更新されたのは2024年12月08日認定試験NCP-MCI-6.5問題集で練習テスト問題
更新された検証済みのNCP-MCI-6.5問題集と解答で合格保証もしくは全額返金
質問 # 38
Which two access protocols are supported by Files? (Choose two.)
- A. NFS
- B. ISCSI
- C. SMB
- D. FCOE
正解：A、C
解説：
According to the Network File System web search result3, NFS (Network File System) is a distributed file system protocol that allows a user on a client computer to access files over a network in a manner similar to how local storage is accessed. NFS is one of the access protocols supported by Files. According to the
[MS-WPO]: File Access Services Protocols web search result4, SMB (Server Message Block) is a Windows file sharing protocol that enables applications to discover, access, and share files that are hosted on or made available by a file server, using a network between them, in a secure and managed environment. SMB is another access protocol supported by Files. Therefore, SMB and NFS are two access protocols supported by Files.
質問 # 39
Refer to Exhibit:
An administrator is trying to create a custom alert policy for all VMs.
Why is the Alert warning if field greyed cut?
- A. The Alert critical if threshold is set.
- B. The Behavioral Anomaly threshold is set.
- C. The Enable Policy option checked.
- D. The Auto resolve alerts option is checked.
正解：B
解説：
when you create a custom alert policy, you can choose between two types of thresholds: Static Threshold and Behavioral Anomaly. Static Threshold allows you to set a fixed value for the metric that triggers the alert.
Behavioral Anomaly allows you to use machine learning to detect abnormal behavior based on historical data.
If you select Behavioral Anomaly as the threshold type, you cannot set a warning level for the alert. You can only set a critical level that indicates how much deviation from normal behavior is considered an anomaly3.
Therefore, the Alert warning if field is greyed out when you select Behavioral Anomaly.
質問 # 40
After configuring Active Directory as the desired authentication service, an administrator is not able to login into Prism Central using privileged account.
Which configuration must be checked first?
- A. Local user account
- B. Account lock status
- C. Cluster Lockdown
- D. Role Mapping
正解：D
解説：
According to the Nutanix Community1, users can authenticate using their Active Directory credentials when Active Directory support is enabled for Prism Central. To enable Active Directory support, you need to configure Role Mapping12, which defines how Active Directory groups map to Prism Central roles.
https://next.nutanix.com/ncm-intelligent-operations-formerly-prism-pro-ultimate-26/configuring-authentication-38051
質問 # 41
An administrator was reviewing various AOS logs when a it was noticed that the time of the logs were off by several hours.
Which initial step was missed during the post process cluster configuration?
- A. Setting the cluster time zone via PC GUI
- B. Setting the cluster time zone via CVM NCLI
- C. Setting the cluster time zone via CVM ACLI
- D. Setting the cluster time zone via PE GUI
正解：B
解説：
The cluster time zone is a setting that determines the time zone used by all CVMs in the cluster. The cluster time zone affects the timestamps of Nutanix logs, events, alerts, and reports. The cluster time zone also affects the scheduling of tasks such as snapshots, replication, and upgrades. By default, the cluster time zone is set to UTC (Coordinated Universal Time) when the cluster is created3.
To change the cluster time zone, the administrator needs to use the ncli (Nutanix command-line interface) on any CVM in the cluster. The steps are as follows4:
Log in to any CVM using SSH.
Run ncli cluster get-timezone to check the current cluster time zone.
Run ncli cluster set-timezone timezone=<timezone> to change the cluster time zone, where <timezone> is a valid time zone identifier (for example, America/New_York).
Run ncli cluster get-timezone again to verify that the cluster time zone has been changed.
Note that changing the cluster time zone does not affect the time zone of Prism Element or Prism Central VMs. To change their time zone, the administrator needs to use Prism Element UI or Prism Central UI respectively5.
質問 # 42
Which scenario would benefit most from Erasure Coding being enabled on a container?
- A. Long term storage of data which is written once and read infrequently
- B. WEB and API Servers
- C. VDI use cases where a single VM is cloned 100's of times
- D. High performance database where all is relatively hot.
正解：A
質問 # 43
An administrator receives complaints of poor performance in a particular VM.
Based on the VM performance metric, what is the most likely cause of this behavior?
- A. The host's CPU is severely overloaded.
- B. SSD tier is not big enough to serve workloads' IOPS demand.
- C. Oplog is full cannot serve IO request from this VM.
- D. The VM needs more vCPUs
正解：D
質問 # 44
What is a requirement to enable Flow Neworking?
- A. Flow Micro segmentation must be enabled.
- B. Microservices infrastructure must be enabled.
- C. A dedicated virtual switch has been created for Flow Networking.
