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Nutanix NCA study materials
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Nutanix NCA practice questions

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Question 1Nutanix Enterprise Cloud Fundamentals

Which component runs on every node of a Nutanix cluster and provides storage and cluster services to the hypervisor?

  1. Controller VM Correct answer.
  2. Foundation VM
  3. Prism Central
  4. Nutanix Move appliance

Explanation

Every node runs a Controller VM alongside the hypervisor, and together the CVMs form the distributed storage fabric. The CVM also hosts the AOS services that serve I/O and manage the cluster.

Question 2Nutanix Enterprise Cloud Fundamentals

Which Nutanix management plane provides a single interface for administering multiple clusters and their VMs?

  1. Prism Central Correct answer.
  2. Life Cycle Manager
  3. Nutanix Calm
  4. Prism Element

Explanation

Prism Central aggregates many registered clusters into one management console with cross-cluster visibility and policy. Prism Element, by contrast, is scoped to a single cluster.

Question 3Nutanix Enterprise Cloud Fundamentals

What does a replication factor of 3 (RF3) mean for data stored in a Nutanix cluster?

  1. Three copies of each extent, tolerating two node failures Correct answer.
  2. Each node keeps three spare disks available for rebuild operations
  3. Data is asynchronously replicated to three separate remote clusters
  4. Point-in-time snapshots are retained on each node for three days

Explanation

RF3 keeps three replicas of each data extent on separate failure domains, so the cluster can absorb two simultaneous component failures without data loss. It consumes more raw capacity than RF2 in exchange for the higher resilience.

Question 4Nutanix Enterprise Cloud Fundamentals

Which hypervisor is Nutanix's own native virtualization solution that ships with AOS?

  1. VMware ESXi
  2. Microsoft Hyper-V
  3. Citrix Hypervisor
  4. AHV Correct answer.

Explanation

AHV is the Acropolis Hypervisor, a KVM-based hypervisor developed by Nutanix and included with the platform at no additional hypervisor licensing cost. ESXi and Hyper-V are supported third-party options.

Question 5Nutanix Enterprise Cloud Fundamentals

What is a Nutanix cluster?

  1. A pair of Prism Central instances providing high availability
  2. A logical partition of a storage container used for tiering
  3. A group of nodes managed as one system Correct answer.
  4. A single physical server running multiple virtual machines

Explanation

A cluster is a set of Nutanix nodes whose CVMs cooperate to present pooled compute and storage as a single manageable system. Nodes can be added or removed without a disruptive re-architecture of the cluster.

Question 6Nutanix Enterprise Cloud Fundamentals

Which statement best describes a Nutanix block?

  1. A chassis that holds multiple nodes Correct answer.
  2. A logical grouping of storage containers used to apply policy
  3. A single VM disk presented to an external host over iSCSI
  4. A unit of data replication within the distributed storage fabric

Explanation

A block is the physical chassis that houses several Nutanix nodes plus shared components such as power and cooling. Because nodes in one block can fail together, block awareness lets the cluster place replicas across blocks.

Question 7Nutanix Enterprise Cloud Fundamentals

What does AOS provide in a Nutanix environment?

  1. The physical hardware and firmware of each node
  2. Only the web console used to monitor cluster health
  3. The distributed storage and management layer Correct answer.
  4. The hypervisor that runs on each node of the cluster

Explanation

AOS is the software layer whose services run in the Controller VMs and collectively deliver the distributed storage fabric, data protection, and cluster management. It runs on top of the hypervisor choice rather than replacing it.

Question 8Nutanix Enterprise Cloud Fundamentals

What is Nutanix Move used for?

  1. Encrypting data at rest across the cluster
  2. Running application blueprints for self-service
  3. Monitoring performance across multiple clusters
  4. Migrating workloads onto Nutanix Correct answer.

