NCS-Core Exam Dumps - Nutanix Certified Services Core Infrastructure Professional (NCS-Core 6.8)
Refer to the exhibit.
After performing ESXi to AHV conversion on a cluster, the alerts shown in the exhibit display on Prism. What should the administrator do to resolve this issue efficiently?
After a consultant runs a bare metal Foundation, the imaging process fails.
In which two locations can the consultant find the logs? (Choose two.)
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?
Which two components must be identified to validate that software compatibility requirements are met for Nutanix Cluster Installation? (Choose two.)
An administrator is supporting a business critical environment and deploys metro availability to achieve a zero data loss configuration. The two clusters are connected by a 1GbE connection. A new workload is going to be deployed to this cluster. This workload requires a sustained 150MB/S of write throughput and 20MB/s of read throughput.
Which change must be made to deploy the workload successfully on this cluster?
An administrator is notified that a bare metal database server is down. This database server is being served storage using a Nutanix Volume Group. Upon investigating, the administrator finds that the disks in the database server that map to the vDisks in the volume group have gone offline.
What is causing this issue?
For a new AHV cluster installation, a customer has 20 NX-8155-G6 nodes with quad port SFP NICs.
The customer wants to meet the following guidelines:
* Take advantage of all available 10GbE links
* Achieve maximum throughput per VM
* Use of redundant ToR switches
* Fastest reconvergence during link failure
How should the load balancing be configured on the host?
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?
During a Site Readiness Check, a customer informed the consultant that there is no NTP server currently configured in the environment.
Which two statements should the consultant consider for continuing the cluster deployment? (Choose two.)
An administrator needs to install prism central for their 2550 multi-cluster environment.
How should they deploy the application?
An administrator configures authentication in Prism Central (PC) for the NTNX-Admins group. Users report that they are unable to log in. The administrator confirms that the Active Directory (AD) settings in PC are correct.
Which condition could result in this behavior?
A consultant is running Foundation. The cluster creation fails during the process. The host logs confirm that the nodes have been successfully imaged. The consultant decides to create the cluster manually.
Which command should the consultant use?
An administrator receives an error indicating that the CVMs in the cluster are not syncing to any NTP servers. An investigation of the issue finds:
• The NTP servers are configured in Prism
• The time on all CVMs is the same
• Both the CVMs and AHV hosts are configured for the UTC time zone
Which two steps can be taken to troubleshoot this issue? (Choose two.)
A consultant is installing Nutanix AOS on Cisco UCS.
Which method should be used to install AOS on UCS hardware platforms?
After uploading a hypervisor ISO during the Foundation process, a consultant sees a message that the MD5 sum for the hypervisor is not found in the Whitelist file.
Which step should the consultant take next to resolve this issue?
A customer buys ultimate licensing and wants to use the built-in Nutanix software encryption on their new AHV cluster. The customer needs to create three storage containers and asks the consultant to complete the process as fast as possible.
In which order should the cluster be deployed?
Refer to Exhibit:
A customer is preparing to expand a cluster with a consultant. The production cluster is comprised of one NX-3460-G7 and two NX-8235 G8 blocks. The running AOS version is 5.20.4.6 and Hypervisor version is ESXi 6.7 U3b. vCenter is also running a 6.7 version.
One NX-3235-G9 block will be added to that cluster (ESXI-NUTA-09 and ESXI-NUTA-10).
The consultant has verified Nutanix documentation and customer’s As-Built guide:
•NX-3060-G7 and NX-8035-G8 are hybrid HCI nodes
•ESXi 6.7 U3b is unsupported for the new G9 hardware model
•AOS 5.20.X and ESXi 6 X are end of support
•NX-3060-G7 and NX-8035-G8 hypervisors can be upgraded to the latest ESXi supported version
What actions should be taken before beginning the cluster expansion?
An administrator has two clusters: Site A and Site B.
Async DR is configured between the clusters as follows:
• Site A is the Primary Site
• Site B is the Secondary inactive Site, no VMs running
• Site A is fully in Production
• Site B used as Backup/Disaster Recovery
The customer wants to perform a planned failover between the sites.
How should the administrator accomplish this?
Which configuration item is a hard requirement to deploy a Nutanix cluster?
A customer wants to know the details of network validation testing.
Where can the consultant find this information?
An administrator is concerned that Prism will be inaccessible if Active Directory is unable to process logins. Which method should the administrator use to access the cluster in the event of this type of outage?
While creating an image placement policy on the organizations AOS 5.15-based Nutanix cluster, the administrator wants to ensure there are no restrictions on using the selected images on clusters outside of the identified set.
