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無料Nutanix NCS-Coreテスト練習問題試験問題集
質問 # 100
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?
- A. Image each node individually with Foundation VM.
- B. Bare metal image all nodes with Foundation VM.
- C. Open a console to all nodes and statically assign IP addresses.
- D. Connect to the top of rack switch and discover the nodes with IPv4.
正解：C
質問 # 101
Refer to the exhibit.
A consultant migrated multiple VMs to a new cluster. VMs were previously in VLAN 10.
Why can the VMs no longer communicate on their network?
- A. The VNIC type should be set to VMXNET2.
- B. The GuestOS firewall is blocking traffic in the new cluster.
- C. Static IP addresses have not been assigned to the new VMs.
- D. The VLAN ID is incorrect.
正解：D
解説：
In scenarios where VMs have been migrated to a new cluster and they were previously on VLAN 10 but can no longer communicate, the most likely cause is that the VLAN ID setting on the virtual network interface cards (VNICs) of the VMs does not match the VLAN configuration of the new network. Ensuring that the VLAN IDs are correctly set to match the network configuration of the new cluster is essential for proper network communication.References:
* Nutanix University - NCS-Core 6.8 Learning Path
* The Nutanix Bible, Networking chapter (https://www.nutanixbible.com/)
質問 # 102
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. Utilize Metro Availability to meet this requirement
- B. Change the protection domain to use Async DR
- C. Configure the protection domain to take snapshots on 15-minute intervals
- D. Fix a connectivity issue because the protection domain reverted to Async
正解：D
解説：
If the administrator observes that the snapshot intervals have changed from the initially configured 5-minute intervals to 15-minute intervals, it indicates a potential issue with the setup. Option C, "Fix a connectivity issue because the protection domain reverted to Async," addresses the likely cause-a connectivity problem that caused the system to revert to longer, asynchronous DR snapshot intervals.
NearSync typically allows for very frequent snapshots, but if there is a connectivity or configuration issue, it might fall back to less frequent asynchronous DR settings. Identifying and resolving any connectivity issues would allow the NearSync configuration to operate as initially intended.
References:The mechanics of NearSync and its behavior under connectivity issues are discussed in detail in Nutanix's documentation and troubleshooting guides, which describe how the system handles fallback scenarios and how to rectify them.
質問 # 103
Where in the Support Portal can it be determined if a version of AOS is supported on a particular hardware platform.
- A. Compatibility and Interoperability Matrix
- B. Solution Documentation
- C. Hardware Compatibility Lists
- D. Upgrade Paths
正解：A
解説：
To determine if a version of Acropolis Operating System (AOS) is supported on a specific hardware platform, the "Compatibility and Interoperability Matrix" section of the Nutanix Support Portal should be consulted.
This resource provides detailed information on supported hardware for different AOS versions, ensuring that all components are compatible and supported for optimal operation.References: Nutanix Bible, Nutanix University NCS-Core 6.8 learning materials
質問 # 104
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 multi-queue disabled.
- B. Workloads are multi-threaded.
- C. VMs have more than one vCPU.
- D. VMs have one vCPU configured.
正解：B、C
解説：
To maximize the performance benefits of AHV Turbo, which is designed to optimize network and storage I/O operations for VMs, certain VM configurations are advantageous. The correct answers are:
Option A, "Workloads are multi-threaded." Multi-threaded applications can better utilize the improvements in I/O processing efficiency provided by AHV Turbo, leading to better overall performance.
Option D, "VMs have more than one vCPU." This configuration allows VMs to handle multiple processes or threads simultaneously, which is particularly beneficial when combined with AHV Turbo's enhanced I/O operations.
References:The benefits of configuring VMs with multiple vCPUs and supporting multi-threaded applications are discussed in Nutanix's documentation on AHV and performance optimization, where AHV Turbo is highlighted for its ability to accelerate VM operations in a Nutanix environment.
質問 # 105
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. There is available capacity in the storage fabric and the cluster is resilient.
- B. The cluster is not resilient in the storage fabric
- C. Node failure is imminent due to storage utilization.
- D. The customer has the ability to add more VMs up to the 100% storage utilization.
正解：B
解説：
https://next.nutanix.com/how-it-works-22/recommended-maximum-storage-utilization-37234
質問 # 106
An administrator needs to expand a cluster based on AHV and running on Nutanix G5 hardware with a new Nutanix G7system. The cluster is running AOS 5.10 but the operation fails when expanding the cluster. AOS is running on the new system. There are no issues discovering the node.
Why is the operation failing?
- A. EVC needs to be configured before cluster expansion
- B. G7 hardware cannot be added to a G5 cluster.
- C. AOS version running on G7 is older than the version onthe cluster.
- D. Foundation software has not been updated on the cluster.
正解：C
解説：
Explanation
Ref:https://next.nutanix.com/installation-configuration-23/product-mixing-restrictions-37231
質問 # 107
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. Bare metal using iDRAC MAC addresses.
- B. Bare metal using block serial numbers.
- C. Bare metal using LAN MAC addresses.
- D. Bare metal using node serial numbers.
正解：A
解説：
In scenarios where a software-only installation is planned on Dell servers without pre-configured IP addresses for out-of-band management interfaces, the iDRAC MAC addresses are crucial. Using iDRAC (Integrated Dell Remote Access Controller), a consultant can perform a bare metal installation remotely and manage the servers effectively. This method is preferable when IP addresses are not initially available, allowing the consultant to utilize the out-of-band management network for setup. References: Nutanix Installation and Configuration guides, especially those pertaining to Dell hardware, available through the Nutanix Bible and official Nutanix training materials.