Explanation

Move is a migration tool that transfers VMs and their disks from other hypervisors, clouds, or storage platforms into a Nutanix cluster. It coordinates the cutover and keeps the source workload running until the migration completes.

Question 9Nutanix Enterprise Cloud Fundamentals

A VM on a node reads data that has a replica stored locally. Which AOS behavior keeps that I/O on the local node whenever possible?

  1. Deduplication
  2. Data locality Correct answer.
  3. Block awareness
  4. Erasure coding

Explanation

AOS places at least one replica on the node running the VM and lets the local Controller VM serve the read, avoiding a network hop. Placement adjusts as VMs migrate or as the cluster rebalances.

Question 10Nutanix Enterprise Cloud Fundamentals

Which settings are defined on a Nutanix storage container?

  1. The VLAN used for backplane replication traffic
  2. The number of vCPUs assigned to each VM
  3. Replication factor and dedup policy Correct answer.
  4. The hypervisor type installed on the nodes

Explanation

A storage container is a logical segmentation of the distributed storage fabric that carries data services policies such as replication factor, deduplication, and compression. VMs consume capacity through containers rather than raw disks.

Question 11Nutanix Enterprise Cloud Fundamentals

Which task does Nutanix Foundation perform?

  1. Continuously monitoring cluster health and alerting
  2. Balancing data across nodes during normal operation
  3. Imaging nodes and creating the initial cluster Correct answer.
  4. Provisioning databases and their clones

Explanation

Foundation discovers bare-metal nodes, applies the AOS and hypervisor images, and forms them into a working cluster. Once the cluster exists, ongoing operations move to Prism.

Question 12Nutanix Enterprise Cloud Fundamentals

What is the role of the Curator service in AOS?

  1. Background scans and garbage collection Correct answer.
  2. Providing the web interface for cluster administration
  3. Storing cluster metadata in a distributed key-value store
  4. Serving block-level read and write requests from the hypervisor

Explanation

Curator runs map-reduce style background scans that reclaim space from deleted or stale extents and help rebalance data across nodes. It works quietly in the background so foreground I/O is not disrupted.

Question 13Nutanix Enterprise Cloud Fundamentals

Which Nutanix capability provides microsegmentation and security policy for VM traffic?

  1. Nutanix Objects
  2. Nutanix Files
  3. Nutanix Flow Correct answer.
  4. Nutanix Calm

Explanation

Flow applies distributed firewall rules and microsegmentation to VM traffic, using categories and policy rather than only perimeter devices. It lets administrators isolate workloads with granular allow/deny rules.

Question 14Nutanix Enterprise Cloud Fundamentals

What does Nutanix Calm deliver?

  1. Automated database provisioning, cloning, and refresh
  2. Scale-out file shares served over SMB and NFS protocols
  3. S3-compatible object storage exposed through a REST endpoint
  4. Blueprint-driven application lifecycle management Correct answer.

Explanation

Calm uses blueprints to model multi-tier applications and to automate their deployment, scaling, and deletion, optionally with self-service catalogs. It orchestrates provisioning across the Nutanix stack and public clouds.

Question 15Nutanix Enterprise Cloud Fundamentals

Which Nutanix product provides scale-out file shares over SMB and NFS?

  1. Nutanix Files Correct answer.
  2. Nutanix Objects
  3. Nutanix Era
  4. Nutanix Volumes

Explanation

Nutanix Files adds a distributed file server layer to the cluster, serving SMB and NFS shares from file server VMs backed by the distributed storage fabric. It scales out by adding file server instances.

Question 16Nutanix Enterprise Cloud Fundamentals

In a Nutanix cluster that uses block awareness, what is an availability domain?

  1. A set of nodes that share a common failure boundary Correct answer.
  2. A set of clusters managed by a single Prism Central instance
  3. The time window during which maintenance may be performed
  4. A vDisk that can be accessed by any node in the cluster

Explanation

An availability domain groups nodes that are expected to fail together, such as the nodes inside one chassis. Replicas are spread across availability domains so that losing a whole block does not lose all copies of an extent.