What type of Policy Enforcement must the administrator choose?
An administrator is trying to correct high cluster IOPs and Cluster Controller Latency. Networking is the suspected issue.
Which networking parameters should be configured in the Nutanix cluster?
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 the Internet.
Which two steps must be completed to update the firmware? (Choose two.)
An administrator needs to configure snapshots for DR scenarios. The databases get refreshed on Friday nights regularly. The search service application re-indexes the new application on Saturday nights regularly. The remaining front-end and middle tier VMs are static but do get minor version updates weekly.
The administrator needs to have 2 weeks of daily snapshots for all the VMs in an app group and 2 weeks application consist local snapshots only on Fridays, Saturdays and Sundays on the same group of VMs.
Which two options should the administrator use to configure snapshots?
A consultant and customer agree on a scope of services regarding the deployment of a new Nutanix cluster.
Which two products does this scope apply to? (Choose two.)
An administrator is deploying Nutanix Files 3.5 and needs to configure the sizing of the FSVMs for an increased number of concurrent SMB connections over the default 750.
What should the administrator do?
After installation, network ports are properly configured with the default active-backup bonding.
One 10GbE port goes to switch 1. Another 10GbE port goes to switch 2. A consultant tests failover by manually pulling one of the cables and notices it is taking too much time to failover, which is causing excessive packet loss.
What should the consultant enable to resolve this issue?
An administrator is configuring an All Flash cluster to support the following workloads:
• Full clone virtual desktops
• Hadoop
• Write heavy databases
Which three correct configuration options should the administrator use to meet the item requirements? (Choose three.)
For each procedure, indicate whether it is a correct or incorrect procedure that must be configured to meet the item requirements using the drop-down option.
An administrator recently added VLAN 205 CRM in Prism Element. The workloads attached to the associated NICs are unable to establish network connectivity.
Which Layer 2 protocol allows the administrator to troubleshoot this issue from Prism Element?
A consultant needs to review a customer’s switch port configuration to identify any issues. Other customer requirements are as follows:
* Leverage LACP
* Native VLAN will not be used
* Use Multiple Upstream switches
* Use VLANs 20-25 and 30
* LACP Fallback has been Enabled
* vPC or MLAG has been configured
What must be included in a configuration in order to meet these requirements?
Over the period of 2 to 3 weeks, a cluster displays the following:
•Periods where Warning Alerts of memory usage over 75% are asserted
•Periods where Critical Warnings of memory usage over 90% are asserted
•Periods of slow of frozen VDI desktops have caused work stoppage or slowdown
•VDI clones have periodically not powered up when called, causing work stoppage
Which steps should be used to prioritize the administrator’s troubleshooting efforts?
An administrator is migrating 5MB shares from a third-party platform to Nutanix Files with the following characteristics:
• Shares contain user profile directories
• DFS-N will be used
How should the administrator create target shares for this migration?
A customer wants to run SAP HANA on a Nutanix cluster with the following characteristics:
• AHV nodes
• SAP HANA version 2
• Production database files
Which configuration should be recommended to the customer?
An administrator needs to migrate workloads from a Nutanix cluster running VMware ESXi to Nutanix AHV. The migration process needs to be completed in multiple VM groups and support roll back in case any problems are found during user acceptance testing.
Which action should the administrator perform?
After finishing customer education during a new cluster deployment, the consultant wants to make sure all in-scope tasks have been completed.
Which document can the consultant use to verify all tasks have been closed out?
An administrator receives a notification that storage in a Nutanix cluster is unavailable. The cluster consists of five nodes and is configured with a Fault-Tolerance level of 1 (FT-1).
Upon investigation, the administrator finds the following:
• All AHV hosts are powered on and the CVMs are running
• Nodes A, B, and C are connected to one top of rack switch
• Nodes D and E are connected to a second top of rack switch
• The cluster status command run on Node A shows that CVM services on nodes D and E are down
Which issue is causing the storage outage?
An administrator needs to replace the self-signed certificate on a cluster. Which two requirements must be met as part of the process? (Choose two.)
A customer has a Nutanix cluster with 10Gb connectivity via switch fabric extenders. The administrator receives NCC health check errors of latency greater than 200ms.
Which action should the administrator take to resolve the NCC errors?
During a technical call with a customer, it is identified that this installation will be software only on Dell servers. The out-of-band management interfaces will not be given IP addresses until the consultant is onsite.
Which Foundation method should be used for this type of installation?
A consultant deploys a four-node VMware ESXi cluster and vCenter server. An HA/DRS cluster is configured for all four nodes. The customer deploys five new VMs on the cluster.
