2V0-41-24 NSX 4.x Professional V2 Practice Questions

NSX provides a native, distributed DHCP server functionality that can be enabled on Tier-0 or Tier-1 Gateways. For providing DHCP to overlay segments connected to a Tier-1, the best practice is to configure the DHCP server directly on that Tier-1 Gateway. This creates a highly available service that is managed centrally through the NSX UI or API and is directly attached to the logical networks it serves.

The Teaming Policy in an Uplink Profile defines the load balancing and failover behavior for the physical NICs (uplinks) used by the transport node. Options include Failover Order, Load Balance Source MAC Address, and Load Balance Source Port, which dictate how NSX utilizes the available physical bandwidth and ensures resilience in case of a link failure.

VRF Lite on a Tier-0 Gateway allows for the creation of multiple virtual routing and forwarding instances within a single gateway. Each VRF has its own isolated routing table, interfaces, and routing protocol adjacencies. This is the ideal solution for multi-tenancy, as it allows each tenant to have a dedicated routing domain (linked to their Tier-1 Gateway) while sharing the same physical Edge cluster and Tier-0 hardware resources.

This is True. The NSX Upgrade Coordinator provides flexibility in planning and executing upgrades. An administrator can group clusters and upgrade them in series or in parallel. Running parallel host upgrades across multiple clusters is a key feature used to accelerate the upgrade process in large environments.

A TEP (Tunnel Endpoint) is a VMkernel port on an ESXi host or an interface on an NSX Edge node that is used for the overlay network. It has an IP address and is responsible for encapsulating workload traffic in Geneve packets and de-encapsulating it at the destination, forming the overlay tunnel between transport nodes.

For bare-metal Edges, using multiple uplink profiles with single active uplinks allows for deterministic traffic engineering and avoids potential LAG-related issues with the physical switches. This configuration enables ECMP and provides predictable failover behavior, which is critical for BGP peering. Each uplink can be pinned to a specific NUMA node for performance, providing a clear and resilient path for routing adjacencies.

Even if the Distributed Firewall (DFW) is disabled or has no blocking rules, the Gateway Firewall, which is enforced on the Service Router (SR) component of the Tier-1 Gateway, can still block traffic. The firewall-out stage in the Traceflow output for traffic destined to the gateway itself is a strong indicator that a firewall instance on the gateway is the point of the drop. This separates the DFW (on the vNIC) from the Gateway Firewall (on the SR).

Using tags for dynamic grouping allows for automated policy application as VMs are provisioned or moved, which is highly scalable and reduces administrative overhead.

Scoping policies using the "Applied To" field ensures that firewall rules are only programmed on the vNICs of relevant VMs, which optimizes hypervisor performance and reduces the security attack surface.

The Auditor role in NSX is specifically designed for this purpose. It provides comprehensive read-only access to all configurations, including networking, security, and system settings. This aligns with the principle of least privilege for users who only need to view and verify settings without any modification rights.

NSX 4.x is designed to operate in mixed-mode environments with both DPU-enabled and non-DPU hosts within the same cluster and transport zone. When DPU offloading is enabled, NSX intelligently manages the datapath. For traffic between an offloaded VM and a non-offloaded VM, NSX seamlessly transitions the packet from the DPU datapath to the hypervisor datapath on the respective hosts without requiring complex routing or separate transport zones. This approach maximizes DPU benefits while maintaining operational simplicity and consistent policy enforcement.