VMware 1v0-41.20 Associate VMware Network Virtualization Exam Practice Test

To enable vSphere High Availability (HA), ESXi hosts need access to shared data storage. Shared storage is critical for HA as it allows virtual machines to be restarted on other hosts within the cluster in the event of a host failure. The shared storage ensures that the virtual machine files are accessible to any host in the HA cluster, facilitating seamless failover.

NSX Data Center offers micro-segmentation enforcement at the container level to secure micro-services. This feature allows for granular security policies to be applied to individual containers, ensuring that only authorized traffic can flow between micro-services, thereby enhancing security.

References:

VMware NSX Container Networking

Micro-Segmentation with NSX

NSX Intelligence is the solution designed to help detect lateral threat movement on east-west network traffic across multi-cloud environments. It provides real-time visibility, analytics, and security posture monitoring, making it easier to identify and mitigate threats within the network.

The Management Plane in the NSX-T Data Center Architecture is responsible for creating and deleting network objects. This plane provides an interface for administrators to manage the network, including configuration and orchestration of network services.

References:

NSX-T Data Center Architecture Overview

NSX-T Management Plane

In NSX-T Data Center, the Geneve protocol is used to provide overlay networks on top of physical networks. Geneve (Generic Network Virtualization Encapsulation) is a tunneling protocol that enables the creation of virtual network overlays, allowing for the segmentation and isolation of network traffic in multi-tenant environments. This flexibility simplifies network management and enhances scalability.

B. It is a module deployed in all transport nodes that provides L2 functionality. D. ESXi hosts support both N-VDS and VDS.

N-VDS (NSX Virtual Distributed Switch) and VDS (vSphere Distributed Switch) are both network switch constructs used in NSX-T Data Center. The N-VDS provides Layer 2 (L2) functionality and is deployed on all transport nodes to handle network traffic. ESXi hosts support both N-VDS and VDS, allowing for flexible network configurations.

References:

NSX-T Data Center: N-VDS Overview

VMware vSphere Distributed Switch Documentation

vSphere High Availability (HA) brings a virtual machine back online on another ESXi host when a virtual machine fails on an ESXi host. HA monitors ESXi hosts and virtual machines to detect hardware and guest operating system failures and restarts VMs on other available hosts in the cluster.

References:

vSphere High Availability Documentation

Understanding vSphere HA

In a software-defined data center (SDDC) solution, the following three components are virtualized:

A. Compute: Virtualizing compute resources allows for the creation and management of virtual machines, providing flexibility and efficiency in resource allocation.

C. Storage: Virtualizing storage resources involves abstracting physical storage devices into a single logical storage pool that can be managed and provisioned as needed.

F. Network: Virtualizing network resources with solutions like NSX-T allows for the creation of virtual networks that are decoupled from physical network hardware, enabling greater flexibility and scalability.

References:

VMware SDDC Overview

Understanding SDDC Components

The software-defined data center (SDDC) helps build the following solutions:

D. Hybrid cloud: SDDC provides the ability to integrate on-premises infrastructure with public cloud services, creating a seamless hybrid environment.

E. On-premises: SDDC principles can be applied within a private data center, allowing for automation, flexibility, and improved resource utilization.

F. Public cloud: SDDC technologies are also applicable to public cloud environments, enabling consistent infrastructure and operations across on-premises and cloud deployments.

References:

VMware SDDC Overview

VMware Hybrid Cloud

vCenter Server is required to deploy NSX Edge virtual machines. The NSX Edge provides routing, firewall, VPN, load balancing, and other network services. The deployment and management of NSX Edge virtual machines are handled through the vSphere Web Client, which necessitates the use of vCenter Server.

References:

NSX-T Data Center Installation Guide

VMware vCenter Server Documentation

The NSX-T Distributed Firewall helps customers achieve security for newly migrated containerized applications through micro-segmentation. Micro-segmentation allows for granular security policies to be applied at the individual workload level, providing isolation and protection within the virtual network.

References:

NSX-T Data Center: Distributed Firewall

Micro-Segmentation with NSX

To provide Layer 2 connectivity between vSphere and KVM hypervisors, the customer should use NSX-T Data Center. NSX-T supports heterogeneous environments and provides networking and security services across multiple hypervisors, including vSphere and KVM.

References:

NSX-T Data Center Overview

NSX-T Data Center Documentation

NSX Service Mesh provides a language-independent way to observe, automate, secure, and control microservices. It extends the capabilities of NSX-T Data Center to microservices, offering consistent networking and security across different environments. This allows customers to manage and secure their microservices without being dependent on the programming languages used to build those services.

vSphere vMotion allows an administrator to upgrade hardware while keeping virtual machines online. vMotion enables the live migration of running VMs from one physical server to another with zero downtime, continuous service availability, and complete transaction integrity.

References:

VMware vSphere vMotion Documentation

Understanding vSphere vMotion

To connect two virtual machines to an already existing segment in NSX and verify communication:

D. Use the ping command to check connectivity between VMs: This can be used to test network connectivity between the two VMs.

E. Connect the VMs to the segment from the vSphere Client: This involves editing the VM settings in the vSphere Client to attach the VMs to the desired NSX segment (Web-Segment).

References:

NSX-T Data Center Networking Guide

Connecting VMs to a Segment

The component that provides virtual switching capabilities in NSX-T Data Center is the NVDS (NSX Virtual Distributed Switch). NVDS allows for the creation and management of virtual networks within the NSX-T environment, supporting advanced network functions like distributed switching, routing, and firewalling.

To encrypt file transfers between two sites that do not have the same subnet, the IPSEC VPN feature in NSX-T can be used. IPSEC VPNs provide secure communication over IP networks by encrypting the data transferred between the two sites, ensuring data confidentiality and integrity.

References:

NSX-T Data Center VPN Configuration

VMware NSX-T VPN Services