NCA: Nutanix Certified Associate Practice Exam

What the NCA exam covers

• Nutanix Concepts and Architecture54 questions
• Managing the Cluster with Prism53 questions
• Virtual Machine Management54 questions
• Storage Management54 questions
• Networking and Data Protection54 questions
• Monitoring, Health, and Maintenance54 questions

Free NCA sample questions

A sample of 10 questions with answers and explanations. Sign up free to practice all 323.

1. Question 1Nutanix Concepts and Architecture

   A company is replacing aging hardware that consists of separate rack-mounted servers, a Fibre Channel SAN, and dedicated SAN switches. They want a single solution that combines compute and storage into one appliance to reduce complexity. Which type of infrastructure does Nutanix provide to meet this goal?

   • ATraditional 3-tier infrastructure
   • BHyperconverged infrastructure (HCI)Correct
   • CConverged infrastructure with a dedicated SAN
   • DBare-metal infrastructure without virtualization
   ✓ Correct answer: B

   Nutanix delivers hyperconverged infrastructure, which integrates compute, storage, and virtualization into a single x86 server node that is clustered with other nodes. By collapsing the separate server, SAN, and SAN switch layers into software running on standard hardware, HCI removes the need for a dedicated storage array and the Fibre Channel fabric. The Distributed Storage Fabric pools the local drives across all nodes and presents them as shared storage to the cluster, directly reducing the complexity the company wants to eliminate.

   Why the other options are wrong

   • ATraditional 3-tier infrastructure is exactly what the company is trying to replace, since it keeps compute, storage, and the storage network as separate physical tiers.
   • CConverged infrastructure with a dedicated SAN still relies on a separate external storage array rather than collapsing storage into the server nodes.
   • DBare-metal infrastructure without virtualization does not provide the integrated, virtualized compute-and-storage model that defines a Nutanix solution.
2. Question 2Nutanix Concepts and Architecture

   Which statement correctly distinguishes a cluster from a node in Nutanix architecture?

   • AA node is a logical group of clusters, while a cluster is a single physical server
   • BA cluster is a logical group of nodes that work together, while a node is a single physical serverCorrect
   • CA cluster and a node are identical terms used interchangeably
   • DA node contains multiple clusters that share the same Controller VM
   ✓ Correct answer: B

   A node is one physical server providing compute and storage, and a cluster is the logical grouping of multiple nodes that operate together as a single resilient system managed through Prism. The cluster aggregates the storage of all its nodes into a shared Distributed Storage Fabric and coordinates services such as high availability and data redundancy across those nodes. This many-nodes-form-one-cluster relationship is fundamental to the scale-out design. The cluster is the higher-level construct and the node is its building block.

   Why the other options are wrong

   • ADescribing a node as a logical group of clusters and a cluster as a single physical server reverses the hierarchy, since nodes are physical servers and clusters are the logical grouping.
   • CCalling cluster and node interchangeable terms is wrong, because they describe two distinct levels of the architecture, one physical and one logical.
   • DStating that a node contains multiple clusters sharing one Controller VM is incorrect, since each node runs one CVM and many nodes combine to form one cluster.
3. Question 3Managing the Cluster with Prism

   In the Prism Element VM view, an administrator selects a specific virtual machine and clicks the Launch Console action. What is the result?

   • AA remote console session to the guest operating system of the selected VM opensCorrect
   • BThe VM is migrated to another host
   • CA protection domain is created for the VM
   • DThe cluster Settings menu opens
   ✓ Correct answer: A

   The Launch Console action in the VM view opens a remote graphical console to the selected virtual machine's guest operating system, similar to sitting at a physical monitor attached to the VM. This lets the administrator interact with the OS for tasks such as installation, login, or troubleshooting when network access is unavailable. It is one of the standard per-VM actions exposed in the VM view.

   Why the other options are wrong

   • BMigrating the VM to another host is performed by a separate Migrate action, not Launch Console.
   • CCreating a protection domain for the VM is done in the Data Protection view, not via Launch Console.
   • DOpening the cluster Settings menu is done with the gear icon, not by launching a VM console.
4. Question 4Managing the Cluster with Prism

   During initial cluster access, which default local user account is used to first log into Prism Element after the cluster is created?

   • AadminCorrect
   • Broot
   • Cadministrator
   • Dnutanix-guest
   ✓ Correct answer: A

   The default local Prism user account used to first log into Prism Element is "admin". On initial login the administrator is required to change the default password before proceeding, which is a standard security step. This account has full administrative privileges for managing the cluster through the Prism web interface.

   Why the other options are wrong

   • B"root" is the underlying Linux superuser for the Controller VM (CVM) and AHV host shells, not the Prism web login account.
   • C"administrator" is a common Windows account name but is not the default Prism Element login.
   • D"nutanix-guest" is not a valid default Prism account; "nutanix" is an SSH service account on the CVM, not the Prism web UI login.
5. Question 5Virtual Machine Management

   Before applying a risky in-guest software update, an administrator wants a quick point-in-time recovery point of a single VM that can be reverted if the update fails. Which action in Prism Element provides this?

   • ATake a VM snapshotCorrect
   • BClone the VM
   • CExport the VM as an OVA
   • DPower Off the VM
   ✓ Correct answer: A

   Taking a VM snapshot in Prism Element captures the state and disk contents of the VM at a specific moment, creating a local recovery point the administrator can revert to if the software update causes problems. Snapshots are created quickly using redirect-on-write metadata, so they consume minimal space initially and are ideal for short-term protection around a risky change. The administrator can later restore the VM from this snapshot to roll back the failed update.