質問 # 108
A customer wants to use NIC teaming on an ESXi host using a vSphere Standard Switch configured with the Route based on physical NIC load load balancing option. The customer does not see the option when editing the Teaming and Failover settings for the switch.
How should the consultant resolve this issue?
- A. Add a vSphere Distributed Switch
- B. Install a vCenter server to manage the switch
- C. Change the load balancing option on the switch.
- D. Add another physical NIC to the team.
正解：B
解説：
For a customer to use NIC teaming with the "Route based on physical NIC load" load balancing option on an ESXi host using a vSphere Standard Switch, they need vCenter Server. This specific load balancing method is not available on a vSphere Standard Switch without vCenter management, as it requires vSphere Distributed Switch capabilities that are managed via vCenter Server. By installing a vCenter server, the customer can upgrade from vSphere Standard to Distributed Switches and access more advanced features including the desired NIC teaming option.References: VMware vSphere Documentation, Nutanix Bible.
質問 # 109
A consultant attempts to perform an LCM inventory after successfully creating the cluster, but is met with the following error:
LCM Exception [LcmExceptionHandler]: Could not find a module for entity with reference name nutanix.ncc.update What is the most likely reason LCM inventory/update is failing?
- A. Clusters must be licensed before LCM inventory.
- B. Nutanix CVMs are blocking TCP port 54.
- C. IPMI network is unable to reach the internet.
- D. Nameservers are not reachable.
正解：A
解説：
The error encountered during the LCM inventory process, which mentions "Could not find a module for entity with reference name nutanix.ncc.update," typically indicates that the cluster has not yet been licensed. The Life Cycle Management (LCM) functionality in Nutanix systems requires a valid license to perform operations such as inventory checks and updates. Without this license, LCM cannot retrieve or update the necessary software modules, leading to the stated error. Licensing the cluster would resolve this issue and allow the LCM processes to proceed normally.References: Nutanix LCM Documentation, Nutanix Licensing Guidelines.
質問 # 110
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?
- A. Jumbo frames
- B. Portfast
- C. LACP on switch
- D. PAgP
正解：B
質問 # 111
A consultant is running the Foundation VM using desktop virtualization software. No nodes are discovered.
What should the consultant verify first?
- A. Bridged Adapter
- B. Host-only Adapter
- C. NAT
- D. Internal Network
正解：A
解説：
When using the Foundation VM in a desktop virtualization environment and nodes are not being discovered, the first setting that the consultant should verify is the network adapter configuration, specifically ensuring it is set to a Bridged Adapter. This setting allows the virtual machine hosting the Foundation VM to connect directly to the physical network, making other network nodes visible and reachable during the discovery process. This direct network connection is critical for the Foundation tool to function correctly and discover other nodes.References: Nutanix Bible, Nutanix University
質問 # 112
Refer to the exhibit.
The customer has an existing NX-3160 block and is adding a second node into it.
Where should the node be installed?"
- A. 0
- B. 1
- C. 2
- D. 3
正解：B
解説：
Based on the exhibit which shows an NX-3160 block with marked slots, the correct slot for installing a new node in the existing NX-3160 block is slot 2. This configuration is typically aligned with the chassis' design for orderly expansion and maintaining balanced power and cooling distribution among the nodes.References:
Nutanix Bible, Nutanix University NCS-Core 6.8 learning materials
質問 # 113
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:
* Repeat every 6 hours
* Local Retention Policy 1
* Remote Retention Policy 8
* 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, restore the VM from the local snapshot by selecting the correct snapshot.
- D. From the local site, retrieve the correct remote snapshot, then restore the VM locally.
正解：D
質問 # 114
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?
- A. Create multiple TempDB data files and enable autogrowth
- B. Create multiple SQL log files and disable autogrowth
- C. Redistribute existing data by creating additional database files and disable autogrowth
- D. Redistribute existing data by creating additional database file and enable autogrowth
正解：A
解説：
In the scenario where SQL queries are running slower post-migration, creating multiple TempDB data files is a recognized best practice for optimizing SQL Server performance, especially when dealing with high transaction rates or complex queries. This approach helps in distributing the I/O load across multiple files and drives, reducing the contention and wait times associated with TempDB, which is a common bottleneck in SQL Server environments. Enabling autogrowth ensures that these files can dynamically grow as needed, which helps in handling unexpected increases in database activity without manual intervention.References:
Nutanix Best Practices for SQL Server, SQL Server performance tuning guidelines.
質問 # 115
A consultant is onsite and needs to start their Foundation Virtual Machine (FVM) to image Nutanix hardware.
The FVM fails to boot. The consultant decides to use a different Foundation method.
Assuming the nodes will discover, which Foundation type or configuration option should the consultant select?
- A. Foundation VM
- B. Use IPMI IPs
- C. Use IPMI MACs
- D. Foundation Applet
正解：D
質問 # 116
......
NCSコア認証は、Nutanixコアインフラストラクチャソリューションのスキルと知識を強化したいITプロフェッショナル向けに設計されています。この認定は、データセンター環境でNutanixテクノロジーを展開、管理、最適化する機能を検証します。 NCS-Core試験は、Nutanixコアインフラストラクチャソリューションの専門知識と習熟度を実証することにより、ITの専門家に競争上の優位性を提供する業界で認識された認定です。この認定は、クラウドコンピューティング、仮想化、ストレージテクノロジーでキャリアを促進したいITの専門家に最適です。
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