NCA 7.5: Nutanix Certified Associate Practice Exam

What the NCA 7.5 exam covers

• Nutanix Concepts and Architecture96 questions
• Managing the Cluster with Prism102 questions
• Virtual Machine Management101 questions
• Storage Management97 questions
• Networking and Data Protection118 questions
• Monitoring, Health, and Maintenance97 questions

Free NCA 7.5 sample questions

A sample of 10 questions with answers and explanations. Sign up free to practice all 611.

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 2Managing the Cluster with Prism

   An administrator needs to build a custom chart that overlays Controller IOPS and Controller latency for the cluster over the past 24 hours to investigate a performance trend. Which Prism Element view is purpose-built for this?

   • AThe Home dashboard
   • BThe Hardware view
   • CThe Analysis viewCorrect
   • DThe Storage view
   ✓ Correct answer: C

   The Analysis view in Prism Element lets administrators create custom metric and entity charts and plot them over selectable time ranges. The administrator can add multiple metrics such as Controller IOPS and Controller latency to the same chart, choose the entity, and adjust the time window to spot trends and correlations. This makes it the dedicated tool for ad hoc performance investigation.

   Why the other options are wrong

   • AThe Home dashboard shows fixed summary widgets with limited time control, not customizable overlaid charts.
   • BThe Hardware view focuses on physical component status, not custom performance charting.
   • DThe Storage view reports storage capacity and efficiency, not custom time-series performance analysis.
3. Question 3Virtual Machine Management

   After installing the OS on an AHV VM from an ISO, an administrator wants the VM to boot from its installed disk on the next power cycle rather than re-launching the installer. What is the recommended action regarding the CD-ROM?

   • AEject (unmount) the ISO from the CD-ROMCorrect
   • BDelete the VM's primary disk
   • CRemove all NICs from the VM
   • DReduce the VM's vCPU count to 1
   ✓ Correct answer: A

   Once the operating system is installed, the recommended practice is to eject or unmount the ISO from the VM's CD-ROM so the VM no longer attempts to boot the installer. With no bootable ISO present, the VM proceeds to boot from its installed disk on the next power cycle. This avoids accidentally restarting the installation. Removing the ISO from the optical device is the clean way to change boot behavior without altering the VM's disks or hardware.

   Why the other options are wrong

   • BDeleting the VM's primary disk would destroy the freshly installed operating system, which is the opposite of the goal.
   • CRemoving all NICs would disconnect the VM from the network and has nothing to do with which device it boots from.
   • DReducing the vCPU count to 1 changes compute resources but does not affect whether the VM boots from the disk or the ISO.
4. Question 4Storage Management

   An administrator is deciding which storage efficiency technique to apply to a write-once, read-many archive of cold data that is rarely modified after ingest. Which characteristic of erasure coding makes it especially appropriate for this workload?

   • AIt reduces the CPU cost of every write by skipping parity calculation entirely
   • BIt provides the greatest savings on cold data that is seldom rewrittenCorrect
   • CIt delivers its best space savings on hot data with a high overwrite rate
   • DIt achieves inline savings on data as it is first being written to the oplog
   ✓ Correct answer: B

   Erasure coding (EC-X) computes parity across a strip of data blocks, and that parity must be recalculated whenever data in the strip changes. As a result, it delivers the best capacity savings on cold, infrequently rewritten data such as archives, where the parity computation cost is paid once and rarely repeated. Nutanix specifically recommends erasure coding for write-cold data to avoid the overhead of constant re-encoding. The write-once, read-many archive in the scenario is an ideal match for this characteristic.

   Why the other options are wrong

   • AErasure coding adds parity computation on writes rather than skipping it, so it does not reduce per-write CPU cost; that overhead is exactly why it favors cold data.
   • CHot data with a high overwrite rate is the worst fit, since every overwrite forces the parity strip to be recalculated, eroding the capacity savings.
   • DErasure coding is applied as a post-process background operation on write-cold data, not inline as data first lands in the oplog write buffer.
5. Question 5Networking and Data Protection

   An administrator wants to protect a group of VMs that are managed in Prism Central using categories and a recurring snapshot schedule, rather than the legacy Protection Domain workflow in Prism Element. Which Prism Central feature should be used?

   • AA Data Protection (Leap) Protection PolicyCorrect
   • BA storage container capacity quota
   • CA Flow microsegmentation policy
   • DAn LCM firmware upgrade plan
   ✓ Correct answer: A

   In Prism Central, the modern data protection workflow uses a Protection Policy that targets VMs by category and defines the snapshot recurrence and retention, replacing the per-cluster Protection Domain approach of Prism Element. This category-based model scales across clusters and integrates with Recovery Plans for orchestrated failover. It is the recommended way to apply consistent local and remote protection from a central management point.

