Free Practice Questions for VMware 3V0-42.23 Exam

Stateful Services in NSX Gateway (Correct Answer - A):

NSX-T Gateways (T0/T1)support the followingstateful services:

NAT (Network Address Translation)

DHCP (Dynamic Host Configuration Protocol)

Load Balancing

Incorrect Options:

(B - Reflexive NAT instead of Stateful NAT):

Reflexive NAT is astatelessservice, whereasstateful NATis required for advanced networking.

(C - DNS Service on Gateway):

NSX Gateways do not provide DNS services; they rely on external DNS servers.

(D - TLS Inspection and DNS on Gateway):

TLS inspection is an IDS/IPS feature, not an NSX-T gateway service.

VMware NSX 4.x Reference:

NSX-T Edge and Gateway Services Guide

VMware NSX-T Advanced Load Balancer Documentation

Scalable Multi-Tier NSX Design (Correct Answer - A):

MultipleTier-1 Gatewaysdistribute traffic efficiently across workloads.

Single Tier-0 Gatewayprovidesconsistent external routing, simplifyingBGP/OSPF configuration.

Supportsmulti-tenancy and micro-segmentationwhile maintainingperformance scalability.

VMware NSX 4.x Reference:

NSX-T Multi-Tier Gateway Design Guide

NSX-T Scalability Best Practices

Distributed Firewall for Multi-Tenant Security (Correct Answer - D):

NSX Distributed Firewall (DFW)enablestenant isolationat thevirtual machinelevel.

It enforcessecurity policies directly on vNICs, ensuringEast-West traffic controlwithout needing hardware firewalls.

This ensuresmulti-tenancy compliance, preventingcross-tenant communicationunless explicitly allowed.

Incorrect Options:

(A - Load Balancing):

NSX Load Balancerimprovesapplication availabilitybutdoes not provide traffic isolation.

(B - VLAN):

VLANs providebasic segmentationbutdo not offer granular controllikeDFW.

(C - NAT):

NAT providesIP address translationbutdoes not ensure tenant security.

VMware NSX 4.x Reference:

NSX-T Data Center Multi-Tenancy Design Guide

NSX-T Distributed Firewall Best Practices

NIC Type Selection for Uplink & Transport Node Profile (Correct Answer - A):

Theperformance and capacity of the physical NICsimpact theoverlay and VLAN transport traffic.

High-performance NICs (25G, 40G, 100G)enhancethroughput and reduce latency.

DPU-based NICs (Data Processing Units)improve performance byoffloading packet processing.

Incorrect Options:

(B - CPU & Memory Considerations):

While CPU/memory impactoverall NSX performance,they do not determine uplink/transport profile design.

(C - Number of VMs Per Host):

VM density affects overlay traffic, butuplink profile design depends on NIC configuration.

(D - Physical Location of ESXi Hosts):

Location is important for high availability, but it does notdirectly define uplink profiles.

VMware NSX 4.x Reference:

NSX-T Uplink Profile & Transport Zone Design Guide

NIC Performance Optimization for NSX-T

1. Understanding NSX Edge VM Deployment

NSX Edge VMs provide services like NAT, firewalling, VPN, and load balancing.

Manually deployed NSX Edge nodes must be configured to join the management plane before they can function properly.

2. Why "Joining the Management Plane" is Correct (B)

NSX Edge must register with NSX Manager, which operates in the management plane.

This allows Edge VMs to receive configurations, participate in Edge Clusters, and provide network services.

Without registration, the Edge VM will not receive the required control plane updates.

3. Why Other Options are Incorrect

(A - Installed on Host 1):

NSX Edge can be installed on any ESXi/KVM host.There isno restriction to a specific host.

(C - Registered to vCenter):

NSX Edge does not require vCenter Server registrationto function in an NSX-T environment.

(D - Connected to a VLAN Segment):

Edges can use either VLAN-backed or overlay-backed transport zones, butVLAN connectivity is not a strict requirement.

4. NSX Edge Deployment Best Practices

Ensure Edge nodes are properly connected to the management plane before configuring services.

Use Edge Clusters for high availability (HA) and load balancing of services.

Verify the correct Uplink Profile is used for external connectivity.

VMware NSX 4.x Reference:

NSX-T Edge Node Deployment Guide

NSX-T Management Plane and Control Plane Integration