無料Nutanix NCP-MCI-6.5学習ガイド試験問題と解答 [Q79-Q98]

無料Nutanix NCP-MCI-6.5学習ガイド試験問題と解答

NCP-MCI-6.5試験問題集、NCP-MCI-6.5練習テスト問題

Nutanix NCP-MCI-6.5（Nutanix Certified Professional - Multicloud Infrastructure（NCP-MCI）v6.5）試験は、複数のクラウド環境でNutanixクラスタを管理および展開するための個人のスキルと知識を認定するために設計されています。試験では、Nutanixクラスタのアーキテクチャ、展開、および管理、仮想化およびコンテナ化技術、およびパブリックおよびプライベートクラウドプラットフォームとの統合など、さまざまなトピックがカバーされています。 NCP-MCI-6.5試験は、クラウド管理者、システム管理者、および仮想化管理者を含む、マルチクラウド環境でNutanixクラスタを展開および管理する責任を持つIT専門家を対象としています。

質問 # 79
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. Using the Actions drop-down menu in the Health dashboard of Prism Element.
B. Running noc health_checks run_all on the PC VM
C. Using the action action drop-down menu in the Health dashboard of Prism Central
D. Running ncc health_checks run-alll on the CVM

正解：A、D

質問 # 80
Refer to exhibit:
An administrator needs to update some images that were previously uploaded to their Nutanix cluster, while logged into Prism Element when trying to update the images, the update icon is not enabled.

What could be the cause for this behavior?

A. Images were imported into Prism Central.
B. Images are corrupted and must be re-uploaded.
C. The files were ISO but were uploaded as disk images hence cannot be used or edited.
D. RBAC is configured and the administrator's user doesn't have the right privileges.

正解：D

質問 # 81
Which three configuration scenarios are valid for the deployment of Prism Central? (Choose three.)

A. Environments use Network Address Translation.
B. Prism Elements and Prism Central art in different subnets.
C. Environments use the 192.168.5.0/24 CVM management network.
D. Prism Elements and Prism Central have proxy configured.
E. Environments do not have Internet access.

正解：A、C、E

質問 # 82
An administrator is reviewing performance of a core banking system that routinely has 20,000 concurrent users. During, business hours, the CPU on the applications servers runs at close to 100%. The administrator needs to determine if there is a performance issue specific to the app servers, the database servers, or all servers on the cluster.

Which metrics should the administrator review in Prism Analysis Graphs?

A. Cluster CPU and Memory Only
B. Cluster IO, CPU, Memory, Network, App Server CPU
C. Cluster IO, Network, Database and App Server CPU
D. Cluster IO, CPU, Memory and Database and App Server CPU

正解：B

解説：
In this case, the administrator wants to investigate the performance of a core banking system that consists of application servers and database servers. The application servers have high CPU utilization during business hours, which may indicate a bottleneck or a resource contention issue. The administrator needs to review multiple metrics in Prism Analysis Graphs to identify the root cause and determine if there is a problem with the app servers only, or with other components as well.
The metrics that are relevant for this analysis are:
Cluster IO: This metric shows the input/output operations per second (IOPS) and throughput (MBps) of the cluster. It can help to understand if there is a high demand for disk IO from the VMs or if there is any latency or congestion in the storage layer.
Cluster CPU: This metric shows the CPU utilization (%) and load average of the cluster. It can help to understand if there is enough CPU capacity in the cluster to handle the workload or if there is any imbalance or contention among hosts.
Cluster Memory: This metric shows the memory utilization (%) and available memory (GB) of the cluster. It can help to understand if there is enough memory capacity in the cluster to support the VMs or if there is any pressure or swapping in the memory layer.
Network: This metric shows the network throughput (MBps) and packets per second (pps) of the cluster. It can help to understand if there is enough network bandwidth in the cluster to transfer data between hosts and VMs or if there is any congestion or packet loss in the network layer.
App Server CPU: This metric shows the CPU utilization (%) and load average of each application server VM. It can help to understand if there is any variation or anomaly in the performance of each app server or if there is any correlation with other metrics.
Database Server CPU: This metric shows the CPU utilization (%) and load average of each database server VM. It can help to understand if there is any variation or anomaly in the performance of each database server or if there is any correlation with other metrics.

