NCS-Core Dumps PDF - NCS-Core Real Exam Questions Answers
Get Started: NCS-Core Exam [2024] Dumps Nutanix PDF Questions
NEW QUESTION # 35
An administrator needs to make sure an RF3 cluster can survive a failure of two complete racks without negatively affecting performance. The current cluster configuration consists of the following:
* 30 All Flash Nodes: distributed 10 nodes per rack across three 42U racks
* Each node is configured with 20TB usable storage all flash (Cluster Total 600TB Usable)
* Current cluster utilization is 500TB storage
* Storage containers have Erasure Coding enabled
Which configuration changes should be made to make sure the cluster meets the requirements?
- A. Expand the cluster to 40 nodes distributed evenly across 5 racks
- B. Expand the cluster to 60 nodes distributed evenly across 6 racks
- C. Expand the cluster to 48 nodes distributed evenly across 6 racks
- D. Expand the cluster to 50 nodes distributed evenly across 5 racks
Answer: B
Explanation:
Explanation
Ref:https://portal.nutanix.com/page/documents/details?targetId=Web-Console-Guide-Prism-v5_17:arc-configure
NEW QUESTION # 36
An administrator finds that home shares cannot be configured in a new Files 3.5 deployment. Why is this happening?
- A. The system is deployed as a single FSVM.
- B. Access Based Enumeration is not enabled.
- C. Multi-protocol access is not configured.
- D. NFS default access is set to Read Only.
Answer: A
Explanation:
NEW QUESTION # 37
A consultant finishes creating a new ESXi cluster. The consultant connects to the nodes via laptop and a personal flat switch. The host/CVM network is on VLAN 23. The customer has the native VLAN on the ToR switches set to 23.
The customer wants to use LACP. Before placing the nodes on the customer network, the consultant tags VLAN 23 for each host and CVM. The consultant connects the nodes to the customer network and finds that they are unreachable.
What is causing this issue?
- A. The hosts have not been migrated to a vSphere Distributed Switch.
- B. The customer has LACP fallback enabled on switch ports.
- C. Under the vSwitch0 settings, the consultant did not select Route based on IP hash.
- D. The host and CVM are incorrectly configured.
Answer: A
NEW QUESTION # 38
A guest VM is reported to have poor storage performance. It has an I/O profile of 80% read. 20% write, and the HDDs form more than 50% of the read source.
What should an administrator do to resolve this issue?
- A. Increase the OPLOG
- B. Increase SSD capacity
- C. Use HDDs with higher RPM
- D. Increase the write cache
Answer: B
Explanation:
Ref:
https://portal.nutanix.com/page/documents/solutions/details?targetId=BP-2126-SAS-on-Nutanix:BP-2126-SAS-o
NEW QUESTION # 39
An administrator needs to make sure an RF3 cluster can survive a failure of two complete racks without negatively affecting performance. The current cluster configuration consists of the following:
* 30 All Flash Nodes: distributed 10 nodes per rack across three 42U racks
* Each node is configured with 20TB usable storage all flash (Cluster Total 600TB Usable)
* Current cluster utilization is 500TB storage
* Storage containers have Erasure Coding enabled
Which configuration changes should be made to make sure the cluster meets the requirements?
- A. Expand the cluster to 40 nodes distributed evenly across 5 racks
- B. Expand the cluster to 60 nodes distributed evenly across 6 racks
- C. Expand the cluster to 48 nodes distributed evenly across 6 racks
- D. Expand the cluster to 50 nodes distributed evenly across 5 racks
Answer: B
NEW QUESTION # 40
Refer to the exhibit.
An administrator has an existing cluster and needs to improve performance using AHV Turbo. Which two items are required to achieve even greater performance? (Choose two.)
- A. VMs have one vCPU configured.
- B. VMs have multi-queue disabled.
- C. VMs have more than one vCPU.
- D. Workloads are multi-threaded.
Answer: C,D
Explanation:
NEW QUESTION # 41
The installation process stops before imaging any of the nodes and an error message is displayed notifying the IPMI IP address is unreachable.
What should consultant do to fix the issue?
- A. Check the service. log and the individual node log files for more detailed information.
- B. if the nodes are in the same subnet go to the Cluster page and configure multi-homing.
- C. Re-try Foundation using a non-flat switch.
- D. Ensure the Foundation VM is not in the same broadcast domain as the Controller VMs.
Answer: A
Explanation:
When facing an error during the installation process that the IPMI IP address is unreachable:
* C. Check the service.log and the individual node log files for more detailed information: Reviewing these log files will provide insights into what might be causing the IPMI connectivity issue, offering specific error messages or network configuration problems that need resolution.