Question 17Nutanix Enterprise Cloud Fundamentals

How does inline deduplication reduce capacity consumption in AOS?

  1. By deleting snapshots older than a set retention period
  2. By moving cold data to a lower-cost storage tier
  3. By compressing every write before it reaches the CVM
  4. By keeping one copy of identical blocks Correct answer.

Explanation

Deduplication fingerprints blocks as they are written and stores a single shared copy when identical content appears, with references pointing to that copy. Compression is a related but distinct data reduction technique.

Question 18Nutanix Enterprise Cloud Fundamentals

What is Nutanix Life Cycle Manager used for?

  1. Creating application blueprints for self-service
  2. Managing software and firmware upgrades Correct answer.
  3. Reporting on capacity and chargeback
  4. Migrating VMs between clusters during maintenance

Explanation

Life Cycle Manager inventories the cluster's software and firmware components and orchestrates validated upgrade paths. It helps keep AOS, hypervisor, and firmware versions aligned and supported.

Question 19Nutanix Enterprise Cloud Fundamentals

Which Nutanix service exposes S3-compatible object storage?

  1. Nutanix Flow
  2. Nutanix Files
  3. Nutanix Objects Correct answer.
  4. Nutanix Volumes

Explanation

Nutanix Objects provides an S3-compatible object store built on the distributed storage fabric, aimed at cloud-native and backup workloads. It is accessed through object APIs rather than block or file protocols.

Question 20Nutanix Enterprise Cloud Fundamentals

Nutanix Era focuses on which workload?

  1. Database provisioning and lifecycle management Correct answer.
  2. Object storage for cloud-native applications
  3. Container orchestration for Kubernetes clusters
  4. Virtual desktop infrastructure delivery

Explanation

Era automates database operations such as provisioning, cloning, patching, and refresh while providing copy data management for those databases. It targets database engines rather than general-purpose compute or storage services.

Question 21Nutanix Enterprise Cloud Fundamentals

Which process on a Controller VM starts and monitors the other AOS services?

  1. Genesis Correct answer.
  2. Curator
  3. Stargate
  4. Prism

Explanation

Genesis acts as the service manager on each CVM, launching the other AOS processes and restarting them if they stop. Because it supervises the rest of the stack, its health is central to node operation.

Question 22Nutanix Enterprise Cloud Fundamentals

Which AOS service handles the read and write I/O path for the distributed storage fabric?

  1. Genesis
  2. Stargate Correct answer.
  3. Cassandra
  4. Acropolis

Explanation

Stargate is the data I/O manager running on each CVM that accepts vDisk I/O from the hypervisor and services it from the distributed storage fabric. It coordinates with other services for metadata and placement but owns the data path.

Question 23Nutanix Enterprise Cloud Fundamentals

What does the Cassandra service on each CVM store?

  1. The contents of every vDisk in the cluster
  2. Log files for the hypervisor and the Controller VM
  3. Cluster metadata such as extent group locations Correct answer.
  4. The container images used to deploy CVM services

Explanation

Cassandra is a distributed metadata store that records where data extents live and other cluster state needed to locate and protect data. Because it is replicated across CVMs, metadata lookups survive individual node failures.

Question 24Nutanix Enterprise Cloud Fundamentals

With N+1 capacity reservation, what does a Nutanix cluster keep free?

  1. Free space equal to one node's capacity Correct answer.
  2. One spare CVM license per cluster
  3. One snapshot per VM per day for rollback
  4. One IP address per node for failover

Explanation

N+1 reserving holds back roughly one node's worth of capacity so that if a node fails, its data can be rebuilt onto the surviving nodes. Without that headroom, the cluster could not restore full redundancy after a failure.

Question 25Nutanix Enterprise Cloud Fundamentals

On AHV, what is a shadow clone?