質問 # 83
An administrator would like to leverage the Reliable Event Logging Protocol (RELP) with their Remote Syslog Server. After completing the configuration, it is observed that RELP logging is not working as expected.
What is the likely cause of this issue?

A. The remote server does not have rsyslog-relp installed.
B. The Remote Syslog Server was configure using TCP as the protocol.
C. The cluster does not have RELP installed.
D. The GENESIS was the only one chosen to forward log information.

正解：A

質問 # 84
What is the expected operation during node addition when the new node has a different AOS version?

A. The entire cluster is upgraded to the latest one-click release.
B. The node is automatically re-imaged using the software currently running in the cluster.
C. The node is added and a separate upgrade operation must be performed.
D. The addition fails and forces the administrator to image using standalone Foundation.

正解：D

質問 # 85
Which Nutanix service control ncli, the HTML5 UI, and Rest API?

A. Chronos
B. Zookeeper
C. Cassandra
D. Prism

正解：D

解説：
Prism is the central service control used by Nutanix to manage the clusters. It provides a unified view of the entire system, and it is used to control the HTML5 UI, the nCLI, and the REST API. Prism is used to manage the resources of the system, such as the nodes, storage, and networks, as well as to monitor the performance of the system and the applications running on it.
https://www.nutanixbible.com/2f-book-of-basics-cluster-components.html
Prism
Key Role: UI and API
* Prism is the management gateway for components and administrators to configure and monitor the Nutanix cluster. This includes Ncli, the HTML5 UI, and REST API.
* Prism runs on every node in the cluster and uses an elected leader like all components in the cluster. All requests are forwarded to the leader using Linux Iptables. This allows access to PRISM using any CVM Ip address.
* Prism communicates with Zeus for cluster configuration data and Cassandra for statistics to present to the user. It also communicates with the ESXi hosts for VM status and related information These are only some of the essential services that make up the CVM functionality. For more information on all the services and various Nutanix Cluster components, refer to the portal documentation.

質問 # 86
Refer to the exhibit.

An administrator is trying to implement the solution that is shown in the exhibit, but has been unsuccessful.
Based on the diagram, what is causing the issue?

A. Network latency
B. Unsupported hypervisor
C. Active containers in both sites
D. A remote Witness VM

正解：A

解説：
The correct answer is C. Network latency.
The diagram shows a solution that uses synchronous replication between two remote protection domains, cluster site A and cluster site B. Synchronous replication is a feature that allows near-zero RPO (recovery point objective) by replicating data to the remote site before acknowledging writes to the local site. However, synchronous replication has some requirements and limitations that must be met for it to work properly. One of these requirements is that the network latency between the two sites must be less than or equal to 5 ms1. If the network latency is higher than 5 ms, the synchronous replication will fail and the protection policy will be suspended2.
Therefore, based on the diagram, the most likely cause of the issue is that the network latency between cluster site A and cluster site B is higher than 5 ms, which prevents the synchronous replication from working. To verify this, the administrator can use the "ncli cluster ping" command to measure the network latency between the two sites3. If the network latency is indeed higher than 5 ms, the administrator can either improve the network performance or switch to a different replication mode, such as near-synchronous or asynchronous.

質問 # 87
A two-node ROBO cluster is configured with a witness VM.

What happens when Node A goes down?

A. Node B sends a leadership request to the Witness VM and goes into single-node mode.
B. The cluster is unaffected and no administrator intervention is required.
C. All operations and services on the Node B are shut down and go into a waiting state.
D. The- cluster becomes unavailable and goes into read-only mode.

正解：A

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 # 88
After the initial configuration and upgrade of NCC, the administrator notices these critical alerts:
* IPMI 10.7.133.33 is using default password
* Host 10.7.133.25 is using default password
* CVM 10.7.133.31 is using default password
Which two initial cluster configuration tasks were missed during the deployment process? (Choose two.)