- D. Prims Central is using a three-node scale-out deployment
正解：B
解説：
Flow Networking is a feature that enables software-defined networking for AHV clusters. It allows users to create and manage virtual private clouds (VPCs), subnets, and network services such as NAT, DHCP, routing, and VPN. Flow Networking also supports service insertion and chaining, which enables integration with third-party network functions such as firewalls and load balancers. Flow Networking is built on top of the microservices infrastructure (MSP) in Prism Central, which provides the platform for running various Nutanix services such as Calm, Karbon, and Objects. Therefore, to enable Flow Networking, the MSP must be enabled first on Prism Central1. The MSP can be enabled from the Prism Central settings page or from the command line interface (CLI) of the Prism Central VM2. Enabling the MSP will also enable Flow Microsegmentation, which is another feature that provides network security and visibility for AHV clusters.
質問 # 45
A Nutanix cluster is equipped with four nodes. Four VMs on this cluster have been configured with a VM-VM anti-affinity policy and are each being hosted by a different node.
What occurs to the cluster and these VMs during an AHV upgrade?
- A. One node hosts two VMs while the node being upgraded is in maintenance mode.
- B. One VM out of the four powers down when the node hosting it reboots.
- C. The AHV pre-upgrade checks fail until the administrator disables the anti-affinity policy.
- D. The AHV pre-upgrade checks fail until the four VMs are powered off.
正解：C
質問 # 46
Which scenario would benefit most from Erasure Coding being enabled on a container?
- A. Long term storage of data which is written once and read infrequently
- B. WEB and API Servers
- C. VDI use cases where a single VM is cloned 100's of times
- D. High performance database where all is relatively hot.
正解：A
解説：
The correct answer is A. Long term storage of data which is written once and read infrequently.
Erasure Coding is a feature that increases the usable capacity on a Nutanix cluster by reducing the amount of data replication. Instead of replicating data, Erasure Coding uses parity information to rebuild data in the event of a disk failure. The capacity savings of Erasure Coding is in addition to deduplication and compression savings1.
Erasure Coding is most beneficial for scenarios where the data is written once and read infrequently, such as long term storage of archival data, backup data, or cold data. This is because Erasure Coding has some trade-offs and limitations that may affect the performance and availability of the cluster. Some of these trade-offs and limitations are2:
Erasure Coding requires more CPU and memory resources than replication, as it involves more complex calculations for encoding and decoding data.
Erasure Coding increases the network bandwidth consumption, as it involves more data transfers between nodes for encoding and decoding data.
Erasure Coding reduces the resiliency of the cluster, as it can tolerate fewer node failures than replication. For example, a cluster with redundancy factor 2 can tolerate one node failure with replication, but only two disk failures with Erasure Coding.
Erasure Coding is not effective for workloads that have many overwrites or random writes, as it involves more overhead for updating the parity information.
Erasure Coding is not supported for some features, such as volume groups, file server VMs, or Metro Availability.
Therefore, if an administrator needs to configure a container on a Nutanix cluster, they should enable Erasure Coding only if the container will store data that is written once and read infrequently. This way, they can maximize the capacity savings of Erasure Coding without compromising the performance and availability of the cluster.
質問 # 47
What are two minimum prerequisites for live migration to succeed? (Choose two.)
- A. All AHV hosts have IP addresses in the same subnet
- B. All VMs are configured for the same VLAN
- C. All VMs have an IP address in the same subnet
- D. All AHV hosts must be configured on the same VLAN
正解：A、B
解説：
According to section 5 of the exam blueprint guide1, one of the topics covered is live migration. Live migration is the process of moving a running VM from one host to another without any downtime or interruption of service. To perform live migration, there are some prerequisites that must be met, such as:
* All AHV hosts have IP addresses in the same subnet
* All VMs are configured for the same VLAN
* The source and destination hosts have enough resources to accommodate the VM
* The VM does not have any PCI devices attached
質問 # 48
The Update Source for LCM has been configured as shown in the exhibit. Inventory is failing consistently.
What is the likely cause of this issue?
- A. The license assigned to the cluster has expired.
- B. Port 80 is blocked by a firewall.
- C. The administrator does not have a valid portal account.
- D. Port 433 Is blocked by a firewall.
正解：D
質問 # 49
An administrator is commissioning a Nutanix Enterprise Cloud. Once the user VMs have been deployed and are running, the administrator finds that VMs on the same host are able to communicate, but are unable to communicate between hosts.
What must be changed to enable full inter-VM communications?
- A. Change the spanning-tree port type on the switch.
- B. Change the network the VMs are connected to
- C. The VMs need to have static IP addresses.
- D. Update the switch to specifically allow VLAN 15
正解：D
解説：
According to the web search results, one possible cause of inter-VM communication failure between hosts is that the switch is not configured to allow VLAN 15 traffic. VLAN 15 is the default VLAN ID used by AHV for internal communication between CVMs and hosts. If the switch blocks or drops VLAN 15 packets, it will prevent inter-VM communication across hosts4. To enable full inter-VM communication, the administrator should update the switch to specifically allow VLAN 15 traffic on the ports connected to the AHV hosts.
質問 # 50
A two-node ROBO cluster is configured with a witness VM.
What happens when Node A goes down?
- A. The cluster is unaffected and no administrator intervention is required.
