NCA EXAM

Question 1

ANKI FLASH CARDS NCA

Question 3

What is HCI (Hyper-Converged Infrastructure)?

Answer 3

A combination of servers (compute and storage) with a hypervisor in a distributed system.

Question 4

What is a Nutanix Cluster (NC2)?

Answer 4

A unified hybrid multicloud platform that integrates compute, storage, networking, security, virtualization, and containers.

Question 5

What is a Storage Pool and when is it created?

Answer 5

A logical representation of all physical storage in a cluster; created during cluster setup.

Question 6

What is a Storage Container?

Answer 6

A thin-provisioned subset of a storage pool used to store vDisks.

Question 7

What is a Volume Group?

Answer 7

A group of vDisks attached to a VM directly or via iSCSI.

Question 8

What is a vDisk?

Answer 8

A file (typically >512 KB) representing a virtual disk for a VM.

Question 9

What is a Nutanix Snapshot?

Answer 9

A point-in-time copy of VM or container data for backup and recovery.

Question 10

What are OpLogs used for?

Answer 10

Persistent write buffering to enhance performance.

Question 11

What is Redundancy Factor (RF)?

Answer 11

Defines the number of failures a cluster can tolerate (RF2 = 1, RF3 = 2).

Question 12

What is Replication Factor?

Answer 12

Specifies the number of data copies at the container level.

Question 13

How many nodes can be updated at once with RF2?

Answer 13

Only one node at a time.

Question 14

What is Cluster Resiliency?

Answer 14

A feature that reserves rebuild capacity for failure recovery.

Question 15

What is Resilient Capacity?

Answer 15

Usable space after reserving for rebuilds; writes stop when full.

Question 16

What are resiliency modes in Nutanix?

Answer 16

Smart (default, AOS 6.8+) and Immediate.

Question 17

What is Erasure Coding?

Answer 17

A method to save space using parity; requires 4 nodes (RF2) or 6 (RF3).

Question 18

What is In-line Compression?

Answer 18

Compression during write operations (typically sequential I/O).

Question 19

What is Post-process Compression?

Answer 19

Compression applied to cold/random data after initial write.

Question 20

What happens when you change a compression policy?

Answer 20

Data is recompressed or uncompressed during the next background scan.

Question 21

What is Deduplication used for?

Answer 21

Removing duplicate data; ideal for VDI or full-clone VMs.

Question 22

What is an Agent VM?

Answer 22

A non-migratable VM that boots first and shuts down last.

Question 23

Which VM types are non-migratable?

Answer 23

Agent VMs, powered-off VMs, vGPU passthrough, and those with specific affinity.

Question 24

What is the Recycle Bin in Nutanix?

Answer 24

Temporarily stores deleted VMs/vDisks for 24 hours (disabled for RF1).

Question 25

How do you install an OS on a VM?

Answer 25

Use a CD-ROM drive and clone the image.

Question 26

How do you give a VM internet access?

Answer 26

Attach a network interface card (NIC).

Question 27

Where are VM Snapshots managed?

Answer 27

From the VM Dashboard in Prism.

Question 28

What is a VM-Host Affinity Policy?

Answer 28

Pins VMs to specific hosts; set via Prism UI.

Question 29

What is a VM-VM Anti-Affinity Policy?

Answer 29

Ensures VMs run on different hosts; configured via aCLI.

Question 30

What is the default virtual switch and bridge?

Answer 30

vswitch0 and br0.

Question 31

What is the default bonding mode?

Answer 31

Active-backup mode.

Question 32

Can network interfaces be modified in the Prism UI?

Answer 32

No, they are not typically modifiable.

Question 33

How to securely access CLI without a password?

Answer 33

Enable Cluster Lockdown and use SSH certificates.

Question 34

What does the network dashboard display?

Answer 34

Node details and cable types.

Question 35

Where can logs and system health be checked?

Answer 35

Health Dashboard.

Question 36

How to verify issue resolution?

Answer 36

Run an NCC Check from the Health Dashboard.

Question 37

What is an NCC Check?

Answer 37

A Nutanix Cluster Check for full, filtered, or specific checks; sends results via email.

Question 38

What is Pulse?

Answer 38

A feature that sends automated cluster data to Nutanix support.

Question 39

What’s the difference between Entity and Metric Charts?

Answer 39

Entity = multiple metrics for one item; Metric = one metric across items.

Question 40

What is Lifecycle Management (LCM)?

Answer 40

Tool for software, firmware, and driver updates.

Question 41

What is updated first during an LCM process?

Answer 41

The LCM framework itself, even in dark sites.

Question 42

When is the default LCM inventory scan scheduled?

Answer 42

3:00 AM.

Question 43

Where do you upgrade Nutanix licenses?

Answer 43

Nutanix License Support Page.

Question 44

Where to configure alert email settings?

Answer 44

Prism Element → Alerts → Settings.

Question 45

What are the support ticket priority levels?

Answer 45

P1: Cluster down, P2: Partial outage, P3: Minor issue, P4: Info/doc request.

Question 46

How many clusters must be registered to open a support ticket?

Answer 46

At least one in Prism Central.

Question 47

What boot setting is needed for Windows Defender?

Answer 47

UEFI.

Question 48

What is the default user idle timeout?

Answer 48

15 minutes.

Question 49

What is the storage protocol used for ESXi hypervisors?

Answer 49

NFS.

Question 50

How to change NTFS permissions on Nutanix File Server?

Answer 50

Use MMC Snap-In for Files.

Question 51

Which hypervisors support vGPU-enabled VMs?

Answer 51

AHV and ESXi.

Question 52

Where are Nutanix Objects deployed and upgraded?

Answer 52

Deploy and upgrade via Prism Central and LCM.

Question 53

How can alerts from lab environments be identified?

Answer 53

Prepend “LAB” in alert email subjects.