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| Section | Weight | Objectives |
|---|---|---|
| Monitoring, Automation and Operational Efficiency | 5% | - Monitoring and alerting configuration - Automation workflows and tools - Operational process optimization |
| Analyze and Optimize Storage Performance | 20% | - Evaluate and resolve competing workload requirements - Understand storage internals and I/O patterns - Optimize storage configuration and settings - Troubleshoot storage performance bottlenecks |
| Network Performance and Security | 20% | - Tune overlay networking and traffic flow - Implement and analyze Flow security policies - Network troubleshooting and optimization - Optimize physical and virtual network configurations |
| Advanced Platform Configuration and Troubleshooting | 25% | - Integration with third-party systems - Security configuration and compliance - API and CLI-based operations - Prism Central and Prism Element configuration - Cluster management, expansion and maintenance |
| Virtualization and VM Performance Optimization | 15% | - High availability and migration management - Performance metrics analysis and tuning - AHV administration and workload management - VM resource adjustment and optimization |
| Business Continuity and Disaster Recovery | 15% | - Disaster recovery strategy implementation - BCDR testing and validation - Failover and failback operations - Replication and recovery configuration |
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NEW QUESTION # 18
An administrator is working to create a VM using Nutanix V3 API calls with the following specifications.
VM specifications:
* vCPUs: 2
* Memory: 8Gb
* Disk Size: 50Gb
* Cluster: Cluster 1
* Network: default-net
* Branding must be disabled on the VM
The API call is failing, indicating an issue with the payload:
"": [
"'metadata' is a required property",
"'spec' is a required property"
],
"message": "Request could not be processed.",
"reason": "INVALID_REQUEST"
The body is saved in desktop\API_Create_VM.txt.
Correct any issues in the text file that would prevent it from creating the VM. Also ensure the VM will be created as specified and make sure it is saved for re-use using that filename.
Deploy the VM through the API.
Note: Do not power on the VM.
Answer:
Explanation:
See the Explanation below for detailed answer.
Explanation:
Here is the step-by-step solution to correct the API payload and deploy the VM.
This task is performed using the REST API Explorer within Prism Central.
1. Get Required UUIDs
To create a VM, you first need the unique IDs (UUIDs) for the target cluster and network.
* From the Prism Central dashboard, click the question mark (?) icon in the top-right corner and select REST API Explorer.
* Find Cluster 1 UUID:
* In the API Explorer, search for and select the clusters/list (POST) endpoint.
* In the Body field, paste a simple filter: { "kind": "cluster" }
* Click Send.
* In the "Response" body, find the entry for Cluster 1 and copy its metadata.uuid value.
* Find default-net UUID:
* Search for and select the subnets/list (POST) endpoint.
* In the Body field, paste: { "kind": "subnet" }
* Click Send.
* In the "Response" body, find the entry where spec.name is default-net and copy its metadata.uuid value.
2. Correct the API Payload File
The error message "'metadata' is a required property" and "'spec' is a required property" indicates the JSON in the file is malformed and missing the required root-level objects. The file content also does not match the VM specifications.
* On the desktop, open API_Create_VM.txt in Notepad.
* Delete all existing text in the file (including the POST Call and Body: lines).
* Paste the following corrected and complete JSON payload into the file.
* Replace <UUID_for_Cluster_1> and <UUID_for_default-net> with the actual UUIDs you copied in the previous step.
JSON
{
"spec": {
"name": "API_VM_Task15",
"resources": {
"power_state": "OFF",
"num_sockets": 2,
"num_vcpus_per_socket": 1,
"memory_size_mib": 8192,
"disk_list": [
{
"disk_size_mib": 51200,
"device_properties": {
"device_type": "DISK"
}
}
],
"nic_list": [
{
"subnet_reference": {
"kind": "subnet",
"uuid": "<UUID_for_default-net>"
}
}
],
"guest_customization": {
"is_overridable": true,
"override_branding": true
}
},
"cluster_reference": {
"kind": "cluster",
"uuid": "<UUID_for_Cluster_1>"
}
},
"metadata": {
"kind": "vm"
}
}
* Save and close the API_Create_VM.txt file.