References:
* Nutanix Bible (https://www.nutanixbible.com), where troubleshooting and log analysis are discussed.
* Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com), focusing on Foundation troubleshooting and the use of log files to diagnose installation issues.
NEW QUESTION # 42
While reviewing the BOM during the kickoff call, a consultant notices that there are six NX nodes and 12 SFP+ modules, but no fiber cables are listed.
Which statement is correct regarding this scenario?
- A. Only copper cables, not fiber cables, are required for SFP* modules.
- B. The consultant should remind the customer that it is their responsibility to procure compatible fiber cables.
- C. Nutanix provides fiber cables based on the fiber channel ports on the server.
- D. The customer can use any fiber cable from existing network devices.
Answer: B
Explanation:
When deploying Nutanix hardware, it is essential to ensure that all necessary components are included in the Bill of Materials (BOM). In this case, the BOM includes SFP+ modules but lacks the fiber cables needed for connectivity. The SFP+ modules indicate a requirement for fiber optic cables, and it's crucial for the consultant to ensure the client understands their responsibility to procure compatible cables. Nutanix typically does not provide fiber cables as these are considered network infrastructure components, which vary based on specific network requirements and setups.References:
* Nutanix University - NCS-Core 6.8 Learning Path
* The Nutanix Bible (https://www.nutanixbible.com/)
* Nutanix TechTalks and Learning Videos
(https://www.youtube.com/playlist?list=PLAHgaS9IrJecs_AcQT3Y7vSsKT2mjz3Iu)
NEW QUESTION # 43
An administrator knows that the disks in a cluster are out of date and a new firmware is available. For security reasons, these clusters do not have access to theInternet.
Which two steps must be completed to update the firmware? (Choose two.)
- A. Select Upgrade Software, then select disks and upload the updated firmware.
- B. Download a dark site bundle and stage it on an internal webserver.
- C. Configure LCM with a URL to access the firmware bundle.
- D. Download the updated firmware .tgz file from the Nutanix portal.
Answer: B,C
NEW QUESTION # 44
An administrator needs to make sure an RF2 cluster can survive a complete rack failure without negatively effecting workload performance. The current cluster configuration consists of the following:
* 30 nodes: distributed 10 nodes per rack across three 42U rack
* Each nodes is configured with 40TB usable storage all flash (Cluster Total 1.2 PB Usable)
* Current cluster utilization is 900TB storage
Which configuration changes should be made to make sure that the cluster meets the requirements?
- A. Expanse the cluster by adding 8 nodes to a new 42U rack
- B. Expanse the cluster by adding 3 additional nodes per rack, 9 nodes total.
- C. Expanse the cluster by adding 2 additional nodes per rack, 6 nodes total.
- D. Expanse the cluster by adding 9 nodes to a new 42U rack
Answer: B
Explanation:
In Nutanix, a cluster with RF2 (Redundancy Factor 2) can tolerate the failure of a single node or drive1.
However, to ensure that the cluster can survive a complete rack failure without negatively affecting workload performance, we need to consider rack awareness. When rack fault tolerance is enabled, the cluster has rack awareness and the guest VMs can continue to run with failure of one rack (RF2) or two racks (RF3). The redundant copies of guest VM data and metadata exist on other racks when one rack fails2.
Given the current cluster configuration (30 nodes distributed 10 nodes per rack across three 42U racks), adding
3 additional nodes per rack (9 nodes total) would increase the redundancy of the cluster and improve its ability to withstand a complete rack failure. This is because the additional nodes would provide more storage capacity and compute resources, allowing the cluster to continue running workloads even if one rack fails.
References:
* Understanding Fault Domains and Rack Awareness | Nutanix Community
* RF2 -> RF3 | Requirements | Nutanix Community
NEW QUESTION # 45
An organization subscribes to field advisories from the Nutanix support portal. An administrator receives an email about a rare problem that could cause cluster instability and affect the entire AOS cluster. The organization is running Vmware vsphere 6.x on Nutanix.
What action should be taken to resolve this issue?
- A. Open Prism Element and select Upgrade Software to update AOS.
- B. Use VMware Update Manager to update the cluster.
- C. File a ticket to NutanixSupport and provide the Field Advisory ID.
- D. In Prism Central, select Life Cycle Management and perform LCM update.
Answer: D
NEW QUESTION # 46
A customer is running out of storage in an ESXi cluster. The customer wants to add storage without paying for an additional hypervisor license.
Which option should the consultant recommend to meet the requirement?
- A. Buy a new node to meet the requirements of the storage-only node specifications.
- B. Convert the cluster to AHV to support storage-only node requirements.