   Why the other options are wrong

   • BClone the VM creates a separate independent VM rather than an in-place recovery point for the original.
   • CExport the VM as an OVA produces a portable file for moving the VM elsewhere, not a fast in-place revert point.
   • DPower Off the VM simply stops it and provides no ability to revert disk contents to a prior state.
6. Question 6Storage Management

   An administrator deploys a new Nutanix cluster and wants to understand where the physical storage capacity lives. Which statement BEST describes a storage pool in a Nutanix cluster?

   • AA logical grouping of all physical storage devices (SSDs and HDDs) across all nodes in the clusterCorrect
   • BA folder presented to guest VMs for storing application data
   • CA reserved area of memory used by the Controller VM for caching
   • DA backup target located outside the cluster
   ✓ Correct answer: A

   In Nutanix AOS, the storage pool is the foundational construct that aggregates all physical storage drives, including SSDs and HDDs, from every node into a single pool of capacity. The Distributed Storage Fabric (DSF) manages this pooled capacity and presents it to higher-level constructs such as storage containers. Most clusters use a single storage pool that automatically includes all disks, simplifying capacity management.

   Why the other options are wrong

   • BA folder presented to guest VMs for storing application data describes a share or container datastore, not the underlying physical pool.
   • CA reserved area of memory used by the Controller VM for caching describes CVM memory or cache, not a storage pool, which is built from physical disks.
   • DA backup target located outside the cluster is unrelated, since a storage pool is internal physical capacity aggregated by the cluster itself.
7. Question 7Storage Management

   A new container is created and the administrator wants to thick-provision a virtual disk so that its full logical size is reserved on the cluster immediately, guaranteeing the space is always available. How does this differ from the default thin provisioning behavior?

   • AThick provisioning reserves the full capacity up front, while thin provisioning allocates capacity only as data is writtenCorrect
   • BThick provisioning compresses data while thin provisioning does not
   • CThick provisioning removes duplicate blocks while thin provisioning keeps them
   • DThick provisioning and thin provisioning consume identical physical space in all cases
   ✓ Correct answer: A

   Thick provisioning reserves the entire logical size of a virtual disk on the cluster at creation time, guaranteeing the space will always be available to that disk. Thin provisioning, which is the Nutanix default, instead allocates physical capacity on demand as the guest writes data, allowing higher utilization and overcommitment. The trade-off is that thick provisioning sacrifices the flexibility and oversubscription benefits of thin in exchange for a guaranteed reservation. The distinction is about when capacity is reserved, not about data reduction.

   Why the other options are wrong

   • BSaying thick provisioning compresses data while thin does not confuses provisioning with compression, which is a separate data reduction feature.
   • CSaying thick provisioning removes duplicate blocks while thin keeps them confuses provisioning with deduplication, which is what actually removes duplicates.
   • DClaiming the two methods consume identical physical space in all cases is wrong, since thick reserves the full size while thin consumes only what is written.
8. Question 8Networking and Data Protection

   A junior administrator asks where AHV virtual switches and subnets are configured and managed for the entire cluster. What is the correct answer?

   • AIn Prism, which applies the configuration consistently across all AHV hostsCorrect
   • BBy editing each host's BIOS settings individually
   • CThrough the guest VM operating system network settings
   • DOnly by reconfiguring the upstream physical switch
   ✓ Correct answer: A

   AHV networking, including virtual switches and VLAN-backed subnets, is configured through Prism (Prism Element or Prism Central). Because Acropolis manages the virtual switch cluster-wide, changes such as creating a subnet or modifying an uplink bond are propagated consistently to every AHV host, avoiding per-host configuration drift. This centralized management is a core benefit of the AHV virtual switch model.

   Why the other options are wrong

   • BEditing each host's BIOS settings has nothing to do with virtual switch or subnet configuration.
   • CThe guest VM operating system network settings control the guest's IP stack, not the hypervisor's virtual switches or subnets.
   • DReconfiguring the upstream physical switch may be required for trunking, but it does not define or manage the AHV virtual switches and subnets themselves.
9. Question 9Networking and Data Protection

   In Nutanix Leap (the disaster recovery orchestration feature), what is used to automate the order and steps for failing over multiple VMs to a recovery location?

   • AA recovery planCorrect
   • BA storage container
   • CA vNIC profile
   • DA CVM affinity rule
   ✓ Correct answer: A

   A recovery plan in Nutanix Leap orchestrates disaster recovery by defining which VMs failover, in what order (stages), and any network mappings or scripts to run, so an entire application can be recovered with predictable, repeatable steps. This automation reduces manual effort and human error during a real failover and supports testing without affecting production. Recovery plans work together with protection policies that handle the underlying replication.

   Why the other options are wrong

   • BA storage container is a logical storage area on a cluster and does not orchestrate failover steps.
   • CA vNIC profile relates to virtual network interface settings, not to ordering a multi-VM failover.
   • DA CVM affinity rule concerns Controller VM placement and has nothing to do with DR orchestration.
10. Question 10Monitoring, Health, and Maintenance

    Which Prism Element interface area allows an administrator to run NCC health checks and view their results without using the command line?

    • AThe Storage dashboard
    • BThe Health dashboardCorrect
    • CThe VM dashboard
    • DThe Network dashboard
    ✓ Correct answer: B

    The Health dashboard in Prism Element provides a graphical way to view the status of cluster entities and to run NCC checks through the Actions menu, such as Run Checks. Results are displayed with their PASS, WARN, or FAIL status alongside descriptions and remediation guidance, removing the need to use the CVM command line. This makes the Health dashboard the central location for monitoring cluster health from the web UI.

    Why the other options are wrong

    • AThe Storage dashboard focuses on storage capacity, containers, and storage pools rather than running health checks.
    • CThe VM dashboard is used to manage and monitor virtual machines, not to execute NCC checks.
    • DThe Network dashboard displays network configuration and traffic, and does not provide the NCC check execution interface.

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