  1. A complete independent copy of a virtual machine created for backup purposes
  2. A temporary placeholder virtual machine created during live migration
  3. A powered-off replica of a virtual machine kept on a remote cluster
  4. A snapshot-based read-only copy used for fast cloning Correct answer.

Explanation

A shadow clone is a read-only point-in-time copy of a VM created from a snapshot, and new VMs clone from it using shared extents so provisioning is near-instant. This makes it useful for rapidly deploying many similar VMs such as VDI desktops.

Question 26Nutanix Enterprise Cloud Fundamentals

Which Nutanix management console runs as its own VM and can register and manage many clusters from one interface?

  1. Prism Central Correct answer.
  2. Life Cycle Manager
  3. Foundation
  4. Prism Element

Explanation

Prism Central is a separate VM-based service that multiple clusters register with, giving a single pane for inventory, categories, and cross-cluster features. Prism Element is the console that belongs to one cluster and is reached directly on that cluster.

Question 27Nutanix Enterprise Cloud Fundamentals

A cluster is set to replication factor 2. How many copies of each write does the distributed storage fabric keep?

  1. Three copies on separate nodes
  2. Two copies on separate nodes Correct answer.
  3. One copy, with parity used for protection
  4. Two copies on the same node

Explanation

Replication factor defines how many live copies of each write are maintained, and those copies are placed on separate nodes or fault domains so one failure cannot lose the data. RF2 therefore means two copies on two different nodes.

Question 28Nutanix Enterprise Cloud Fundamentals

Which AOS capability stores data as parity fragments spread over several nodes so that raw capacity use is lower than keeping full copies?

  1. Thin provisioning
  2. Inline compression
  3. Erasure coding Correct answer.
  4. Inline deduplication

Explanation

Erasure coding groups data into stripes with parity across nodes, so the capacity needed to survive a failure is less than maintaining complete replicas. It is typically applied to colder data because reconstructing from parity costs more than reading a replica.

Question 29Nutanix Enterprise Cloud Fundamentals

An administrator must service one AHV host while its VMs keep running. Which capability moves those running VMs to other hosts without downtime?

  1. Shadow clones
  2. Volume groups
  3. Affinity policies
  4. Live migration Correct answer.

Explanation

AHV live migration copies a running VM's memory state to another host in the cluster and switches execution there, so the guest operating system never stops. This lets a host be placed into maintenance mode without powering off its VMs.

Question 30Nutanix Enterprise Cloud Fundamentals

A bare-metal server that is not part of the cluster needs block-level LUNs from the Nutanix cluster. Which feature should be used?

  1. Nutanix Files
  2. Nutanix Flow
  3. Nutanix Objects
  4. Nutanix Volumes Correct answer.

Explanation

Nutanix Volumes advertises iSCSI block LUNs that are backed by the distributed storage fabric, allowing hosts outside the cluster to consume cluster storage as block devices. The other data services expose file-level or object-level access instead.

Question 31Cluster Architecture and Components

In a Nutanix cluster, what is the primary role of the Controller VM (CVM) on each node?

  1. It forwards all cluster traffic as a physical switch.
  2. It runs Nutanix storage and cluster services. Correct answer.
  3. It provides out-of-band hardware management and console access.
  4. It runs the guest virtual machines directly on the node.

Explanation

Each node runs one CVM, which is a virtual machine hosting the Nutanix software stack. The CVM delivers storage and cluster services, while guest VMs are run by the hypervisor rather than inside the CVM.

Question 32Cluster Architecture and Components

Which Nutanix management interface is scoped to a single cluster?

  1. Prism Element Correct answer.
  2. Foundation
  3. Life Cycle Manager
  4. Prism Central

Explanation

Prism Element is the management interface for one Nutanix cluster, covering its hosts, VMs, and storage. Prism Central provides management across multiple registered clusters.

Question 33Cluster Architecture and Components

AHV, the native Nutanix hypervisor, is based on which underlying technology?

