Nutanix NCS-CORE Online Practice Questions and Exam Preparation

Nutanix NCS-CORE Online Questions & Answers

• Question 151:

  A consultant is running Foundation discovery with Foundation VM and is unable to dynamically discover the nodes. The consumer needs another method to image the nodes.

  What information does the consultant need to do bare metal Foundation?

  A. Serial # of Block
  B. IPMI MAC Address
  C. LAN MAC Address
  D. Serial # of Node
  B. IPMI MAC Address

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  Explanation/Reference:

  When using the Foundation tool for bare metal imaging of Nutanix nodes and dynamic discovery is not possible, the consultant needs the IPMI MAC Address of the nodes. This address is used to identify each node uniquely through its IPMI for remote management purposes, allowing the Foundation VM to interact directly with each node's base management controller (BMC) for the imaging process.References: Nutanix Bible, Nutanix University NCS-Core 6.8 learning materials

• Question 152:

  In a 20-node ESXi deployment, the customer needs additional resiliency to survive the loss of two nodes concurrently. Which configuration should the consultant use to ensure that the appropriate resources are available?

  A. Storage reservation for 10%; HA admission control for 10%, cluster RF3
  B. Storage reservation for 5%; HA admission control for 5%, cluster RF2
  C. Storage reservation for 5%; HA admission control for 5%, cluster RF3
  D. Storage reservation for 10%; HA admission control for 10%, cluster RF2
  C. Storage reservation for 5%; HA admission control for 5%, cluster RF3

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  Explanation/Reference:

  To ensure additional resiliency in a 20-node ESXi deployment capable of surviving the concurrent loss of two nodes, the consultant should configure the system with a storage reservation and HA (High Availability) admission control each set to 5%, combined with a cluster redundancy factor (RF) of 3. RF3 provides the capability to tolerate the failure of up to two nodes without data loss, thus enhancing the cluster's resilience. This configuration is optimal for maintaining cluster availability and integrity during multiple node failures.References: Nutanix Bible, Nutanix University

• Question 153:

  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. 16
  B. 18
  C. 20
  D. 22
  A. 16

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  Explanation/Reference:

  In a Nutanix Files deployment within a 20-node AHV cluster, the consultant can deploy a maximum of 16 FSVMs (File Server Virtual Machines). This limitation is based on Nutanix's best practices and design considerations for scalability and performance. The number of FSVMs that can be effectively managed and maintained without degrading the performance of the file-serving operations or the underlying storage infrastructure dictates this maximum.

  References: Nutanix Certified Services - Core (NCS-Core) Learning Documents Nutanix Bible: https://www.nutanixbible.com Nutanix University Videos: https://www.youtube.com/playlist?list=PLAHgaS9IrJecs_AcQT3Y7vSsKT2mjz3Iu

• Question 154:

  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.)

  A. Release Notes
  B. Software Product Interoperability
  C. Field and Security Advisories
  D. End-Of-Life (EOL) Information
  E. Acropolis Advanced Administration Guide
  A. Release Notes
  B. Software Product Interoperability
  C. Field and Security Advisories

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  Explanation/Reference:

  When deploying the latest AOS along with the latest Nutanix hardware, it is essential for the consultant to review multiple sources of information to ensure a successful installation. Release Notes provide details about new features, improvements, and known issues in the latest version of AOS. Software Product Interoperability outlines compatibility between different software versions, ensuring that the AOS and any integrated applications or environments will function correctly. Field and Security Advisories inform about potential security issues and recommended practices to avoid common pitfalls or security risks.

  References: Nutanix Bible: Documentation and Release Information Nutanix University: Installation and Security Best Practices

• Question 155:

  During an AHV upgrade, a database VM automatically migrated to another host. A customer is concerned about potential storage performance impact.

  Which statement addresses the customer's concern?

  A. Shadow clones mitigate the need for data locality.
  B. Data locality is not required on all flash nodes.
  C. Mirroring the database on two VMs eliminates the need for data locality.
  D. AHV's built in scheduler automatically restores data locality.
  D. AHV's built in scheduler automatically restores data locality.