During the knowledge Transfer, a network cable on one node is removed to demonstrate HA and migration of the VMs to another host. In the HA/DRS cluster settings, the VM Restart Priority for all CVMs is set to Disabled. The customer observes warnings that the CVM on the ejected host is no longer powered on.
Which ESXi HA/DRS cluster setting is missing?
An administrator receives an alert in Prism indicating that interface eth2, on an AHV host is receiving many CRC errors. After togging into the problematic host, the following command is run to show the indicated output:
What is causing this issue?
A customer has two mission-critical applications and needs to have them backed up to a remote location. The remote location is connected using a leased line and has an average latency of 7 ms.
Which Nutanix technology will provide the shortest RPO possible?
After an onsite cluster deployment, a consultant prepares the deliverables for a project closeout.
Which two data in the As-Built Guide require adjustment or might be missing completely? (Choose two.)
A customer racks all nodes in the new cluster. The customer does not allow IPv6 for node discovery.
The consultant is not allowed to use the consultant’s own flat switch in the customer’s environment.
Which step should the consultant take to resolve this issue?
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?
An administrator is planning to deploy a Nutanix cluster to support a few high-performance VMs. This deployment will have the following considerations:
• Individual VMs will likely generate network throughputs in the range of 90-100Mbps
• Due to the configuration of the VMs, it is unlikely that a node will host more than one or two of them at a time
• Individual VMs will communicate with only a few (one or two) remote hosts at a time
• Multicast will not be used in the environment
• The hosts are connected via two 1GbE network connections
How should the administrator configure the network bonds to meet this requirement while maintaining the simplest switch configuration?
A consultant is planning to use a flat switch for installation.
What is the network requirement for Foundation VM, CVM, Hypervisor, and IPMI
After the successful creation of clusters, the customer wants to ensure that alerts are sent automatically to Nutanix support.
Which Nutanix feature should the consultant ensure is enabled?
Refer to the exhibit.
A Nutanix host is connected as shown in the exhibit with br0-up set to active/backup. Physical Switch 1 experiences a power outage causing br0-up to failover to using eth2. The CVM and host become inaccessible. User VMs restart on other hosts in the cluster, which causes a disruption to those VMs.
Which configuration issue likely caused this outage?
Refer to the exhibit.
Which IP addresses can be configured for the Foundation VM and Consultant Laptop?
A consultant is discussing VLAN tagging for a newly deployed Nutanix system. The customer requests that the the vlan dor the CVMs
and AHV hosts be placed in the customer's management VLAN 10. The customer also has VLAN 20 for production VM traffic and
VLAN 30 for backup/replication traffic.
Which VLAN should the consultant recommend for CVM and host traffic?
How should a consultant verify that a Nutanix cluster can tolerate a single-node failure?
Based on customer requirements, a consultant conducted an AHV cluster deployment. Each node is configured with four NICs.
Which two components should the consultant manually update in the As-Built Guide? (Choose two.)
A consultant is unable to ping the CVM from the hypervisor using the external interface. The customer's network is configured with the 10.3.12.0/24 subnet without VLAN tagging. The CVM and hypervisor are using the same address space.
What is causing this issue?
A customer has NearSync configured. When the administrator tries to restore a snapshot from 3 minutes ago, it is not available. The snapshots are happening at 15-minute intervals instead of at the 5-minute configured interval. When the protection domain was initially set up, the snapshots were happening at the expected 5-minute interval.
What should the customer do to enable the snapshots to happen at the expected interval?
A consultant deploys a Nutanix cluster with AOS and ESXi. The cluster is managed by a vCenter server.
After installation, what should the consultant do to ensure the cluster will support network segmentation?
An administrator is managing multiple Windows and Linux VMs connected to Nutanix Volumes. The Linux VMs are experiencing intermittent connectivity issues. The Windows VMs do not experience the same issue.
Which option should the administrator use to resolve this issue?
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 VMâ€
The message appears as each drive is upgraded.
What is the reason this message is being generated?
A consultant is running operational verifications to validate cluster behaviors
What will happen if one power supply is disconnected from a NX-3235-G9 chassis?
An administrator of a Nutanix Enterprise Cloud has microsegmentation enabled and a firewall VM installed. The security team notifies the administrator that one of the VMs hosted in the environment has been exhibiting suspect network activity. The administrator wants to isolate the VM from the production network, but must still be able to access it to perform diagnostics.
What should the administrator do to meet the requirement?
A consultant is conducting a vSphere cluster deployment. As a part of operational tests, a vMotion operation is performed on a test VM, but fails with following error message:
The VMotion failed because the ESX hosts were not able to connect over the VMotion network. Please check your VMotion network settings and physical network configuration.
