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| Certification Vendor: | Versa Networks |
|---|---|
| Exam Name: | Versa Certified SD-WAN Specialist |
| Exam Number: | VNX301 |
| Available Languages: | English |
| Exam Format: | Multiple Select, Multiple Choice |
| Passing Score: | 70% |
| Exam Price: | USD 250 |
| Real Exam Qty: | 60 |
| Exam Duration: | 90 minutes |
| Related Certifications: | Versa Certified SD-WAN Expert |
| Certificate Validity Period: | 3 years |
| Sample Questions: | Versa Networks VNX301 Sample Questions |
| Exam Way: | Online proctored exam at Pearson VUE test centers |
| Pre Condition: | Recommended: Basic networking knowledge (CCNA/equivalent), familiarity with WAN technologies and enterprise network design |
| Official Syllabus URL: | https://www.versa-networks.com/partners/training-certification.html |
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NEW QUESTION # 24
A business-critical application should remain on the best SLA-compliant circuit. When all SLA-compliant circuits fail, the traffic must be dropped instead of being forwarded on a degraded path. Which forwarding- profile setting should be changed?
Answer: B
Explanation:
The correct answer is A . In Versa SD-WAN traffic steering, forwarding profiles define how traffic is mapped to WAN circuits, how next hops are selected, and how traffic behaves when SLA conditions are violated. If the requirement is to stop traffic when no SLA-compliant path is available, the relevant behavior is the SLA Violation Action . Setting this option to Drop prevents the VOS device from forwarding the matching traffic over a circuit that does not satisfy the policy's SLA requirements.
This is the opposite of using Forward , which allows traffic to continue even when the available next hops violate the SLA. Forward may be appropriate for best-effort applications where degraded delivery is better than no delivery, but it is not appropriate for strict business-critical applications that must not use a degraded path.
Nexthop Failure Action controls how the system behaves when a next hop fails, such as waiting for recovery or re-evaluating. Header compression affects packet overhead, and the recompute timer controls periodic recalculation timing. None of those settings directly enforce "drop when SLA is not met."
NEW QUESTION # 25
A branch has correct underlay speed and no asymmetric SD-WAN paths, but users still report packet loss during large transfers. You suspect QoS shaping is dropping traffic. Which command is most appropriate to verify interface-level CoS drops?
Answer: C
Explanation:
The correct answer is A . Versa throughput troubleshooting documentation includes a specific section titled Check that Packets Are not Dropped by CoS . It states that if a CoS shaper or rate limiter is configured on the VOS device, it may drop packets when traffic exceeds the configured shaping rate. To check whether CoS is dropping packets, Versa recommends commands including show class-of-services interfaces brief and show class-of-services interfaces detail interface-name.
The detailed interface output displays traffic statistics such as TX packets, TX packets dropped, TX bytes, TX bytes dropped, and per-traffic-class drops. This is exactly the evidence needed to confirm whether shaping or QoS enforcement is causing the observed loss.
show alarms last-n 10 may reveal major events but will not provide per-interface CoS drop counters.
show system uptime only indicates how long the system has been running. show cgnat tenants is relevant for NAT state and tenant CGNAT resources, not QoS drops.
NEW QUESTION # 26
Examine the exhibit below.
You are configuring Class of Service on a WAN-facing network interface, and you want to perform DSCP rewrite on the packets that are forwarded to the WAN.
However, you are not able to turn on DSCP rewrite.
Referring to the exhibit, what is the cause of this issue?
Answer: D
Explanation:
In the exhibit, the Add Associate Interface/Network window has Interface selected, and the interface name is set to vni-0/0 . The DSCP rewrite option is not available because rewrite behavior is intended to be applied at the network association level for the WAN network, not directly while associating only the physical
/logical interface. For WAN-facing CoS, the scheduler and shaping parameters can be attached to an interface, but DSCP rewrite policies are applied to remark traffic as it exits through a network context.
Versa SD-WAN design documentation explains that QoS rewrite rules rewrite packet QoS attributes as packets leave the VOS device, and that rewrite rules can modify IEEE 802.1p bits, IPv4 TOS/DSCP bits, and IPv6 traffic class bits. It also explains that a rewrite policy is commonly applied on a WAN network to remark traffic based on the forwarding class and loss priority assigned by QoS or App QoS policies. In the design example, Versa explicitly describes applying a QoS propagation or rewrite policy on the MPLS WAN network to remark traffic to a DSCP value. Therefore, the issue is the association type: it is set to Interface, not Network.
NEW QUESTION # 27
You are troubleshooting a branch that cannot form SD-WAN overlay tunnels. The branch has WAN interfaces up, but you suspect remote endpoint objects were not learned. Which VSM command should you use to verify whether remote site objects were learned from BGP or from configuration?
Answer: C
Explanation:
The correct answer is A . Versa data-path troubleshooting documentation gives a specific VSM control-plane workflow for checking SD-WAN tunnel objects. After connecting to the VSM daemon, administrators can use show vsm p2mp local-tunnel-sites 0 to inspect local site objects. To check whether remote site objects were learned from BGP or from configuration , Versa instructs administrators to issue show vsm p2mp tunnel-remote-endpoint tenant < tenant-id > on the VSM control plane.
This command is highly relevant when local WAN interfaces are operational, but overlay tunnel formation is incomplete. It shows remote endpoints such as Controllers, hubs, or branches, along with site type, site name, branch ID, tenant ID, remote WAN link information, and tunnel state-related fields.
show interfaces brief confirms interface state and IP addresses, but it does not show learned remote SD- WAN endpoint objects. CGNAT summary is unrelated to tunnel endpoint learning. System storage is useful for disk checks, but not for SD-WAN overlay endpoint troubleshooting.
NEW QUESTION # 28
Examine the exhibit below.
Spoke1 and Spoke2 are part of Spoke-to-Hub-Only spoke group, the hub is advertising a default route to both the spokes.
Referring to the exhibit, which statement is true?
Answer: C
Explanation:
In Versa SD-WAN, a Spoke-to-Hub-Only topology is specifically designed for deployments where spoke branches communicate only with hub resources and not with other spokes. Versa's SD-WAN design documentation states that in a spoke-to-hub-only topology, the default behavior is that only hub routes are advertised, and spoke routes are not re-advertised by the hub branch. It also explains that this topology is used when spokes do not have to communicate with each other.
Even though the hub in the exhibit advertises a default route, that does not change the topology behavior into spoke-to-spoke communication. The default route can attract unknown traffic from the spokes toward the hub, but the Spoke-to-Hub-Only policy prevents the spoke prefixes from being redistributed or imported in a way that allows spoke-to-spoke reachability. Versa documentation further shows that spoke routes are filtered using BGP communities and import policies, and that the spoke route table contains only destinations behind the hubs, not other spoke routes.
NEW QUESTION # 29
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