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Nutanix Certified Master - Multicloud Infrastructure (NCM-MCI) Sample Questions (Q26-Q31):
NEW QUESTION # 26
Due to new security requirements, an administrator has been tasked with updating the security settings for user accounts within Prism Element on Cluster 1.
An SSL Certificate Signing Request with Subject Alternative Name should be generated for submission to the security team's Certificate Authority with the following details:
countryName = US
stateOrProvinceName = North Carolina
localityName = Durham
organizationName = ACME
organizationalUnitName = Infrastructure
commonName = prism_element.ACME.org
emailAddress = administrator@ACME.org
Alternate names = cvm1.ACME.org, cvm2.ACME.org, cvm3.ACME.org
Encryption: RSA 2048, sha256
When the Certificate Signing Request is generated, place a copy of both the .cnf file and the .csr file on the desktop named 'prism_element_acme.cnf' and 'prism_element_acme.csr' Save a copy of the command(s) used for this scenario to a new file on the desktop named "Task 5.txt".
Note: You must copy and paste the command(s) and output from SSH to the "Task 5.txt" file to achieve all points available.
Answer:
Explanation:
See the Explanation below for detailed answer.
Explanation:
Here is the step-by-step solution to generate the Certificate Signing Request (CSR) on Cluster 1.
This entire process is performed from an SSH session connected to a CVM (Controller VM) on Cluster 1.
1. Access Cluster 1 CVM
* From Prism Central, navigate to Hardware > Clusters and click on Cluster 1 to open its Prism Element (PE) interface.
* In the Cluster 1 PE, navigate to Hardware > CVMs to find the IP address of any CVM in the cluster.
* Use an SSH client (like PuTTY) to connect to the CVM's IP address.
* Log in with the admin user and password.
2. Create the Configuration File (.cnf)
To include the Subject Alternative Names (SANs), you must first create a configuration file.
* In the CVM's command line, create the .cnf file using a text editor:
vi prism_element_acme.cnf
* Press i to enter "Insert" mode.
* Paste the following text exactly into the editor:
Ini, TOML
[ req ]
default_bits = 2048
distinguished_name = req_distinguished_name
req_extensions = v3_req
prompt = no
[ req_distinguished_name ]
C = US
ST = North Carolina
L = Durham
O = ACME
OU = Infrastructure
CN = prism_element.ACME.org
emailAddress = administrator@ACME.org
[ v3_req ]
subjectAltName = @alt_names
[ alt_names ]
DNS.1 = cvm1.ACME.org
DNS.2 = cvm2.ACME.org
DNS.3 = cvm3.ACME.org
* Press Esc to exit "Insert" mode, then type :wq and press Enter to save and quit vi.
3. Generate the CSR and Key
* Run the following openssl command. This command uses the .cnf file to generate the new CSR (.csr) and a corresponding private key (.key), applying the sha256 encryption as requested.
Bash
openssl req -new -nodes -out prism_element_acme.csr -keyout prism_element_acme.key -config prism_element_acme.cnf -sha256
* The command will output the following, confirming the key generation:
* Generating a 2048 bit RSA private key
* ...................+++++
* ..................................+++++
* writing new private key to 'prism_element_acme.key'
* -----
4. Save Files to the Desktop
You will now copy the contents of the generated files from the CVM to your desktop.
* For Task 5.txt (Commands and Output):
* Open a new Notepad file on the desktop.
* Copy and paste all the commands you ran in the SSH session and their full output (as shown in steps 2 and 3) into this file.
* Save the file on the desktop as Task 5.txt.
* For prism_element_acme.cnf:
* In the CVM SSH session, display the file's content:
cat prism_element_acme.cnf
* Copy the entire text output (starting from [ req ]).
* Open a new Notepad file on the desktop.
* Paste the content and save the file as prism_element_acme.cnf.
* For prism_element_acme.csr:
* In the CVM SSH session, display the file's content:
cat prism_element_acme.csr
* Copy the entire text output, including the -----BEGIN CERTIFICATE REQUEST----- and ----- END CERTIFICATE REQUEST----- lines.
* Open a new C:UsersadminDesktopNotepad file on the desktop.