Correction Summary:
* JSON Structure: The original file was malformed. The new payload provides the required spec and metadata objects at the root level.
* vCPUs: Set to 2 sockets (2 vCPUs total).
* Memory: Set to 8192 MiB (8 GB).
* Disk: Set to 51200 MiB (50 GB) and removed the unneeded CDROM.
* Cluster/Network: Placeholders are added for the required UUIDs.
* Branding: guest_customization.override_branding: true is added to disable branding for the VM.
3. Deploy the VM via API
* Return to the REST API Explorer.
* Search for and select the vms (POST) endpoint (the one with the description "Create a new vm").
* Open the corrected API_Create_VM.txt file, copy its entire contents (which now includes your specific UUIDs).
* Paste the complete JSON payload into the Body field of the vms (POST) endpoint.
* Click Send.
The API will return a 202 Accepted response, and the VM will be created (and remain powered off) on Cluster 1.
NEW QUESTION # 19
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
(Infrastructure\Hardware\Clusters\cluster-x\Launch 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 Desktop\Files\Documentation and Desktop\Files\Documentation 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 Desktop\Files\Documentation and Desktop\Files\Documentation 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 # 20
Task 12
The application team is reporting performance degradation for a business-critical application that runs processes all day on Saturdays.
The team is requesting monitoring or processor, memory and storage utilization for the three VMs that make up the database cluster for the application: ORA01, ORA02 and ORA03.
The report should contain tables for the following:
At the cluster level, only for the current cluster:
The maximum percentage of CPU used
At the VM level, including any future VM with the prefix ORA:
The maximum time taken to process I/O Read requests
The Maximum percentage of time a VM waits to use physical CPU, out of the local CPU time allotted to the VM.
The report should run on Sundays at 12:00 AM for the previous 24 hours. The report should be emailed to appdev@cyberdyne.net when competed.
Create a report named Weekends that meets these requirements
Note: You must name the report Weekends to receive any credit. Any other objects needed can be named as you see fit. SMTP is not configured.
Answer:
Explanation:
See the Explanation for step by step solution.
Explanation:
To create a report named Weekends that meets the requirements, 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 click on Create Report.
Enter Weekends as the report name and a description if required. Click Next.
Under the Custom Views section, select Data Table. Click Next.
Under the Entity Type option, select Cluster. Click Next.
Under the Custom Columns option, add the following variable: CPU Usage (%). Click Next.
Under the Aggregation option for CPU Usage (%), select Max. Click Next.
Under the Filter option, select Current Cluster from the drop-down menu. Click Next.
Click on Add to add this custom view to your report. Click Next.
Under the Custom Views section, select Data Table again. Click Next.
Under the Entity Type option, select VM. Click Next.
Under the Custom Columns option, add the following variables: Name, I/O Read Latency (ms), VM Ready Time (%). Click Next.
Under the Aggregation option for I/O Read Latency (ms) and VM Ready Time (%), select Max. Click Next.
Under the Filter option, enter ORA* in the Name field. This will include any future VM with the prefix ORA.
Click Next.
Click on Add to add this custom view to your report. Click Next.
Under the Report Settings option, select Weekly from the Schedule drop-down menu and choose Sunday as the day of week. Enter 12:00 AM as the time of day. Enter appdev@cyberdyne.net as the Email Recipient.
Select CSV as the Report Output Format. Click Next.
Review the report details and click Finish.
NEW QUESTION # 21
The security team has provided some new security requirements for cluster level security on Cluster 2.
Security requirements:
* Update the password for the root user on the Cluster 2 node to match the admin user password.
Note: The 192.168.x.x network is not available. To access a node use the host IP (172.30.0.x) from the CVM.
* Output the cluster-wide configuration of the SCMA policy to desktop\output.txt before changes are made.
* Enable the Advanced Intrusion Detection Environment (AIDE) to run on a weekly basis for the hypervisor and cvms for Cluster 2.
* Enable high-strength password policies for the hypervisor and cluster.
* Ensure CVMs require SSH keys for login instead of passwords. (SSH keys are located in the desktop\Files\SSH folder.) Ensure the cluster meets these requirements. Do not reboot any cluster components.
Note: Please ensure you are modifying the correct components.