  1. KVM Correct answer.
  2. Xen
  3. Hyper-V
  4. ESXi

Explanation

AHV is a Type-1 hypervisor built on KVM. It provides native virtualization within the Nutanix stack without requiring a separate commercial hypervisor.

Question 34Cluster Architecture and Components

What is the main function of the Distributed Storage Fabric (DSF)?

  1. It manages firmware and software upgrades for nodes.
  2. It aggregates local storage into a shared pool. Correct answer.
  3. It provides console access to each guest virtual machine.
  4. It routes network traffic between cluster VLANs.

Explanation

DSF pools the local disks of all nodes into a single logical datastore that the hypervisors consume. It also distributes data and metadata across the cluster for resilience and performance.

Question 35Cluster Architecture and Components

Which service sends automated health and diagnostic data from a Nutanix cluster to Nutanix support?

  1. NCC
  2. Genesis
  3. LCM
  4. Pulse Correct answer.

Explanation

Pulse is the automated telemetry service that periodically transmits health and diagnostic information to Nutanix support. It helps support proactively identify and resolve issues.

Question 36Cluster Architecture and Components

Which tool runs a set of checks to validate the health and configuration of a Nutanix cluster?

  1. Foundation
  2. NCC Correct answer.
  3. Pulse
  4. Prism Central

Explanation

Nutanix Cluster Check (NCC) is a health-check framework that runs diagnostic checks against cluster components and configuration. Its results help identify issues before they affect availability.

Question 37Cluster Architecture and Components

Which Nutanix tool is used to image nodes and create a cluster during initial deployment?

  1. Foundation Correct answer.
  2. Life Cycle Manager
  3. NCC
  4. Pulse

Explanation

Foundation is the deployment utility that images Nutanix nodes with the desired software and forms them into a cluster. It is typically used during initial installation or node reimaging.

Question 38Cluster Architecture and Components

What does a replication factor of 2 (RF2) mean in a Nutanix cluster?

  1. Two copies of data are kept on separate nodes. Correct answer.
  2. Two copies of data are kept on the same node.
  3. Two CVMs run on every node in the cluster.
  4. Two independent clusters are maintained for redundancy.

Explanation

RF2 keeps two copies of each data extent on different nodes, so the data survives the loss of one node. It is the common default for many production clusters.

Question 39Cluster Architecture and Components

What is the role of the Genesis process on a CVM?

  1. It balances network traffic across cluster nodes.
  2. It handles read and write I/O for guest virtual machines.
  3. It starts and monitors the services running on the CVM. Correct answer.
  4. It stores cluster configuration metadata in a distributed database.

Explanation

Genesis is the process manager that starts, monitors, and restarts the other Nutanix services on the CVM. It also plays a role in cluster initialization and service health.

Question 40Cluster Architecture and Components

Which component stores cluster configuration metadata in a distributed database?

  1. Stargate
  2. Zookeeper
  3. Curator
  4. Cassandra Correct answer.

Explanation

Cassandra is the distributed database used to store cluster configuration metadata. Its replicated design allows metadata to remain available if a CVM fails.

Question 41Cluster Architecture and Components

What is Zookeeper responsible for in a Nutanix cluster?

  1. It manages cluster membership and coordination. Correct answer.
  2. It automates firmware and software upgrades.
  3. It stores all cluster configuration metadata persistently.
  4. It handles the read and write I/O path.

Explanation

Zookeeper provides cluster membership, coordination, and leader election among the CVMs. This helps the distributed services agree on which node holds a given role.

Question 42Cluster Architecture and Components

Which CVM service handles the data I/O path for guest reads and writes?

  1. It images nodes and creates the cluster.
  2. It stores cluster metadata in a distributed database.
  3. It handles the data I/O path for reads and writes. Correct answer.
  4. It runs periodic health checks on the cluster.

