Pass the Versa Networks Administrator SD-WAN Specialist VNX301 Questions and answers with CertsForce

The correct answers are C and D . Versa templates are designed to reuse common configuration while still allowing per-device customization. Template variables allow the same template to be deployed to multiple appliances while using device-specific values such as addresses, VLAN IDs, DHCP information, or other bind-data values. Versa documentation for deploying templates describes assigning values to variables contained in a main template that are specific to the device. This makes option C correct.

Option D is also correct because Versa workflows are used to create templates for VOS device configuration. Versa documentation states that workflows are used to create templates to configure VOS devices, and also to create templates for application steering, spoke groups, and service chains.

Option A is not correct in the normal Versa Director onboarding model because a group of devices is associated with one staging template and one post-staging template, rather than multiple device templates being stacked per appliance. Option B is also incorrect because service templates are optional reusable service-specific fragments. Versa documentation states that service templates can be used by multiple device templates and device groups, but it does not require every appliance to have one.

The correct answers are A and D . A Versa stateful firewall primarily enforces security by tracking connection state and matching packet/session information such as source, destination, zones, services, protocol, and L3/L4 attributes. Versa’s CLI configuration guide shows stateful firewall access-policy match options for source and destination addresses, services, IP version, IP flags, DSCP, TTL, and also optional application and URL-category match fields when enhanced services are available.

A Versa NGFW extends this inspection model by adding deeper Layer 7 and UTM capabilities, such as IDS/IPS, antivirus, URL filtering, file or data filtering, and application-aware enforcement. Versa’s SD-WAN design guide specifically describes internet security using the Versa next-generation firewall with unified threat management features, including IDS/IPS and antivirus inspection for DIA traffic. Licensing is also a valid distinction: Versa’s SD-WAN licensing overview describes NGFW features as part of solution tiers, so the availability of advanced security functions depends on the licensed tier or subscription

The correct answers are A, B, and D . For large-scale Versa Secure SD-WAN onboarding, common configuration is reusable through templates and grouping. A device template , also known as a post-staging template, provides the common base configuration that is applied to multiple VOS branch appliances. Versa documentation repeatedly shows configuration tasks being performed under Templates > Device Templates , where an organization is selected and the post-staging template is opened in Appliance view for common configuration.

A device group is also shared by multiple appliances because it groups devices that should receive the same template associations and common service behavior. This is the proper way to profile many branches with similar deployment requirements. Service templates are also shared objects. They are used to apply service-specific configurations, such as SD-WAN traffic steering, application steering, QoS, security, or other common services, across devices. Versa SD-WAN design documentation explains that application-steering templates automate business-intent policies and simplify management by combining application classification, forwarding-class mapping, and SD-WAN policy logic in a reusable template.

A workflow device is device-specific, and device bind data contains site-specific values such as interface addressing, gateways, VLANs, and other per-branch parameters. Therefore, those are not the shared configuration objects.

The correct answer is C . Versa’s bandwidth and throughput troubleshooting documentation specifically instructs administrators to check link speed and half-duplex conditions with the command show interfaces detail interface-name. The example output shows an interface operating at half-duplex / 100 Mbps , and the documentation states that the interface should not be in half-duplex mode and that 100 Mbps was incorrect in that scenario.

A duplex mismatch or incorrect negotiated speed can severely reduce effective throughput, cause collisions or retransmissions, and make SD-WAN overlay performance appear poor even when the overlay itself is functioning. Versa recommends fixing half-duplex and link-speed issues by correcting the configuration on the device to which the VOS device is connected and checking the ISP-side transmission mode, such as auto/auto.

SLA probing, Controller route advertisement, and VXLAN encapsulation may affect SD-WAN path selection or tunnel formation, but the evidence in the question directly points to a physical or underlay Ethernet negotiation problem.

The correct answer is B . In Versa SD-WAN onboarding, the branch progresses through three staging phases. In Stage 1 , the branch uses its factory-default configuration to start an IKE session with the staging server. After the IKE session comes up, the staging server assigns an IP address to the branch and notifies the branch of the Versa Director IP address. Versa Director is also notified that the branch has come up.

In Stage 2 , Versa Director pushes the stage-two configuration to the branch through the staging server. This stage changes the IPsec profile so that the Controller IP address becomes the remote IP. The branch reboots and then attempts to establish the IKE session with the Controller. If the device successfully completed Stage 1 but never forms the Controller IKE session, the failure point is Stage 2.

Stage 3 is later, when the device receives stage-three configuration, becomes operational, and creates Controller IPsec plus branch-to-branch VXLAN/ESP sessions. Therefore, the described issue is a Stage 2 staging failure.