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  Explanation/Reference:

  Addressing the customer's concern regarding the potential storage performance impact after a VM migration, it's important to note that Nutanix AHV includes intelligent scheduling mechanisms. AHV's built-in scheduler automatically works to restore data locality after VM migrations. Data locality refers to the placement of data close to the VM consuming it, which optimizes read and write operations by reducing latency. After migration, the scheduler actively moves data to ensure it is close to its consuming VM, thereby minimizing any adverse impacts on storage performance.

  References: Nutanix AHV Administration Guide: Nutanix Documentation Nutanix Data Locality and Benefits: Nutanix Portal

• Question 156:

  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. The CVM/hypervisor must be on an untagged VLAN.
  B. The switch port is not set up as a trunk.
  C. Only one VLAN is supported on AHV.
  D. The CVM/hypervisor cannot use the same VLAN as guest VMs.
  B. The switch port is not set up as a trunk.

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  Explanation/Reference:

  The issue of VMs not being able to ping the default gateway from a newly created VM network on VLAN 20, while the Nutanix cluster uses VLAN 10, most likely stems from the switch port configuration. For the VMs on VLAN 20 to communicate outside their local network, the switch port to which the Nutanix nodes are connected must be configured as a trunk. This configuration allows multiple VLANs to coexist on the same physical port and enables routing between them. Without the trunk setup, the VLAN 20 traffic is restricted and cannot reach the network beyond the switch, including the default gateway.References: Nutanix Network Configuration Guide, Best Practices for VLAN Configurations.SZXCDESX

• Question 157:

  A customer wants to validate the Microsoft SQL workload performance for a CRM application before migration to the new Nutanix cluster.

  Which activity must the consultant add as part of the test plan to fulfill this requirement?

  A. X-Ray with OLAP Workload.
  B. Run perfmon on guest VM.
  C. X-Ray with OLTP Workload.
  D. Run perfmon on all CVMs.
  C. X-Ray with OLTP Workload.

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  Explanation/Reference:

  To validate the performance of a Microsoft SQL workload for a CRM application, using X-Ray with an OLTP (Online Transaction Processing) Workload is most suitable. OLTP workloads simulate typical transactional database operations which are representative of CRM application usage, providing accurate insights into expected performance on the Nutanix platform.

  References:

  Nutanix Bible (https://www.nutanixbible.com), specifically the sections on performance testing tools and methodologies.

  Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com), detailing how to use X-Ray for specific application testing.

• Question 158:

  In a Nutanix cluster, a Protection Domain contains 50 entities that are replicated to a remote Single Node Replication Target.

  The current schedule configuration is as follows:

  1.

  Repeat every 6 hours

  2.

  Local Retention Policy 1

  3.

  Remote Retention Policy 8

  4.

  Starting time 12 am

  At 8 am on Monday, the administrator discovers that a protected VM is corrupted. The latest good state was Sunday 2 pm. The administrator needs to maintain current protection.

  Which strategy should the administrator use to meet these requirements?

  A. From the Remote site, activate the Protection Domain, then re-protect the entity.
  B. From the Remote site, restore the VM from the local snapshot by selecting the correct snapshot
  C. From the local site, retrieve the correct remote snapshot, then restore the VM locally.
  D. From the local site, restore the VM from the local snapshot by selecting the correct snapshot.
  C. From the local site, retrieve the correct remote snapshot, then restore the VM locally.

• Question 159:

  A customer with a four-node RF2 cluster is adding application VMs to their system. After adding these VMs, the Prism dashboard shows 81% storage utilization.

  What is the consequence of running the cluster at 81% storage utilization?

  A. The customer has the ability to add more VMs up to the 100% storage utilization.
  B. There is available capacity in the storage fabric and the cluster is resilient.
  C. Node failure is imminent due to storage utilization.
  D. The cluster is not resilient in the storage fabric
  D. The cluster is not resilient in the storage fabric

• Question 160:

  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. A role mapping needs to be associated with the AD group.
  B. The users must be added to the Domain Admins AD group.
  C. The Local authentication type must also be selected in PC.
  D. A client chap certificate must also be added in PC.
  B. The users must be added to the Domain Admins AD group.

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  Explanation/Reference:

  https://portal.nutanix.com/page/documents/details?targetId=Prism-Central-Guide-Prism-v5_10:mul-security-role-permissions-pc-t.html