Nutanix NCM-MCI practice test

Question 1

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. Redistribute existing data by creating additional database file and enable autogrowth
• B. Create multiple TempDB data files and enable autogrowth
• C. Create multiple SQL log files and disable autogrowth
• D. Redistribute existing data by creating additional database files and disable autogrowth

Question 2

Over the period of 2 to 3 weeks, a cluster displays the following:

Periods where Warning Alerts of memory usage over 75% are asserted

Periods where Critical Warnings of memory usage over 90% are asserted

Periods of slow of frozen VDI desktops have caused work stoppage or slowdown

VDI clones have periodically not powered up when called, causing work stoppage
Which steps should be used to prioritize the administrators troubleshooting efforts?

• A. Assess resource health on Hardware page Review the Analysis page for memory usage demand Determine the VDI workload-to-host affinity across the cluster
• B. Analyze Alert Pages for a root cause of memory problem Analyze VM table page to access the VM functionality Analyze the VDI Clone properties for possible VDI Workload stress
• C. Check Analysis page for CPU demand Verify VDI workload property for memory subscription Review the Hardware page to determine if the cluster has sufficient RAM
• D. Review Analysis Page for memory use pattern Alert with VDI workload demand Analyze current and future workload in the Capacity Runaway tab for sufficient resources

Question 3

An organization is running a Nutanix Cluster based on AOS 5.10.x and VMware vSphere 6.7.
Currently, the CVM network is segmented and Storage only nodes not present.
A new security project based on NSX is coming. VMware Distributed Virtual Switches are required.
The administrator needs to prepare the environment for the new project.
Which step should the administrator use to initiate the project?

• A. Enable Nutanix Flow at the Prism Central Level
• B. Manually disable CVM network Segmentation
• C. Convert storage only nodes into vSphere nodes
• D. Enable Jumbo Frames to accommodate network frames

Question 4

An administrator is currently using both 10g uplink with LACP and balance-tcp. A single VM should
not be allowed to use more than a single 10G uplink, and both uplinks should be utilized.
Which two command should be used to configure the bond? (choose two)

• A. Ovs-vsctl set port br0-up bond_mode=balance-slb
• B. Ovs-vsctl set port br0-up bond_mode=balance-tcp
• C. Ovs-vsctl set port br0-up bond_mode=active-backup
• D. Ovs-vsctl set port br0-up other_config: bond-rebalance-interval=30000

Question 5

An administrator needs to maximize storage potential in a six-node cluster. The container is
configured with the following:
Post-process compression
Capacity deduplication
What should the administrator configure to increase space savings?

• A. Erasure coding
• B. Inline compression
• C. Reserve capacity
• D. Cache dedupe

Question 6

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?
A. Expanse the cluster by adding 3 additional nodes per rack, 9 nodes total.
B. Expanse the cluster by adding 2 additional nodes per rack, 6 nodes total.
C. Expanse the cluster by adding 9 nodes to a new 42U rack
D. Expanse the cluster by adding 8 nodes to a new 42U rack

Question 7

An administrator has a VM that consumes large amounts of storage and has the following
characteristics:
Create large / sequential writes
Data must be kept for years
Data is normally only accessed at the end of the year to run report
The administrator decides to use Erasure Coding to save space.
Which feature should the administrator utilize to save space for this VM?

• A. Inline Compression
• B. Flash Mode
• C. Cache Dedup
• D. Post-Process Compression

Question 8

A Nutanix cluster is deployed with the following configuration:
Three four-node blocks (A, B, and C)
All Flash Redundancy Factor 2
What is the effect of simultaneous disk failures on two nodes located in block A?
A. VMs are migrated off of the nodes with disk failures.
B. Each node with a failed disk is marked as degraded.
C. VM read and write operations continue normally.
D. VMs on the nodes with failed disks are unable to write data

Question 9

A VM does not have enough resources for the demand, which leads to performance bottlenecks. The
VM is exhibiting one or more of following baseline values, based on the past 30 days:
CPU usage > 90% (moderate), 95% (high)
CPU ready time > 5%, 10%
Memory usage > 90%, 95%
Memory swap rate > 0 Kbps (no moderate value)
Which type of VM is being described?
A. Constrained VM
B. Bully VM
C. Inactive VM
D. Over-provisioned VM

Question 10

An administrator is responsible for the following Nutanix Enterprise Cloud environment:
A central datacenter with a 20-node cluster with 1.5PB of storage
Five remote sites each with a 4-node cluster with 200TB storage
The remote sites are connected to the datacenter via 1GB links with an average latency of 6 ms RTT.
What is the minimum RPO the administrator can achieve for this environment?
A. 0 minutes
B. 15 minutes
C. 1 hour
D. 6 hours

Question 11

A customer has Metro Availability configured in Automatic Resume Mode between Site A and Site B
What happens to VMs if Primary Site A has full network failure?
A. Automatic protection domain promotion in Site B. VMs automatically restart in Site B
B. VMs continue to run on Site A following an automatic disable of protection domains.
C. An administrator must unwitness in Site B and promote protection domains in Site B for VMs to
restart
D. An administrator must promote protection domains in Site B for VMs to restart.
Source:
https://support-portal.nutanix.com/page/documents/details/?targetId=Web-Console-Guide-
Prism-v55:sto-metro-availability-witness-c.html

Question 12

An administrator has an existing Nutanix seven-node cluster running at RF2 that must be changed to
have the following capabilities:
RF3 set for the cluster
Performance tier deduplication
What is the minimum memory needed on the CVMs to allow for these capabilities?
A. 24GB
B. 28GB
C. 32GB
D. 20G?

Question 13

An administrator receives reports about a Nutanix environment. The investigation finds the
following;
VMs are experiencing very high latency
Each node is equipped with a single SSD, utilized at 95%
Each node is equipped with three HDDs, utilized at 40%
Why are the guest VMs experiencing high latency?
A. CVMs are overwhelmed by disk balancing operations.
B. All VM write operations are going to HDD.
C. All VM read operations are coming from HDD.
D. VMs are unable to perform write operations.

Question 14

An administrator learns that some security settings in a cluster have been changed. The environment
is out of compliance with required policies.
Which function should be used to revert any settings that have changed from the defaults and
prevent further violations?
A. Cluster Lockdown with strong password enforcement
B. Advanced Intrusion Detection Environment (AIDE)
C. Security Configuration Management Automation (SCMA)
D. Defense Information Systems Agency STIG enforcement

Question 15

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?

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