The correct answers are B and C . During a migration from a legacy WAN, such as MPLS Layer 3 VPN, to Versa Secure SD-WAN, an SD-WAN gateway is used to allow communication between SD-WAN-enabled branches and legacy WAN sites. Versa SD-WAN design guidance states that an SD-WAN gateway allows sites connected to the SD-WAN VPN network to communicate with sites connected to a legacy MPLS VPN network. It also explains that this gateway facilitates route exchange between the MPLS underlay network and the SD-WAN VPN network, typically using a dynamic routing protocol such as BGP.

For this design, the hub or gateway must be configured with the Gateway option for the underlay transport so it can act as the interconnect point between the legacy and SD-WAN domains. Versa documentation further describes configuring a BGP peering session on the MPLS transport VR of the gateway to exchange routes from the MPLS provider to the SD-WAN network, and notes that Director Workflows can automate this configuration. Spoke-to-Spoke-Direct is not sufficient for legacy interconnect, and SD-WAN traffic steering policies do not advertise routes.

The correct answer is A . In Versa SD-WAN forwarding profiles, next-hop priorities define which circuits are preferred. When the Load Balance next-hop selection method is used and two circuits share the same priority, sessions can be distributed across those equal-priority paths as long as they are usable and SLA-compliant. A lower priority number represents a more preferred group than a higher priority number. Therefore, two circuits with priority 1 are preferred over LTE with priority 2 .

In this scenario, both internet circuits are healthy and both have priority 1. The VOS device should load-balance sessions across those two circuits. LTE remains available as a lower-priority backup path and would normally be considered only when the preferred internet circuits are unavailable, fail path checks, or no longer meet the applicable policy conditions.

Traffic is not replicated because replication is a separate feature and not implied by Load Balance. The branch does not drop traffic while valid paths exist. LTE is not preferred merely because its priority number is higher; in path selection, priority 1 is preferred over priority 2.

The correct answer is A . Versa CGNAT troubleshooting documentation shows the command show cgnat acl info < tenant-id > for viewing CGNAT access lists used for traffic matching. The example output includes columns such as ACL handle , RuleId , Category , Precedence , VRF , Source IP , and Destination IP . It also shows tenant ID and total filters.

This command is useful when a CGNAT rule exists in configuration but sessions are not being translated. By checking the ACL output, the administrator can confirm whether the correct source prefix, destination prefix, VRF, and rule precedence are actually programmed in the dataplane. If the wrong VRF or subnet is shown, the rule may never match the intended traffic.

System uptime and CPU usage are operational health indicators. SLA metrics are SD-WAN path-quality values. BGP AS path and local preference are routing attributes. None of these directly show CGNAT access-list match programming.

The correct answer is A . Versa documentation for internet speed tests states that before running an internet speed test, administrators must verify WAN internet connectivity and verify that CGNAT is configured on the provider organization. It also states that administrators should verify that they can retrieve the list of predeployed internet speed-test servers. If an error occurs while fetching the server list, the documentation instructs administrators to check the CGNAT and DNS configurations and then click Fetch Server List again.

This aligns with the scenario because DNS resolution and internet breakout depend on correct DNS reachability, NAT translation, and routing through the internet-facing transport. Even if DNS appears partially functional, CGNAT misconfiguration can still prevent application or HTTP test traffic from completing properly.

OSPF, BGP MED, SNMP, syslog, VRRP, and DHCP may be important in other designs, but they are not the first items Versa identifies for a failed internet speed-test server-list fetch in a DIA context.

The correct answers are B and D . In the exhibit, the Next-Hop Selection Method is configured as Load Balance , and both INET and INET-2 have the same next-hop priority value of 1 . Versa SD-WAN guidance states that load balancing between WAN paths is achieved by configuring at least two circuits with equal priority. Therefore, when both INET and INET-2 satisfy the SLA requirements, sessions can be load-balanced across those two internet circuits.

Option D is also correct because the exhibit shows SLA Violation Action: Forward . This means that if no next hop is SLA-compliant, the VOS device is still allowed to forward traffic instead of dropping it. This behavior is consistent with Versa SD-WAN traffic-steering concepts, where forwarding profiles define circuit or path priorities, connection methods, load-balancing behavior, and SLA handling for traffic that matches an SD-WAN policy.

Option A is incorrect because the exhibit does not use the Automatic next-hop selection method. Versa’s performance-based SaaS optimization uses monitoring metrics to select the best path when configured for automatic/performance-based selection, but this exhibit shows Load Balance instead. Option C is not the best answer because LTE has lower priority 2 and would be considered only after the higher-priority INET and INET-2 paths are unavailable or unusable, not merely when one INET circuit fails.