Explanation

Stargate is the CVM service that processes storage I/O from the hypervisor, including reads and writes. It manages the local extent store and coordinates replication with peer CVMs.

Question 43Cluster Architecture and Components

Which background service performs disk scrubbing and data rebalancing in a Nutanix cluster?

  1. It manages cluster membership and leader election.
  2. It images nodes and forms the cluster during deployment.
  3. It scrubs disks and rebalances data in the background. Correct answer.
  4. It handles the read and write I/O path for guest VMs.

Explanation

Curator is the background service responsible for disk scrubbing, data rebalancing, and enforcing data placement policies. It runs continuously to maintain cluster health and efficiency.

Question 44Cluster Architecture and Components

A guest VM running on a node reads a vDisk whose data blocks are stored on the same node. How is the read typically served?

  1. The hypervisor reads directly from the physical disk.
  2. The read is always forwarded to a random CVM.
  3. The local CVM serves the read. Correct answer.
  4. Prism Central fetches the blocks over the WAN.

Explanation

Nutanix uses data locality: when the needed blocks reside on the local node, the local CVM serves the read without a network hop. If the blocks are remote, the read is forwarded to the owning CVM.

Question 45Cluster Architecture and Components

What is the primary benefit of enabling erasure coding (EC-X) on a storage container?

  1. It encrypts data at rest on every node.
  2. It deduplicates data across multiple clusters.
  3. It raises the replication factor of the container.
  4. It lowers storage overhead versus replication. Correct answer.

Explanation

Erasure coding stores data and parity fragments across nodes so that redundancy is achieved with less capacity overhead than full replication. It trades some write performance for improved storage efficiency.

Question 46Cluster Architecture and Components

What does Life Cycle Manager (LCM) do in a Nutanix cluster?

  1. It sends telemetry to Nutanix support.
  2. It runs health checks across the cluster.
  3. It automates software and firmware upgrades. Correct answer.
  4. It images new nodes during initial cluster deployment.

Explanation

Life Cycle Manager automates the upgrade of Nutanix software, firmware, and related components. It checks compatibility and orchestrates updates across the cluster.

Question 47Cluster Architecture and Components

A customer wants one interface to manage VMs and services across multiple Nutanix clusters. Which component provides this?

  1. Foundation
  2. NCC
  3. Prism Central Correct answer.
  4. Life Cycle Manager

Explanation

Prism Central is a multi-cluster manager that can register multiple Prism Element clusters and provide centralized visibility and administration. It supports cross-cluster features such as centralized VM management and reporting.

Question 48Cluster Architecture and Components

How is the Controller VM (CVM) deployed on a Nutanix node?

  1. As a remote service in another datacenter
  2. As a virtual machine on each host Correct answer.
  3. As a container inside Prism Central
  4. As bare-metal software on each host

Explanation

On every node, the CVM runs as a virtual machine under the host hypervisor. It consumes reserved CPU and memory and uses the node's local disks to provide storage services.

Question 49Cluster Architecture and Components

What happens when a new node is added to an existing Nutanix cluster?

  1. It must be manually reimaged into a separate cluster first.
  2. It is automatically converted into a witness node.
  3. Its storage joins the pool and data rebalances. Correct answer.
  4. It cannot be added without rebuilding the entire cluster.

Explanation

A new node is discovered and joined to the cluster, and its local storage becomes part of the distributed storage pool. Curator then rebalances data across the expanded cluster.

Question 50Cluster Architecture and Components

A two-node Nutanix cluster needs a tie-breaking component for quorum. What fulfills this role?

  1. A second Prism Central instance.
  2. An external NFS datastore used for all metadata.
  3. A third CVM on one of the nodes.
  4. A witness for quorum and tie-breaking. Correct answer.

Explanation

A two-node cluster uses a witness to break ties and maintain quorum if one node is unavailable. The witness does not store guest data; it provides the third vote for cluster availability decisions.