* Paste the content and save the file as prism_element_acme.csr.
NEW QUESTION # 27
An administrator needs to configure a new write-intensive MS-SQL VM on Cluster 1.
VM specifications:
* vCPU: 12
* vRAM: 128GB
* Storage: 100 GB OS, 750 GB Data
Create the VM and any objects needed in the current environment to meet requirements, maximizing performance for the production environment. Include NEWSQL in the name of any new objects.
Production environment:
* 4 nodes
* Each node has two 8-core CPUs
* Each node has 1024 GB RAM
* Storage: 4 × 7.16 TB SSD Disks and 8 × 8 TB HDD disks
Make sure the VM is configured for maximum performance for the production environment.
Note: Network configuration is not required at this time. Do not power on the VM.
Answer:
Explanation:
See the Explanation below for detailed answer.
Explanation:
Here is the step-by-step solution to create the high-performance SQL VM on Cluster 1.
This task requires two phases: first, creating a new all-flash storage container, and second, creating the VM with a specific vNUMA and disk controller configuration for maximum performance.
1. Access Cluster 1 Prism Element
* From the main Prism Central dashboard, navigate to Hardware > Clusters.
* Find Cluster 1 in the list and click its name. This will open the specific Prism Element login page for that cluster.
* Log in to Cluster 1's Prism Element interface.
2. Create the All-Flash Storage Container
To maximize performance for a "write-intensive" workload on a hybrid cluster, the data and log disks must be placed on an all-flash container.
* In the Cluster 1 PE interface, click the gear icon (Settings) in the top-right corner.
* From the left-hand menu, select Storage.
* Click the + Storage Container button.
* Fill in the basic details:
* Name: NEWSQL_Flash_Container
* Click Advanced Settings.
* Scroll down to the Storage Tier section.
* Select the SSD radio button. This pins all data in this container to the SSD tier, ensuring all-flash performance.
* Click Save.
3. Create and Configure the VM
Now, create the VM, applying vNUMA and multi-SCSI controller best practices.
* From the main PE dashboard, navigate to the VM view.
* Click the + Create VM button.
* Enter the compute details. This configuration is critical for vNUMA performance, as it tells the VM's guest OS about the underlying physical NUMA topology (2 CPUs with 8 cores each).
* Name: NEWSQL_VM
* vCPUs: 12
* Number of Sockets: 2
* Cores per vCPU: 6 (This creates a 2-socket, 6-core VM, totaling 12 vCPUs)
* Memory: 128 GB
* Scroll down to the Disks section and add the OS disk:
* Click + Add New Disk.
* Storage Container: Select the default (hybrid) container.
* Size: 100 GB
* Bus: SCSI
* Device Index: 0 (This will be scsi.0)
* Click Add.
* Add the Data disk (on its own controller for parallel processing):
* Click + Add New Disk.
* Storage Container: Select NEWSQL_Flash_Container.
* Size: 750 GB
* Bus: SCSI
* Device Index: 1 (This creates a new controller, scsi.1)
* Click Add.
* Add a Log disk (on its own controller, a best practice for "write-intensive" SQL):
* Click + Add New Disk.
* Storage Container: Select NEWSQL_Flash_Container.
* Size: 100 GB (A common size for a log disk)
* Bus: SCSI
* Device Index: 2 (This creates a third controller, scsi.2)
* Click Add.
* Review the configuration: You should now have three disks attached, each on a separate controller (scsi.
0, scsi.1, scsi.2). This provides the maximum I/O performance.
* Ensure the Power on VM after creation box is unchecked.
* Click Save.
Topic 1, Performance Based Questions Set 1
Environment
You have been provisioned a dedicated environment for your assessment which includes the following:
Initial Steps
* When you first log into Prism Central or Prism Element you may see the EULA screen. Accept the EULA with any name and then disable Pulse.
* To access Prism Element, the pass-through from Prism Central
(InfrastructureHardwareClusterscluster-xLaunch Prism Element) works better than directly using the external IP:9440.