- B. Node B sends a leadership request to the Witness VM and goes into single-node mode.
- C. The- cluster becomes unavailable and goes into read-only mode.
- D. All operations and services on the Node B are shut down and go into a waiting state.
正解：B
解説：
According to the Nutanix Support & Insights, in a two-node ROBO cluster with a witness VM, if one node goes down, the other node sends a leadership request to the witness VM and goes into single-node mode. The cluster remains available and can tolerate another failure of either the witness VM or the network link.
質問 # 51
The customer is seeing high memory utilization on a mission critical VM. Users report that the application is unavailable. The guest OS does not support hot add components.
How should the administrator fix this issue?
- A. Access the CVM on the host that is running the VM:
*Open acli
*Run a command to increase the amount of RAM assigned to the VM - B. During the next maintenance window:
*Select the VM from the VMs list
*Perform a graceful shutdown - C. From the Prism web console:
*Go to the VM dashboard
*Select the VM from the VMs list
*Choose Update
*Adjust the amount of memory assigned to the VM - D. Go to Control Panel in the VM:
*Select the Computer Properties
*Increase the amount of RAM assigned
正解：B
質問 # 52
An administrator manages a cluster and notices several failed components shown in the exhibit.
What two options does the administrator have to run all NCC checks manually? (Choose two.)
- A. Running noc health_checks run_all on the PC VM
- B. Using the action action drop-down menu in the Health dashboard of Prism Central
- C. Running ncc health_checks run-alll on the CVM
- D. Using the Actions drop-down menu in the Health dashboard of Prism Element.
正解：C、D
解説：
Prism Element and NCC are two ways to run all NCC checks manually on a Nutanix cluster. Prism Element is the web console that provides management and monitoring capabilities for a single Nutanix cluster. Prism Element has a Health dashboard that shows the status of various components and services in the cluster, such as disks, nodes, CVMs, NCC, and alerts. The Health dashboard also allows the administrator to run NCC checks manually by using the Actions drop-down menu on the right side of the screen. The administrator can choose to run all NCC checks or specific checks based on the category or severity. The NCC checks will run in the background and generate a report that can be viewed or downloaded from the Summary tab. This method is easier and faster than running NCC from the command line on the CVM.
NCC stands for Nutanix Cluster Check, which is a framework of scripts that performs system checks and validations on Nutanix clusters. NCC can detect issues related to hardware, software, configuration, hypervisor, networking, and more. NCC can be run from the command line interface (CLI) of any CVM in the cluster by using the ncc command. To run all NCC checks manually, the administrator can use the command ncc health_checks run_all, which will execute all available checks and display the results on the screen. This method is more comprehensive and detailed than running NCC from Prism Element.
質問 # 53
Refer to Exhibit.
An administrator increases the cluster RF to 3. The containers are not modified.
What will the new values in the data resiliency dashboard be for FAILURES TOLERABLE for the Zookeeper and Extent Groups components?
- A. Zookeeper = 2 and Extent Groups = 2
- B. Zookeeper = 2 and Extent Groups = 1
- C. Zookeeper = 1 and Extent Groups = 1
- D. Zookeeper = 1 and Extent Groups = 2
正解：B
解説：
According to the web search results, the cluster redundancy factor (RF) determines how many copies of the cluster metadata and configuration data are stored on different nodes. By default, the cluster RF is 2, which means that there are three copies of the Zookeeper and Cassandra data on the cluster. If the cluster RF is increased to 3, then there will be five copies of the Zookeeper and Cassandra data on the cluster12. This means that the Zookeeper component can tolerate two failures, as it can still operate with a quorum of three nodes out of five3.
However, the container replication factor (RF) determines how many copies of the VM data and oplog are stored on different nodes. The container RF can be set independently for each container, and it can be different from the cluster RF. For example, a container can have RF 2 even if the cluster has RF 34. In this case, the container will only have two copies of the VM data and oplog on the cluster, regardless of the cluster RF. This means that the Extent Groups component can only tolerate one failure, as it needs at least one copy of the VM data and oplog to be available5.
Therefore, if the administrator increases the cluster RF to 3, but does not modify the containers, then the new values in the data resiliency dashboard will be Zookeeper = 2 and Extent Groups = 1.
質問 # 54
An administrator wants to have a VM on an AHV cluster with access to multiple VLANs. What is the most efficient way to achieve this?
- A. Create a network in AHV associated with all those VLANs on all hosts.
- B. Update a vNIC on the VM to operate in trunked mode for all desired VLANs.
- C. Use SFPs that allow the needed VLANs.
- D. Use one vNIC per VLAN for the VM.
正解：B
質問 # 55
Which two types of granular RBAC does Nutanix provide for AHV hosts? (Choose two.)
- A. Project based
- B. Cluster based
- C. Disk based
- D. Category based
正解：A、D
質問 # 56
How many SSL certificates are used by Prism Element on a Nutanix cluster?
- A. 0
- B. 1
- C. 2
- D. 3
正解：D
質問 # 57
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