1v0-41.20 Exam Dumps - VMware VCTA-NV 2021 Questions and Answers

To optimize East/West traffic while maintaining an overlay-based Layer 3 communication, the customer can use Tier-1 Gateways in NSX-T Data Center. Tier-1 Gateways facilitate efficient internal routing and traffic management within the data center, optimizing East/West traffic.

References:

NSX-T Data Center Logical Routing

Understanding Tier-0 and Tier-1 Gateways

vSphere High Availability (HA) protects virtual machines against hardware failures by automatically restarting VMs on other available hosts in the cluster in case of a host failure. vSphere HA provides high availability for applications running in virtual machines, independent of the operating system and application.

References:

vSphere High Availability Documentation

Understanding vSphere HA

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.

The firewall rule shown in the exhibit is part of a gateway firewall applied to a Tier-0 gateway (TO-GW-01). The key indicators are the "Category: LOCAL GATEWAY" and the "Applied to: TO-GW-01". The rule is set to "Drop" SSH traffic (port 22) from any source to the destinations listed (App-Servers, DB-Servers, Web-Servers).

References:

VMware NSX-T Data Center Documentation

Understanding Firewall Categories in NSX-T

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.

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.

To ensure that the servers of a 3-tier application can communicate with each other and users can access the application from the external network using a multi-tier deployment, the administrator needs to:

C. Connect the three segments to a Tier-1 Gateway from the NSX UI: This ensures internal routing between the segments.

D. Connect the Tier-1 Gateway to the Tier-0 Gateway from the NSX UI: This enables routing from the internal network to the external network.

References:

NSX-T Data Center Logical Routing

Connecting Segments to Gateways