Nutanix NCP-MCI-6.5 Practice Test - Questions Answers, Page 10

A native VLAN is a VLAN that is assigned to untagged traffic on a trunk port of a switch. A trunk port can carry traffic from multiple VLANs, but it needs to have a native VLAN to handle traffic that does not have a VLAN tag.The native VLAN is usually VLAN 1 by default on most switches, but it can be changed to any other VLAN number2. When creating a network profile on Nutanix, the administrator needs to specify the VLAN ID that matches the VLAN configuration on the physical switch. However, if the network profile uses the same VLAN ID as the native VLAN on the switch, it will cause network connectivity issues for the VMs connected to that network profile. This is because Nutanix AHV uses 802.1Q tagging for all network traffic, including traffic in the native VLAN.The switch will expect untagged traffic in the native VLAN and will drop any tagged traffic in that VLAN3. To fix this issue, the administrator needs to change the VLAN field from vlan. 1 to vlan. 0 in the network profile on Nutanix.This will tell Nutanix AHV to send untagged traffic for that network profile and match the native VLAN configuration on the switch4.

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.

According to theNutanix Prism Central Guide, to configure a syslog server in Prism Central, you need to specify the transport protocol (TCP or UDP) and the IP address/port of the syslog server.

According to theNutanix Prism Central Guide, you can click on any chart in a widget to expand it and view more details about the data elements.

According to theNutanix AHV Networking Guide, active-active bond mode provides load balancing and fault tolerance for network traffic by distributing packets across multiple interfaces using a hashing algorithm based on source and destination MAC addresses, IP addresses, and TCP/UDP ports. This mode does not require any special configuration on the network switch and can improve throughput for hosts with many small VMs.

According to theNutanix Prism Central Guide, Prism Central allows you to apply storage policies on a per VM basis using Category, so that the VM uses the storage configuration defined in the storage policy. Using a storage policy, you can manage parameters of VMs, such as encryption, type of or lack of data compression, and IOPS or Throughput throttling values to be applied to the entities.

According to theRed Hat Customer Portal, to use RELP with Rsyslog, you need to install the rsyslog-relp package on both the server and the client. If the remote server does not have rsyslog-relp installed, RELP logging will not work as expected.

Zombie VMs and overprovisioned VMs are two types of inefficient VMs that can waste resources and increase costs in a Nutanix environment. Zombie VMs are VMs that are powered on but have no activity or utilization for a long period of time. Overprovisioned VMs are VMs that have more resources allocated than they actually need or use. Both types of VMs can be identified by adding predefined views to a report in Prism Central.

A predefined view is a template that defines what data is displayed and how that data is represented in a report. Prism Central provides several predefined views for different purposes, such as capacity planning, performance analysis, anomaly detection, and efficiency optimization.To add a predefined view to a report, go to Operations > Reports > New Report and select the desired view from the list1.

The Zombie VMs List view shows the list of zombie VMs in the environment based on the CPU usage, memory usage, disk IOPS, and network throughput metrics.The view also shows the amount of resources wasted by these VMs and the potential savings that can be achieved by deleting or resizing them2.

The Overprovisioned VMs List view shows the list of overprovisioned VMs in the environment based on the CPU usage, memory usage, disk IOPS, and network throughput metrics.The view also shows the amount of resources wasted by these VMs and the potential savings that can be achieved by resizing them3.

By adding these two views to a report, an administrator can identify inefficient VMs and take appropriate actions to optimize resource utilization and reduce costs.

When a VM is connected to a Nutanix managed network, the IP address is assigned when the VM is powered on. A Nutanix managed network is a network that is created and managed by Prism Central using IP address management (IPAM). IPAM allows Prism Central to automatically assign IP addresses to VMs from a pool of available addresses in a subnet.IPAM also tracks the IP address usage and availability across clusters and networks4.

When a VM is connected to a Nutanix managed network, the administrator can choose one of the following assignment types for the IP address:

Assign Static IP: This option allows the administrator to manually specify a static IP address for the VM from the subnet range. The IP address will not change unless the administrator changes it.

Assign with DHCP: This option allows Prism Central to dynamically assign an IP address for the VM from the subnet range using DHCP. The IP address may change depending on the DHCP lease time and availability.

No Private IP: This option allows the administrator to skip assigning an IP address for the VM.This option is useful for scenarios where the administrator wants to use an external IPAM solution or assign an IP address later5.

Regardless of the assignment type, the IP address is assigned when the VM is powered on. This is because Prism Central needs to communicate with the hypervisor (AHV or ESXi) to configure the virtual NIC (vNIC) of the VM with the IP address information.This communication can only happen when the VM is in a powered on state6.