VMotion [184329483:1276605211167987] failed to create connection with remote host <10.10.16.14>: The ESX hosts failed to connect over the VMotion network Migration [184329483:1276605211167987] failed to connect to remote host <10.10.16.14>: Timeout
What issue could prevent the vMotion operation from completing successfully?
A consultant is onsite with a customer running Foundation VM (FVM) and discovers that there is no connectivity between the FVM and their laptop. The consultant verifies the following:
* The consultant’s laptop and Nutanix nodes are plugged into a flat switch.
* The laptop, switch and nodes are plugged into supported power supplies.
* The laptop network adapters and FVM are configured with their corresponding IP addresses.
What is the cause for the connectivity failure to the FVM?
A consultant is deploying a Nutanix cluster at a customer location. The consultant will be deploying the latest AOS along with the latest Nutanix hardware.
Which three references should the consultant review prior to this installation? (Choose three.)
The consultant is deploying a 20-node AHV cluster, as part of a Nutanix Files deployment.
How many FSVMs can the consultant deploy in this environment?
A consultant deploys a new ESXi-based Nutanix cluster and migrates a sphere deployment to the cluster, After completing the deployment, the customer states they are experiencing VM performance issues.
Upon observing logs and performance data, the consultant identified the following symptoms.
â—¦ Excessive read/write 1/Os on CVMs
â—¦ Excessive Motion of VMs
What is causing this issue?
A systems administrator configures a protection domain replication between two Nutanix clusters. After the first successful replication , the administrator tests DR by clicking activate on the remote cluster.
While VMs are active on the remote cluster, the protection domain is marked as active on both clusters.
What steps are required to return both clusters to their original state?
During the Knowledge Transfer, the customer askes where to find the details about their Nutanix environment, such as IP addresses, storage containers, and configuration.
Where can the consultant find this information?
What is the minimum number of nodes required for a Nutanix Cluster to support Replication Factor 3 (RF3) on a storage container?
After the migration, some SQL queries take longer to execute than prior to migration.
The following SQL best practices were applied while creating the SQL VM on Nutanix:
•8 vDisks per SQL server VM
•Database and Log files on separate vDisk
•2 TempDB database drives and 1 TempDB log drive
What should the administrator to do improve the SQL Server performance?
An administrator is performing a set of routine checks and notes that Prism Central is running with 4 vCPUs and 21 GB RAM. The organizations environment is based on two Nutanix clusters with 170 VMs plus a Legacy vSphere infrastructure. No manual changes have been done on Prism Central VM.
Which configuration justifies the current Prism Central configuration?
Refer to the exhibit.
An administrator logs in to Prism and sees the status shown in the exhibit within the Hardware Diagram section.
What should the administrator do?
A customer would like to re-image an existing cluster. The Foundation Applet and Foundation VM is unavailable to them.
How can the consultant access Foundation-as-a-Service (FaaS)?
Refer to Exhibit:
A consultant is conducting cluster deployment using Foundation VM on a laptop.
What troubleshooting step is required?
At which prompt should a consultant execute the command nanage_ovs —bridge_nawe brO show_uplinks in a Nutanix cluster?
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 consultant creates a Nutanix cluster using the 10.10.10.0/24 network and VLAN 10. The customer creates a VM network inside the Prism using VLAN 20. The customer starts to create VMs but is unable to ping the default gateway from these new systems.
What is causing the issue?
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 customer has the following requirement for a Nutanix cluster:
- Must support high-performance Nutanix Volumes iSCSI workloads
- Must utilize AHV nodes
- Must use 10 GbE interface
How should the customer optimize networking?
What reference materials should be provided to the customer during the Knowledge Transfer?
An administrator manages the following two Nutanix AOS 5.15 cluster environment:
• Corp-cluster-01
• Corp-cluster-02
The VM images must be available only on Corp-cluster-01, but cannot be checked out to cluster Corp-cluster-02. The images also cannot be checked out to any other clusters that are registered with Prism Central in the future.
Which two configuration settings must the administrator choose when creating the image placement policy that satisfies the stated requirements? (Choose two.)
During the Foundation imaging process, nodes are successfully imaged, but the cluster creation fails.
Which log should the consultant review to determine the cause?
A consultant wants to expand a Nutanix cluster based on Dell PowerEdge servers and notices the nodes have arrived software-less.
Which two actions should the consultant take to expand the cluster? (Choose two.)
An administrator finds that home shares cannot be configured in a new Files 3.5 deployment. Why is this happening?