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Nutanix NCM-MCI Exam Practice Questions (P. 5)

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Question #21
An administrator responsible for a VDI environment needs to investigate reports of slow logins. The administrator finds that increasing the number of vCPUs from
2 to 4 will reduce the login times. Production workloads are consuming 75% of the host CPU on the cluster. The administrator increases the vCPU count on all of the VDI VMs.
What are two impacts on the cluster? (Choose two.)
  1. A
    Increase CPU utilization %
  2. B
    Increase CPU ready %
  3. C
    Increase memory utilization %
  4. D
    Increasing CPU counts will decrease memory utilization

Correct Answer:
AB

Question #22
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?
  1. A
    The VM's iSCSI traffic is being routed to the data services IP subnet
  2. B
    The performance test is generating small block random 10
  3. C
    The duster data services IP address is a bottleneck, shared with other iSCSI traffic
  4. D
    Data Locality ensures that VM attached disks are always faster than iSCSI volumes

Correct Answer:
C

Question #23
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?
  1. A
    Increase SSD capacity
  2. B
    Increase the OPLOG
  3. C
    Increase the write cache
  4. D
    Use HDDs with higher RPM

Correct Answer:
A

Question #24
An administrator is deploying a three-tier application on a Nutanix Enterprise Cloud consisting of web, application, and database VMs. Traffic between the servers must be limited to specific services/ports.
There is an application layer firewall VM deployed on one host in the cluster.
In which way should the administrator meet this requirement?
  1. A
    Create a network for each type of VM, and use policy-based routing to control the traffic flow
  2. B
    Configure a security policy and service chain redirecting the server traffic through the firewall
  3. C
    Separate the web application and database VMs on to dedicated VLANs
  4. D
    Categorize the VMs in Prism Central and utilize Flow to set a security policy

Correct Answer:
D

Question #25
An administrator needs to make sure an RF2 cluster can survive a complete rack failure without negatively effecting workload performance. The current cluster configuration consists of the following:
✑ 30 nodes: distributed 10 nodes per rack across three 42U rack
✑ Each nodes is configured with 40TB usable storage all flash (Cluster Total 1.2 PB Usable)
✑ Current cluster utilization is 900TB storage
Which configuration changes should be made to make sure that the cluster meets the requirements?
  1. A
    Expanse the cluster by adding 3 additional nodes per rack, 9 nodes total.
  2. B
    Expanse the cluster by adding 2 additional nodes per rack, 6 nodes total.
  3. C
    Expanse the cluster by adding 9 nodes to a new 42U rack
  4. D
    Expanse the cluster by adding 8 nodes to a new 42U rack

Correct Answer:
A

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