capabilities, software maintenance, and cluster-specific limitations.
NEW QUESTION # 87
What is the purpose of Traffic Mirroring on AHV hosts?
Answer: D
Explanation:
Traffic Mirroring replicates selected network traffic from AHV interfaces or source ports and delivers the copied traffic to a designated virtual NIC on a guest VM. The destination VM normally runs monitoring, packet-capture, intrusion-detection, or network-analysis software. This permits inspection of traffic without placing the monitoring system directly within the source workload's forwarding path.
The destination receives copies of packets; it does not become the router or default gateway for the source traffic. Production traffic continues through its normal forwarding path, while the mirrored copy is supplied to the monitoring vNIC. Administrators must select the correct source interfaces, destination VM, direction, and placement configuration so that the monitoring system receives the intended traffic.
LACP performs physical uplink aggregation and link negotiation, which is unrelated to packet replication.
DHCP-based IP assignment is an IP address-management function. Routing overlay traffic through a VPC gateway belongs to Flow Virtual Networking and virtual private cloud routing, not AHV traffic mirroring.
The language in option B corresponds directly to the official function: traffic is mirrored from AHV host interfaces to a guest VM's vNIC. This is conceptually comparable to a switch-port analyzer capability implemented within AHV networking.
NHCF/NCA reference: AHV networking, virtual switches, network diagnostics, and traffic visibility. Official references: Prism Central 7.5 Traffic Mirroring and Creating a Traffic Mirroring Session .
NEW QUESTION # 88
Which bond type provides the best utilization of multiple physical NICs for VM traffic throughput?
Answer: D
Explanation:
Balance-tcp provides active-active link utilization through Link Aggregation Control Protocol and is the strongest choice when the objective is to maximize aggregate VM traffic throughput across multiple physical NICs. The mode distributes traffic using flow information, allowing separate TCP flows-including flows originating from the same VM-to use different physical uplinks. This can increase host and VM bandwidth utilization beyond the capacity of a single uplink when sufficient parallel traffic flows exist.
Balance-tcp requires the corresponding physical-switch ports to be configured as a compatible LACP link aggregation group. The AHV bond and upstream switch configuration must agree; otherwise, connectivity or traffic-distribution failures can occur.
Active-Backup uses only one uplink for forwarding while the other remains available for failover, providing redundancy but not simultaneous bandwidth utilization. Balance-slb is also an active-active mode and does not require switch-side LACP, but its source-load-balancing behavior generally associates traffic sources with particular uplinks and cannot distribute an individual flow across links. "No Uplink Bond" supplies neither link aggregation nor bond-level redundancy.
NHCF/NCA reference: Networking-AHV virtual switches, uplink bonds and physical-network connectivity; NCA Section 2, "Identify virtual networking tasks." Official references: Prism Central-Creating a Virtual Switch , AHV Networking Recommendations .
NEW QUESTION # 89
When creating a new VLAN, what should be specified as the VLAN ID if a network interface uses the Native VLAN?
Answer: A
Explanation:
In Nutanix AHV network configuration, VLAN ID 0 represents the native or untagged VLAN. Therefore, when a VM network interface must communicate through the native VLAN on the connected physical-switch port, the administrator specifies VLAN ID 0 while creating the VLAN-backed virtual network.
The native VLAN carries Ethernet frames without a conventional 802.1Q VLAN tag across the applicable switch connection. Nutanix uses the value 0 as the administrative representation for this untagged behavior. It does not mean that an ordinary production VLAN numbered zero is being created on the physical switch. The physical switch port and AHV uplink configuration must still agree on which traffic is treated as native or untagged.
VLAN ID 1 is commonly a switch default but is not Nutanix's required value for designating native-VLAN behavior. VLAN 255 is an otherwise ordinary numerical VLAN identifier and has no special native-VLAN meaning. VLAN 4096 is outside the usable IEEE 802.1Q VLAN range; Nutanix accepts VLAN identifiers through 4094 for normal tagged VLAN configurations.
NHCF/NCA reference: Networking-AHV networking terminology, VLAN-backed virtual networks and virtual network configuration; NCA Section 2, "Identify virtual networking tasks." Official reference: Prism
7.5-Creating a Basic VLAN Subnet .
NEW QUESTION # 90
An administrator is troubleshooting a VM that consumes excessive resources and is potentially affecting other VMs.
Which VM Efficiency type refers to this type of VM?
Answer: A
Explanation:
A bully VM consumes an unusually high quantity of shared host resources and may deprive other VMs of the resources required to operate normally. NCM Intelligent Operations identifies this behavior by analyzing sustained metrics such as CPU Ready Time, memory swapping, and host I/O activity. The classification is based on observed resource behavior over time rather than only on the VM's configured size.
A constrained VM has insufficient resources for its own workload demand and may experience performance bottlenecks. An over-provisioned VM has more assigned resources than it regularly uses, creating inefficient capacity allocation without necessarily generating heavy consumption. An inactive VM is powered off or exhibits negligible activity for the defined assessment period. These classifications describe different optimization conditions and do not match a VM actively consuming resources at the expense of neighboring workloads.
After identifying a bully VM, the administrator should inspect its CPU, memory, and storage activity, confirm whether the demand is legitimate, and apply appropriate remediation such as workload tuning, resource resizing, scheduling changes, or storage QoS. Nutanix documentation identifies a bully VM through sustained resource-contention indicators. Reference: NCM Intelligent Operations - Behavioral Learning Tools . NHCF alignment: VM efficiency and workload-performance analysis.
NEW QUESTION # 91
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