Nutanix NCS-Core Nutanix Certified Services Core Infrastructure Professional Online Training
Nutanix NCS-Core Online Training
The questions for NCS-Core were last updated at May 10,2025.
- Exam Code: NCS-Core
- Exam Name: Nutanix Certified Services Core Infrastructure Professional
- Certification Provider: Nutanix
- Latest update: May 10,2025
An administrator is updating disk firmware using LCM and receives the following message:
“there have been 10 or more cluster services restarts within 15 minutes in the Controller VM”
The message appears as each drive is upgraded.
What is the reason this message is being generated?
- A . A node has been rebalanced
- B . A drive has been reformatted
- C . A node has been rebooted
- D . A drive has been ejected
A new Nutanix cluster is ready for production on a remote site with no IT staff. Changes to the infrastructure will cost money and probably cause a cluster stop.
The administrator needs to perform a health check on the environment that should include:
• Network connectivity checks
• Network performance status
• Storage performance status
Which tool should be used to perform this test?
- A . X-Ray
- B . clurator_cli
- C . NCC
- D . diagnostic, py
An administrator is deploying an application using Nutanix Volumes. After configuring the volume group and connecting the guest’s iSCSI initiator to the volume group, they begin performance testing.
The administrator learns that performance on the virtual disk attached to the iSCSI initiator is far less than that of a virtual disk connected directly to the VM.
Which situation is causing this condition?
- A . The VM’s iSCSI traffic is being routed to the data services IP subnet
- B . The performance test is generating small block random 10.
- C . The duster data services IP address is a bottleneck, shared with other iSCSI traffic
- D . Data Locality ensures that VM attached disks are always faster than iSCSI volumes.
An administrator learns that some security settings in a cluster have been changed. The environment is out of compliance with required policies.
Which function should be used to revert any settings that have changed from the defaults and prevent further violations?
- A . Cluster Lockdown with strong password enforcement
- B . Advanced Intrusion Detection Environment (AIDE)
- C . Security Configuration Management Automation (SCMA)
- D . Defense Information Systems Agency STIG enforcement
An administrator receives reports about a Nutanix environment.
The investigation finds the following;
• VMs are experiencing very high latency
• Each node is equipped with a single SSD, utilized at 95%
• Each node is equipped with three HDDs, utilized at 40%
Why are the guest VMs experiencing high latency?
- A . CVMs are overwhelmed by disk balancing operations.
- B . All VM write operations are going to HDD.
- C . All VM read operations are coming from HDD.
- D . VMs are unable to perform write operations.
An administrator has an existing Nutanix seven-node cluster running at RF2 that must be changed to have the following capabilities:
• RF3 set for the cluster
• Performance tier deduplication
What is the minimum memory needed on the CVMs to allow for these capabilities?
- A . 24GB
- B . 28GB
- C . 32GB
- D . 20G?
A customer has Metro Availability configured in Automatic Resume Mode between Site A and Site B.
What happens to VMs if Primary Site A has full network failure?
- A . Automatic protection domain promotion in Site
- B . VMs automatically restart in Site B
- C . VMs continue to run on Site A following an automatic disable of protection domains.
- D . An administrator must unwitness in Site B and promote protection domains in Site B for VMs to restart
- E . An administrator must promote protection domains in Site B for VMs to restart.
An administrator is responsible for the following Nutanix Enterprise Cloud environment:
• A central datacenter with a 20-node cluster with 1.5PB of storage
• Five remote sites each with a 4-node cluster with 200TB storage
The remote sites are connected to the datacenter via 1GB links with an average latency of 6 ms RTT.
What is the minimum RPO the administrator can achieve for this environment?
- A . 0 minutes
- B . 15 minutes
- C . 1 hour
- D . 6 hours
A VM does not have enough resources for the demand, which leads to performance bottlenecks.
The VM is exhibiting one or more of following baseline values, based on the past 30 days:
• CPU usage > 90% (moderate), 95% (high)
• CPU ready time > 5%, 10%
• Memory usage > 90%, 95%
• Memory swap rate > 0 Kbps (no moderate value).
Which type of VM is being described?
- A . Constrained VM
- B . Bully VM
- C . Inactive VM
- D . Over-provisioned VM
A Nutanix cluster is deployed with the following configuration:
• Three four-node blocks (A, B, and C)
• All Flash Redundancy Factor 2
What is the effect of simultaneous disk failures on two nodes located in block A?
- A . VMs are migrated off of the nodes with disk failures.
- B . Each node with a failed disk is marked as degraded.
- C . VM read and write operations continue normally.
- D . VMs on the nodes with failed disks are unable to write data
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