A. Password policy changes
B. BIOS password changes
C. CVM password changes
D. Host password changes

正解：C、D

解説：
The critical alerts listed are indicating that the default passwords are still in use for IPMI, the host, and the Controller Virtual Machine (CVM). This suggests that the passwords for these components were not changed from the default during the initial cluster configuration and deployment process, which is a critical security practice.
A). CVM password changes: The alert for the CVM using the default password indicates that the CVM password has not been changed. It is a standard security measure to change default passwords to prevent unauthorized access.
C). Host password changes: Similarly, the alert for the host using the default password indicates that the default password for the host has not been updated. This applies to the passwords used to access the hypervisor host directly.
Changing default passwords is a critical step in securing the Nutanix environment. This is highlighted in Nutanix's best practices and security guidelines, which recommend changing default passwords as part of the initial configuration to ensure that the environment is not left vulnerable to unauthorized access due to known default credentials. This process is typically part of the initial setup procedures outlined in the Nutanix documentation for cluster deployment and security configuration.
The IPMI alert also points to the need for changing default passwords, but since IPMI (Intelligent Platform Management Interface) is not specifically mentioned in the provided options, it falls under the broader category of host-level password changes, which would be covered by option C.
BIOS password changes (Option B) and Password policy changes (Option D) are also important but were not directly flagged by the alerts mentioned. BIOS password changes are usually a separate task and not indicated by the alerts given, while password policy changes are related to the policies governing password complexity and rotation rather than the initial password setup.

質問 # 89
An administrator manages an AHV cluster that is dedicated to a dev/test environment. The administrator receiving complaints from users that they are unable to create new VMs on the cluster.
After the reviewing the cluster, the administrator finds that the memory resources are almost fully utilized, with many VMs over-provisioned on memory.
What option is the most efficient resolution to enable additional VMs to be created?

A. Disable HA Reservation on the cluster.
B. Enable Memory Overcommit on the over-provisioned VMs.
C. Enable Memory HA on the over-provisioned VMs.
D. Upgrade the nodes with additional memory DlMMs.

正解：B

解説：
Enable Memory Overcommit on the over-provisioned VMs is the most efficient resolution to enable additional VMs to be created. Memory overcommit allows VMs to use more memory than physically available on a host by compressing and swapping memory pages to storage1. This can improve memory utilization and increase VM density on a cluster1. However, memory overcommit is not supported when HA is configured to use reserved hosts, so you may need to disable HA reservation on the cluster before enabling memory overcommit
1.

質問 # 90
A two-node ROBO cluster is configured with a witness VM.

What happens when Node A goes down?

A. Node B sends a leadership request to the Witness VM and goes into single-node mode.
B. The cluster is unaffected and no administrator intervention is required.
C. All operations and services on the Node B are shut down and go into a waiting state.
D. The- cluster becomes unavailable and goes into read-only mode.

正解：A

質問 # 91
An administrator needs to provide access for a user to view real-time performance metric for all VMs on all clusters across the datacenter.
Which method accomplishes this with the least effort and ongoing maintenance?

A. Configure AD authentication and assign the user to the Viewer role in Prism Element.
B. Configure IDP authentication and assign the user to the Cluster Admin role in Prism Central.
C. Configure AD authentication create a custom role, assign the user to the role, and apply the role to all clusters and VMs