   Why the other options are wrong

   • BA storage container quota limits how much capacity a container can consume and has nothing to do with snapshot scheduling.
   • CA Flow microsegmentation policy controls network traffic between workloads, not data protection snapshots.
   • DAn LCM (Life Cycle Manager) upgrade plan handles firmware and software updates, not VM snapshots.
6. Question 6Monitoring, Health, and Maintenance

   An administrator needs to update the AOS software, AHV hypervisor, and firmware on the disks of a Nutanix cluster from a single place in Prism. Which built-in tool is designed to manage all of these updates?

   • ALife Cycle Manager (LCM)Correct
   • BPrism Central Reports
   • CData Protection
   • DNetwork Visualization
   ✓ Correct answer: A

   Life Cycle Manager (LCM) is the framework in Prism that inventories, displays, and updates software and firmware across the cluster from one interface. It can update AOS, AHV, BIOS/BMC firmware, disk firmware, and many Nutanix software components such as Foundation and the LCM framework itself. Because it tracks current versions and available updates together, administrators avoid manually tracking each component, which is exactly what this scenario requires.

   Why the other options are wrong

   • BPrism Central Reports generates scheduled reports about capacity and usage and does not perform software or firmware updates.
   • CData Protection configures snapshots, protection domains, and replication for recovery, not version upgrades.
   • DNetwork Visualization maps the relationship between VMs, hosts, and physical switches and has no upgrade capability.
7. Question 7Managing the Cluster with Prism

   In Prism Element an administrator opens the Storage view and switches to the Storage Container tab. Which action can be performed directly from this tab?

   • ACreate a storage container and enable compression or deduplicationCorrect
   • BPower on a virtual machine and open its remote console session
   • CUpgrade the AOS software to the newest available version
   • DConfigure the cluster NTP, DNS, and time servers
   ✓ Correct answer: A

   Storage containers are logical storage constructs presented to the hypervisor as datastores or shares. From the Storage view's Container tab you can add a container and configure capacity reservations along with inline efficiency options like compression and deduplication. VM power operations, AOS upgrades, and NTP all live in other views.

   Why the other options are wrong

   • BPowering on a VM is done from the VM view, not the Storage Container tab.
   • CAOS upgrades are performed through Life Cycle Manager (LCM) / Upgrade Software, not from the Storage tab.
   • DNTP server configuration is found under the Settings (gear) menu, not in the Storage view.
8. Question 8Virtual Machine Management

   An administrator notices a Linux VM on AHV is configured with the default video and serial console but wants browser-based graphical console access from Prism. Which console option provides this?

   • ALaunch Console for a browser VNC session on the VMCorrect
   • BThe Image Service ISO upload dialog
   • CA new VM anti-affinity placement policy
   • DThe storage container compression setting
   ✓ Correct answer: A

   Prism provides a Launch Console action for VMs that opens a VNC-based graphical session, letting an administrator see the VM's screen and use the keyboard even with no network connectivity to the guest. This is the standard way to interact with the guest OS console from the management UI. It works regardless of in-guest network state.

   Why the other options are wrong

   • BThe Image Service dialog manages disks and ISOs, not interactive console access.
   • CAn anti-affinity policy controls placement, not console access.
   • DStorage compression is a data-efficiency feature unrelated to opening a console.
9. Question 9Storage Management

   An administrator wants the cluster to automatically place the most active data on the fastest available media and demote inactive data to slower media without manual intervention. Which Nutanix capability provides this?

   • AAutomatic data tiering between the SSD and HDD tiers (ILM)Correct
   • BManual nightly disk defragmentation jobs
   • CDisabling the cluster's storage pool
   • DSetting every container's advertised capacity to zero
   ✓ Correct answer: A

   Nutanix continuously monitors data access patterns and uses intelligent lifecycle management to keep hot data on the SSD tier and migrate cold data down to HDD automatically. This optimizes performance and capacity without administrator action.

   Why the other options are wrong

   • BNutanix does not require manual nightly defragmentation; tiering is automatic.
   • CDisabling the storage pool would remove storage, not optimize tiering.
   • DAdvertised capacity is a quota and would not perform tiering.
10. Question 10Networking and Data Protection

    An administrator configures a Protection Domain schedule retaining only the 5 most recent local snapshots. After the 6th scheduled snapshot is created, what happens?

    • AThe 6th snapshot fails because the retention limit is reached
    • BThe oldest snapshot is automatically expired/deleted to keep only 5Correct
    • CAll 6 snapshots are retained until manually deleted
    • DThe schedule is automatically disabled
    ✓ Correct answer: B

    A retention policy defines how many recent snapshots to keep. When a new snapshot pushes the count above the limit, Nutanix automatically expires the oldest one so the configured number is maintained, reclaiming space.

    Why the other options are wrong

    • ANew snapshots are not blocked by retention; instead old ones roll off.
    • CRetention exists specifically to avoid unbounded growth, so old snapshots are pruned automatically.
    • DReaching the retention count does not disable the schedule; it continues running.

Related Nutanix resources

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