- C. Select the storage-only checkbox during Foundation and then expand the cluster in Prism.
- D. Edit the factory_config.json file to configure the node as storage-only and then expand the cluster in Prism
Answer: B
Explanation:
When a customer needs to add storage to an ESXi cluster without incurring additional hypervisor licensing costs, converting the cluster to Nutanix AHV presents a viable solution. AHV allows the incorporation of storage-only nodes, which can extend the cluster's storage capacity without necessitating additional licenses for hypervisor usage.
References:
* Nutanix Solutions for ESXi to AHV Migration: Nutanix Documentation
* Nutanix AHV Licensing and Features Guide: Nutanix Licensing Information
NEW QUESTION # 47
Refer to the exhibit.
An administrator configures Active Directory authentication as shown in the exhibit. Upon finishing setup, users are not able to log in.
What configuration change should be made to fix this issue?
- A. Change the plct from 389 to 636
D Change the Domain to use an IP rather than a name - B. Change the Directory URL to use an IP rather than a name
- C. Change leaps to https
Answer: A
Explanation:
Ref:
https://portal.nutanix.com/page/documents/details?targetId=Prism-Central-Guide-Prism-v510:mul-security-authe
NEW QUESTION # 48
A customer is considering increasing the Redundancy Factor from 2 to 3 for a Nutanix cluster in their existing environment.
Which option would provide the company with the optimal solution?
- A. Three Compute Nodes with 40% available disk space
- B. Five Compute Nodes with 40% available disk space
- C. Six Compute Nodes with 25% available disk space
- D. Four Compute Nodes with 25% available disk space
Answer: C
Explanation:
To increase the Redundancy Factor (RF) from 2 to 3, at least five nodes are required for the cluster to function correctly with RF3, as each data block needs to be replicated to three different nodes. However, the optimal solution that offers both the necessary node count and sufficient storage overhead is:
* Six Compute Nodes with 25% available disk space: This configuration ensures that there are enough nodes to support RF3 while maintaining adequate storage capacity for redundancy without overutilization.
References:
* Nutanix Bible (https://www.nutanixbible.com), particularly the sections on redundancy factors and node requirements.
* Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com), focusing on cluster scaling and redundancy considerations.
NEW QUESTION # 49
From a hypervisor, which IP address should the consultant use to connect to the locally tossed on?
- A. 192.168.1.254
- B. 10.100.5.5
- C. 192.168.5.254
- D. 172.16.19.2
Answer: C
Explanation:
When configuring network settings for a hypervisor or accessing local services hosted on it, the IP address must be reachable from the network configuration you are currently using. Given the generic nature of the options, the correct choice typically depends on the subnet used for management purposes, which often uses a standard private address. "192.168.5.254" is a common choice for local network configurations and is likely set up as the gateway or a primary network interface on the hypervisor.References:
* Nutanix University - NCS-Core 6.8 Learning Path
* The Nutanix Bible, Network Configuration chapter (https://www.nutanixbible.com/)
NEW QUESTION # 50
A consultant is viewing an ESXi host via console without external network connectivity.
Which two IP addresses can be used to connect to the CVM (Choose two.)
- A. 192.168.5.253
- B. 192.168.5.1
- C. 192.168.5.254
- D. 192.168.5.2
Answer: C,D
NEW QUESTION # 51
A consultant is preparing to add new nodes into an existing cluster. The current cluster AOS version is 5.8.
The new expansion node is currently running AOS 5.9 code. The cluster must continue to run at its current AOS version.
Which method can be used to successfully add the node?
- A. Upgrade the cluster to 5.9 and add the node through Prism Element.
- B. Use Prism Element, which will downgrade the node by default during the node add process.
- C. Use Prism Element to Expand the cluster and select the re-image option.
- D. Use the CLI and enter cluster add-node node-serial="node_serial".
Answer: C
Explanation:
When adding a new node with a higher AOS version (5.9) into an existing cluster running an older version (5.8), the recommended method is to use Prism Element to expand the cluster and select the re-image option.
This process involves re-imaging the new node to the AOS version currently running in the cluster (5.8), ensuring compatibility and stability across the cluster without requiring an overall upgrade to a newer version.
This approach maintains the cluster's operational integrity while integrating the new hardware.References:
Nutanix Bible, NCS-Core 6.8 official training materials, and Nutanix support documentation on cluster expansion.
NEW QUESTION # 52
Refer to the exhibit.
An administrator receive the warningmassages shown in the exhibit while validating cluster conversion from EXSi to AHV.
What should the administrator do to address this warning in v Center Server?
- A. Remove the standby adapters under Teaming and Failover.
- B. Remove adapters that are active but not homogeneous.