Answer:
Explanation:
See the Explanation below for detailed answer.
Explanation:
Here is the step-by-step solution to apply the security requirements to Cluster 2.
1. Access Cluster 2 Prism Element
First, we must access the Prism Element (PE) interface for Cluster 2, as most security settings are cluster- specific.
* From the Prism Central dashboard, navigate to Hardware > Clusters.
* Find Cluster 2 in the list and click its name. This will open the Prism Element login page for that specific cluster in a new tab.
* Log in to Cluster 2's Prism Element using the admin credentials.
2. Requirement: Update Node Root Password
This task syncs the root password for all AHV hypervisor nodes with the cluster's admin user password.
* In the Cluster 2 PE interface, click the gear icon (Settings) in the top right corner.
* Select Cluster Lockdown from the left-hand menu.
* Click the Set Root Password on All Hosts button.
* A dialog box will appear. Enter the current admin password (the one you just used to log in) into both the New Password and Confirm New Password fields.
* Click Save. This will propagate the admin password to the root user on all nodes in Cluster 2.
3. Requirement: Add CVM SSH Key
This task adds the security team's public key to the admin user, which is required before we can disable password-based login.
* On the desktop, navigate to the Files > SSH folder.
* Open the id_rsa.pub file (or equivalent public key file) with Notepad.
* Copy the entire string of text (e.g., ssh-rsa AAAA...).
* In the Cluster 2 PE interface, go to Settings (gear icon) > User Management.
* Select the admin user and click Modify User.
* Paste the copied public key into the Public Keys text box.
* Click Save.
4. Requirement: Apply SCMA Policies (All other requirements)
The remaining requirements are all applied via the command line on a CVM using Nutanix's Security Configuration Management Automation (SCMA).
* Access the CVM:
* Find a CVM IP for Cluster 2 by going to Hardware > CVMs in the PE interface.
* Open an SSH client (like PuTTY) and connect to that CVM's IP address.
* Log in with the username admin and the corresponding password.
* Output Current Policy (Req 2):
* Before making changes, run the following command to see the current policy:
ncli scma status
* Copy the entire output from your SSH terminal.
* Open Notepad on the desktop, paste the copied text, and Save the file to the desktop as output.
txt.
* Apply New Policies (Req 3, 4, 5):
* Run the following commands one by one. The cluster will apply them immediately without a reboot.
* Enable AIDE (Req 3):
ncli scma update aide-status=enabled aide-schedule=weekly
* Enable High-Strength Passwords (Req 4):
ncli scma update password-policy=high
* Require SSH Keys for CVMs (Req 5):
ncli scma update ssh-login=keys-only
Verification
You can verify all changes by running the status command again. The output should now reflect the new, hardened security posture.
ncli scma status
* AIDE Status: should show Enabled
* AIDE Schedule: should show Weekly
* Password Policy: should show High
* SSH Login: should show keys-only
NEW QUESTION # 22
An administrator wants to increase the performance of their Database virtual machine.
Database_VM has a database that is spread across three vDisks in the volume group Database_VM. The volume group is directly attached to the virtual machine. Previous performance analysis has indicated all storage requests are going to the same node. While this test environment has 1 node, the production environment has 3 nodes.
Configure the Volume Group Database_VM so that it's optimized for the user's VM and the production environment. The virtual machine has been powered off and moved to this test cluster for the maintenance work.
Note: Do not power on the VM.
Answer:
Explanation:
See the Explanation below for detailed answer.
Explanation:
Here is the step-by-step solution to configure the Volume Group for optimized performance in the production environment.
This task is performed in Prism Central.
* From the main dashboard, navigate to Compute & Storage > Volume Groups.
* Find the Volume Group named Database_VM in the list.
* Select the checkbox next to Database_VM.
* Click the Actions dropdown menu and select Update.
* In the "Update Volume Group" dialog, scroll to the bottom of the "Basic Configuration" section.
* Find the checkbox labeled Enable Client Side Load Balancing and check it.
Note: This setting allows the iSCSI initiator within the guest VM to connect to all CVMs in the cluster, distributing the storage load from the three vDisks across all three nodes in the production environment instead of focusing all I/O on just one.
Click Save.
NEW QUESTION # 23
......
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