正解：C

解説：
The best method to provide access for a user to view real-time performance metrics for all VMs on all clusters across the datacenter is to configure AD authentication create a custom role, assign the user to the role, and apply the role to all clusters and VMs. This method accomplishes this with the least effort and ongoing maintenance because:
* AD authentication allows Nutanix Prism Central to integrate with an existing Active Directory (AD) domain and use AD users and groups for authentication and authorization5. This simplifies user management and avoids creating local users on Prism Central.
* Creating a custom role allows Nutanix Prism Central to define granular permissions for different actions and entities based on specific needs6. This ensures that users only have access to what they need and nothing more.
* Assigning the user to the custom role allows Nutanix Prism Central to grant access rights for that user based on the role definition7. This avoids assigning permissions individually for each user.
* Applying the role to all clusters and VMs allows Nutanix Prism Central to propagate the access rights for that role across all entities in scope8. This ensures that users can view real-time performance metrics for all VMs on all clusters without having to configure each entity separately.
References: 1: Health Dashboard - Prism Element Guide 2: Understanding Native VLANs - Cisco 3: VMs may lose network connectivity if connected to virtual network with ... - Nutanix Support & Insights 4: VLAN Configuration - AHV Networking Guide 5: Active Directory Authentication - Prism Central Guide 6: Create Custom Roles - Prism Central Guide 7: Assign Roles - Prism Central Guide 8: Apply Roles - Prism Central Guide

質問 # 92
Refer to the exhibit.

An administrator is trying to implement the solution that is shown in the exhibit, but has been unsuccessful.
Based on the diagram, what is causing the issue?

A. Network latency
B. Unsupported hypervisor
C. Active containers in both sites
D. A remote Witness VM

正解：A

質問 # 93
An administrator needs to limit the amount of storage space that data stored in single container can consume.
Which action should the administrator take?

A. Set an advertised capacity for the container
B. Store VM snapshots in a different container
C. Thick prevision the container
D. Enable reservation for rebuild capacity

正解：A

解説：
The best way for the administrator to limit the amount of storage space that data stored in a single container can consume is to set an advertised capacity for the container. This will ensure that the data stored in the container doesn't exceed the set limit, and it will also help prevent any potential performance issues due to resource contention. Additionally, the administrator should consider thick provisioning the container, which will pre-allocate the amount of storage space that can be used by the container. This will help ensure that the data stored in the container doesn't exceed the advertised capacity.

質問 # 94
An administrator needs to boot a VM to a bootable CD. The administrator tries to configure the VM to boot to it, select to add disk, and goes to the images available. The image for the bootable CD is unavailable.
What is the Likely issue?

A. The CD-ROM interface is too slow.
B. The administrator selected a disk attached before it can boot to a CD.
C. The VM needs to have a standard disk attached before it can boot to a CD.
D. The bootable CD image is corrupted during creation.

正解：B

質問 # 95
A newly-hired Nutanix administrator was tasked by the CIO to create a single VM on a test network. The network administrator stated that a native VLAN was used on the Cisco TOR switches with the following parameters:
IP address:172,16.1.2
Network Mask: 255.255.255.0
Default gateway: 172.16.1.1
VLAN:1
The same parameters were used to create a network profile on Nutanix, but the when the VM was on ...
What should the Nutanix administrator do to fix this issue?

A. Use DHCP as opposed to static IP
B. Nutanix removed support for native VLAN.
C. Change VLAN field from vlan. 1 to vlan.0.
D. Enable IPv6 on the VM.

正解：C

質問 # 96
AHV IPAM assigns an IP address from the address pool when creating a managed VM NIC.
At which two instances does the address release back to the pool? (Choose two)

A. The IP address is changed to static.
B. The VM is deleted.
C. The VM NIC is deleted.
D. The IP address lease expires

正解：B、C

解説：
https://portal.nutanix.com/page/documents/solutions/details/?targetId=BP-2029_AHV:BP-2029_AHV Administrators can use Acropolis with IPAM to deliver a complete virtualization deployment, including network management, from the unified Prism interface. This capability radically simplifies the traditionally complex network management associated with provisioning VMs and assigning network addresses. To avoid address overlap, be sure to work with your network team to reserve a range of addresses for VMs before enabling the IPAM feature.
The Acropolis master assigns an IP address from the address pool when creating a managed VM NIC; the address releases back to the pool when the VM NIC or VM is deleted.

質問 # 97
A vDisk is read by multiple VMs. The cluster creates immutable copies of the vDisk. What are these vDisk copies called?