- C. Keep homogeneous adapter as active and standby
- D. Keep active adapters od different speeds as active standby
Answer: C
NEW QUESTION # 53
After deploying an AHV cluster connected to Cisco Nexus 9k switches, unexpected network behavior is observed. The consultant needs to rule out physical network mis-cabling without returning to the datacenter.
Which command from the host should the consultant run?
- A. show cdp neighbors
- B. show interfaces
- C. show lldp neighbors
- D. lldpctl
Answer: D
NEW QUESTION # 54
An administrator is monitoring the Nutanix v5.15-based AOS cluster performance logs and notices that a SQL server VM is greatly exceeding its intended maximum IOPS.The administrator has confirmed that a QoS policy was previously created for the group of VMs this server is a member of.
What are two reasons that this VM would exceed its maximum configured IOPS from the QoS Policy?
(Choose two.)
- A. It was cloned from another SQL Server VM that was a member of the QoS Policy.
- B. The VM is missing the required snapshot needed to implement the QoS Policy.
- C. The SQL Server VM has volume groups attached.
- D. The VM was not created as an AFS virtual machine.
Answer: C,D
Explanation:
Explanation
Ref:https://portal.nutanix.com/page/documents/details?targetId=Prism-Central-Guide-Prism-v5_18:mul-storage-
NEW QUESTION # 55
A consultant is working on an expansion project for a customer that has an existing 7-node RF2 cluster. The customer has purchased four more nodes to add to the cluster. All of the hardware is identical between the existing hardware and newly purchased hardware.
Currently, the 7-node cluster has the following utilization:
*CPU: 48%
*Memory: 66%
*Storage: 91%
During the kick-off call, the customer mentioned they'd like to reserve storage capacity on the cluster if a node were to fail in the future.
What's the safest and best way to implement this on the cluster?
- A. Enable Reserve Rebuild Capacity and expand the cluster with the additional nodes.
- B. Expand the cluster with the additional nodes and enable HA reservation.
- C. Enable HA reservation and expand the cluster with the additional nodes.
- D. Expand the cluster with the additional nodes and enable Reserve Rebuild Capacity.
Answer: D
Explanation:
The most efficient and safest way to implement the customer's desire to reserve storage capacity for future node failures after expanding their existing 7-node RF2 cluster with four additional nodes is to first expand the cluster with the additional nodes, and then enable the Reserve Rebuild Capacity setting. This approach allows the cluster to immediately benefit from increased storage and other resources provided by the additional nodes, which can then be partially reserved to handle potential future failures. This method ensures both an increase in total capacity and the preservation of operational integrity during node failures.References: Nutanix Prism User Guide, Nutanix Best Practices for Cluster Expansion.
NEW QUESTION # 56
Where in the Support Portal is the Best Practices guide for vSphere Networking located?
- A. Knowledge Base
- B. Software Documentation
- C. Solutions Documentation
- D. Product Notices
Answer: C
NEW QUESTION # 57
A consultant needs to image nodes that cannot be discovered with the Foundation VM The nodes are connected to a flat stitch and are already part of a Nutanix cluster.
What course of action would result in Foundation success?
- A. Use the customer's top of rack switch.
- B. Bare metal image the nodes.
- C. Change the physical connections.
- D. Buy a new flat switch.
Answer: B
Explanation:
If nodes cannot be discovered using the Foundation VM and they are already part of a Nutanix cluster, the best course of action is to bare metal image the nodes. This process involves re-imaging the nodes from scratch, which can resolve discovery and communication issues that may be caused by existing configurations or errors within the cluster's networking setup.References: Nutanix Bible, Nutanix University NCS-Core 6.8 learning materials
NEW QUESTION # 58
An administrator is deploying several new application VMs to a Nutanix cluster. The application is very transactional with a 28/72 random, read/write ratio.
What should the administrator do?
- A. Add one large SSD to each node and enable Flash Mode for the VMs.
- B. Add one large virtual disk to each VM. and use it for all application data.
- C. Add a minimum of four virtual disks to each VM, and aggregate them on guest OS level.
- D. Add a minimum of four SSDs to each node to ensure all writes go to the SSDs.
Answer: C
Explanation:
Ref: https://next.nutanix.com/server-virtualization-27/iops-latency-issue-1168
NEW QUESTION # 59
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The NCS-Core exam is a vendor-neutral certification that is recognized globally. It is an excellent way for IT professionals to demonstrate their expertise in Nutanix core infrastructure services and differentiate themselves in the job market. Nutanix Certified Services Core Infrastructure Professional certification is also an excellent way for organizations to validate the skills of their employees and ensure that they have the necessary expertise to manage their Nutanix deployments.
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