Workstation
* Windows Server 2019
* All software/tools/etc to perform the required tasks
* Nutanix Documentation and whitepapers can be found in DesktopFilesDocumentation and DesktopFilesDocumentation 6.10
* Note that the Workstation is the system you are currently logged into
* Windows Server 2019
* All software/tools/etc to perform the required tasks
* Nutanix Documentation and whitepapers can be found in DesktopFilesDocumentation and DesktopFilesDocumentation 6.10
* Note that the Workstation is the system you are currently logged into Nutanix Cluster
* There are two clusters provided, connected to one Prism Central. The connection information for the relevant cluster will be displayed to the right of the question. Please make sure you are working on the correct cluster for each item. Please ignore any licensing violations.
Important Notes
* If the text is too small and hard to read, or you cannot see all of the GUI, you can increase/decrease the zoom of the browser with CTRL + and CTRL - (the plus and minus keys).
Prism Central Web Console
* admin / ykZUCJMER7V*
* nutanix / UJ2xE!DEXGY
Cluster 1
* CVM external IP: 34.53.118.63
* CVM DR IP: 172.30.0.6
* admin / 9Fw0B!3QH4X)
* nutanix / GNP*FE2504XWZ
* root / KR*6HY0z5E8
Cluster 2
* CVM external IP: 34.82.155.5
* CVM DR IP: 172.30.0.4
* admin / 5*K30fA76X
* nutanix / N*3F%1ME!Z7T9
NEW QUESTION # 28
An administrator is experiencing an unidentified issue which is causing inode exhaustion on CVMs in Cluster
1. The time between receiving alerts and exhaustion is too short; the administrator needs to lower the alert thresholds to allow more time to clean up inodes until the issue has been identified and resolution implemented.
From Prism Element, modify the appropriate alert policy setting critical threshold for Cluster 1 to 60% and warning threshold to 45%. Ensure the check runs every minute and is not resolved without administrator action.
Answer:
Explanation:
See the Explanation below for detailed answer.
Explanation:
Here is the step-by-step solution to modify the alert policy from the Prism Element (PE) interface for Cluster 1.
1. Access Cluster 1 Prism Element
* From the main Prism Central dashboard, navigate to Hardware > Clusters.
* Find Cluster 1 in the list and click its name. This will open the specific Prism Element login page for that cluster.
* Log in to Cluster 1's Prism Element interface.
2. Modify the Alert Policy
* In the Cluster 1 PE interface, click the gear icon (Settings) in the top-right corner.
* From the left-hand menu, select Alert Policies.
* In the search bar, type inode to find the correct policy.
* Select the checkbox for the policy named cvm_inode_usage_high.
* Click the Update button.
* In the "Update Alert Policy" dialog, configure the following settings:
* Warning Threshold (%): Change the value to 45.
* Critical Threshold (%): Change the value to 60.
* Check Interval (Secs): Change the value to 60 (to run the check every minute).
* Auto Resolve: Uncheck this box (to ensure the alert is not resolved without administrator action).
* Click Save.
NEW QUESTION # 29
A company who offers Infrastructure as a Service needs to onboard a new customer. The new customer requires a dedicated cloud plan which tolerates two host failures.
The customer is planning to move current workloads in three waves, with three months between waves starting today:
* Wave One: 100 VMs
* Wave Two: 50 VMs
* Wave Three: 20 VMs
Workload profile is:
* vCPU: 4
* vRAM: 16 GB
* Storage: 200 GB
The service provider company needs to estimate required resources upfront, to accommodate customer requirements, considering also that:
* limit the number of total nodes
* selected system vendor HPE
* selected model DX365-10-G11-NVMe
* full-flash node (including NVMe + SSD)
* 12 months runway
Create and save the scenario as IaaS and export to the desktop, name the file IaaS-requirement.pdf Note: You must export the PDF to the desktop as IaaS-requirement.pdf to receive any credit.
Answer:
Explanation:
See the Explanation below for detailed answer.
Explanation:
Here is the step-by-step solution to create and export the capacity planning scenario. This task is performed within Prism Central.
1. Navigate to the Planning Dashboard
* From the Prism Central main menu (hamburger icon), navigate to Operations > Planning.
2. Create and Define the Scenario
* Click the + Create Scenario button.
* In the dialog box:
* Scenario Name: IaaS
* Scenario Type: Select New Workload
* Click Create. This will open the scenario editor.
