1v0-41.20 Associate VMware Network Virtualization Questions and Answers

NSX-T Data Center supports BGP (Border Gateway Protocol) as a dynamic routing protocol. BGP is used for the exchange of routing information between different networks and is essential for enabling dynamic routing in large-scale environments.

In ESXi, the following two network connection types can be enabled:

C. Connecting virtual machines to the physical network and to each other: This allows VMs to communicate with each other and with external networks via virtual switches.

D. Connecting VMkernel services to the physical network: This enables ESXi hosts to manage network traffic for services such as vMotion, iSCSI, NFS, and management.

References:

VMware vSphere Networking Documentation

Networking Best Practices for ESXi

Connecting segments to Tier-1 Gateways in NSX-T Data Center enhances East/West communication. Tier-1 Gateways are designed to manage internal traffic between segments and provide routing within the logical network, optimizing the internal data flow between workloads.

References:

NSX-T Data Center Logical Routing

Tier-0 and Tier-1 Gateways

To secure two virtual machines attached to the same segment, the customer can configure a distributed firewall rule using NSX Data Center. The NSX Distributed Firewall (DFW) allows for micro-segmentation, providing granular security controls and policies that can be applied to individual virtual machines, even if they are on the same network segment.

References:

NSX-T Distributed Firewall

Micro-Segmentation with NSX

To create a multi-tier network infrastructure in NSX-T, the customer needs to connect segments to a Tier-1 gateway and then connect the Tier-1 gateway to the Tier-0 gateway. This setup allows for the separation of internal (Tier-1) and external (Tier-0) routing.

References:

NSX-T Data Center Logical Routing

Understanding Tier-0 and Tier-1 Gateways

VMware HCX (Hybrid Cloud Extension) is designed to simplify application migration, workload rebalancing, and business continuity across data centers and clouds. It provides services such as live migration, disaster recovery, and continuous availability.

References:

VMware HCX Documentation

VMware HCX Overview

With the aid of NSX-T Tier-0 and Tier-1 Gateways, a service provider can achieve multi-tenancy for customers. Multi-tenancy allows multiple tenants (customers) to share the same physical infrastructure while maintaining isolation and segmentation of their respective network traffic through the use of logical (virtual) networks and routing constructs provided by Tier-0 and Tier-1 Gateways.

References:

NSX-T Multi-Tenancy Overview

NSX-T Data Center Logical Routing

To create NSX-T objects from code, an administrator should use the REST API. The NSX-T REST API allows administrators to automate and manage NSX-T resources programmatically. It provides comprehensive capabilities for creating, configuring, and managing network objects, such as segments, gateways, and firewall rules, directly from code.

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

NSX Intelligence provides visibility and dynamic security policy enforcement in an NSX-T Data Center environment. It offers real-time monitoring and analytics, helping administrators to understand network traffic patterns and enforce security policies dynamically based on observed behavior.

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

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.

To enable features such as High Availability (HA), vMotion, and Distributed Resource Scheduler (DRS) in a vSphere environment, a vCenter Server is required. The vCenter Server provides centralized management and enables the orchestration of these advanced features. HA ensures virtual machine availability by restarting them on other hosts in the event of a failure. vMotion allows live migration of virtual machines without downtime, and DRS balances workloads across hosts in a cluster to optimize resource usage.