3. Configure Cluster and Runway Settings
* In the "IaaS" scenario editor, find the Runway setting (top left) and set it to 12 Months.
* Find the Cluster configuration tile and click Edit.
* Set Number of Host Failures to Tolerate to 2.
* Click Save.
4. Define the Workload Profile
* In the Workloads section, click the + Add Workload button.
* Select Create a new workload profile.
* Fill in the VM specifications:
* Workload Name: Customer-VM (or similar)
* vCPU per VM: 4
* Memory per VM: 16 GB
* Storage per VM: 200 GB
* Click Add.
5. Set the Workload Growth Plan (Waves)
* You will be returned to the main scenario editor. In the timeline section ("Workload Plan"), add the VMs:
* Wave One (Today):
* Click + Add under the "Today" column.
* Select the Customer-VM profile.
* Enter 100 VMs.
* Click Add.
* Wave Two (3 Months):
* Click the + icon on the timeline itself.
* Set the date to 3 Months from today.
* Click + Add under this new "3 Months" column.
* Select the Customer-VM profile.
* Enter 50 VMs.
* Click Add.
* Wave Three (6 Months):
* Click the + icon on the timeline.
* Set the date to 6 Months from today.
* Click + Add under this new "6 Months" column.
* Select the Customer-VM profile.
* Enter 20 VMs.
* Click Add.
6. Select the Hardware
* In the Hardware configuration tile, click Change Hardware.
* In the "Select Hardware" pane:
* Vendor: Select HPE.
* Model: Search for and select DX365-10-G11-NVMe.
* Note: This model is full-flash by definition, satisfying the requirement.
* Click Done. The planner will recalculate the required nodes.
7. Save and Export the Scenario
* Click the Save icon (floppy disk) in the top-right corner to save the IaaS scenario.
* Click the Export icon (arrow pointing down) in the top-right corner.
* Select PDF from the dropdown menu.
* A "Save As" dialog will appear.
* Navigate to the Desktop.
* Set the file name to IaaS-requirement.pdf.
* Click Save.
NEW QUESTION # 30
Task 11
Running NCC on a cluster prior to an upgrade results in the following output FAIL: CVM System Partition /home usage at 93% (greater than threshold, 90%) Identify the CVM with the issue, remove the fil causing the storage bloat, and check the health again by running the individual disk usage health check only on the problematic CVM do not run NCC health check Note: Make sure only the individual health check is executed from the affected node
Answer:
Explanation:
See the Explanation for step by step solution.
Explanation:
To identify the CVM with the issue, remove the file causing the storage bloat, and check the health again, you can follow these steps:
Log in to Prism Central and click on Entities on the left menu.
Select Virtual Machines from the drop-down menu and find the NCC health check output file from the list.
You can use the date and time information to locate the file. The file name should be something like ncc- output-YYYY-MM-DD-HH-MM-SS.log.
Open the file and look for the line that says FAIL: CVM System Partition /home usage at 93% (greater than threshold, 90%). Note down the IP address of the CVM that has this issue. It should be something like X.X.X.
X.
Log in to the CVM using SSH or console with the username and password provided.
Run the command du -sh /home/* to see the disk usage of each file and directory under /home. Identify the file that is taking up most of the space. It could be a log file, a backup file, or a temporary file. Make sure it is not a system file or a configuration file that is needed by the CVM.
Run the command rm -f /home/<filename> to remove the file causing the storage bloat. Replace <filename> with the actual name of the file.
Run the command ncc health_checks hardware_checks disk_checks disk_usage_check --cvm_list=X.X.X.
X to check the health again by running the individual disk usage health check only on the problematic CVM.
Replace X.X.X.X with the IP address of the CVM that you noted down earlier.
Verify that the output shows PASS: CVM System Partition /home usage at XX% (less than threshold, 90%).
This means that the issue has been resolved.
#access to CVM IP by Putty
allssh df -h #look for the path /dev/sdb3 and select the IP of the CVM
ssh CVM_IP
ls
cd software_downloads
ls
cd nos
ls -l -h
rm files_name
df -h
ncc health_checks hardware_checks disk_checks disk_usage_check
NEW QUESTION # 31
......
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