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Versa Networks VNX301 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Operations and Troubleshooting5%- Diagnostics and problem resolution
- Monitoring and logging
Topic 2: Versa SD-WAN Infrastructure20%- Versa Director components and functions
- Versa Controller and Analytics
- Edge device management and deployment
Topic 3: Configuration and Provisioning15%- Template-based configuration
- Service deployment and onboarding
- Zero-touch provisioning
Topic 4: Underlay and Overlay Technologies20%- Overlay architecture and concepts
- Overlay connectivity and tunneling
- Underlay network design and requirements
Topic 5: Network Topologies and Routing15%- Routing protocols and path selection
- High availability and redundancy
- Hub-and-spoke, full-mesh, hybrid topologies
Topic 6: SD-WAN Services and Policies15%- Application steering and traffic policies
- QoS and bandwidth management
- SLA monitoring and link optimization
Topic 7: Security Services10%- Segmentation and threat protection
- VPN and encryption
- Integrated firewall and IPS

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Versa Networks Versa Certified SD-WAN Specialist (VNX300) Sample Questions (Q50-Q55):

NEW QUESTION # 50
In an HA active-active deployment, one device has two WAN networks, INET-1 and MPLS-1 , and its peer also has two WAN networks, INET-2 and MPLS-2 . In this scenario, how many subinterfaces will be created on the cross-connect link between the devices by an HA active-active workflow?

Answer: B

Explanation:
The correct answer is D . In a Versa HA active-active branch deployment, the cross-connect link between the two CPE devices is used to extend WAN transport reachability between the peers. Versa SD-WAN design documentation explains that, in an HA active-active design, a cross-connect cable between the two devices extends one device's transport VR to the other device and vice versa. For example, the documentation describes the cross-connect as extending the MPLS-Transport-VR to one device and the Internet- Transport-VR to the peer device.
In the question, there are four total WAN networks across the HA pair: INET-1 , MPLS-1 , INET-2 , and MPLS-2 . The HA active-active workflow must create separate logical subinterfaces on the cross-connect link for each WAN network so that each transport segment can be extended and kept logically separated across the two appliances. Therefore, the number of subinterfaces created on the cross-connect link equals the total number of WAN networks across the HA pair, which is four .
Options A, B, and C are incorrect because they undercount the number of required transport extensions. Two subinterfaces would only account for two WAN networks, but this design has four separate WAN transport networks.


NEW QUESTION # 51
A customer is running VOS Release 22.1.3 on both the speed-test client and server. Which sequence is used by the Versa speed test to calculate bandwidth?

Answer: D

Explanation:
The correct answer is C . Versa documentation states that for Releases 22.1.3 and later , the speed test factors in network latency to derive results. In these releases, the speed test is performed in three stages : a ping test, an upload test, and a download test. The ping test calculates link latency, and the speed test uses that latency data while performing the upload and download portions.
The same documentation notes that the speed test can measure bandwidth speeds up to 1 Gbps, with actual measurement depending on factors such as in-path shapers and latency. It also states that the test may use up to 45 MB of data per upload or download in the best case and 90 MB for a complete test.
Older releases behave differently. For Releases 21.2 and earlier, the speed test is performed in two stages: upload and download. Therefore, because the question specifically states Release 22.1.3 on both client and server, the correct sequence is ping, upload, and download.


NEW QUESTION # 52
A branch uses a template variable for the WAN VLAN ID. During deployment, Branch-A receives VLAN
100 and Branch-B receives VLAN 200 from device bind data while using the same template. Which statement is correct?

Answer: B

Explanation:
The correct answer is A . Versa template-based provisioning is designed to separate common configuration from site-specific values. A device template can define common interface, service, routing, and SD-WAN behavior, while variables and device bind data provide unique values for each appliance. This allows the same template to be reused across many branches while assigning different WAN IP addresses, gateways, VLAN IDs, circuit names, or other per-site parameters during onboarding.
In this scenario, Branch-A and Branch-B use the same template but receive different WAN VLAN IDs from bind data. That is normal and expected in a scalable SD-WAN deployment. Without variables, administrators would need to create a separate template for every site, which would be operationally inefficient and increase configuration drift.
The Controller does not automatically rewrite VLAN IDs after IPsec comes up; VLAN IDs must be part of the generated device configuration. It is also not required to duplicate the device template for each branch. The correct Versa design is reusable templates plus unique bind-data values.


NEW QUESTION # 53
You are onboarding a branch with one WAN and one LAN interface. After a successful branch activation, the branch is not able to reach the Versa Controller. You realize that the WAN gateway IP address originally entered under the Device Bind Data menu in Versa Director is incorrect. Which action will you perform to solve the problem?

Answer: A

Explanation:
The correct action is to update the WAN gateway IP address in Device Bind Data and onboard the branch appliance again. Device Bind Data supplies site-specific values, such as WAN interface addressing and gateway information, that are merged with the workflow and template configuration during onboarding. If the wrong WAN gateway is entered, the branch may activate successfully from a workflow perspective, but the resulting WAN routing configuration is incorrect. As a result, the branch cannot establish proper transport reachability to the Controller. Versa troubleshooting documentation explains that, after establishing transport connectivity from a branch to a Controller, at least one WAN interface must be available, and the branch then establishes IKE-based IPsec connectivity to the Controller. If that IKE/IPsec connectivity fails, the Controller- facing ptvi interface remains down.
Changing the configuration only from the Appliance context is not the best answer because the incorrect value originated in the bind-data source used for provisioning. Modifying it manually from the branch CLI is also not recommended because the device is managed by Versa Director and template-driven configuration. Resetting the device does not automatically discover or "ping" the correct gateway. The correct remediation is to fix the bind data and repeat onboarding so the branch receives the correct generated configuration.


NEW QUESTION # 54
Examine the exhibit below.
A DoS Profile shown in the exhibit is applied to an SD-WAN branch.
Referring to the exhibit, which statement is correct?

Answer: D

Explanation:
The correct answer is B . The DoS profile in the exhibit is a Classified Profile using Source IP Only as the classification key. For TCP flood protection, the profile is enabled and shows an Alarm Rate of 5000 packets per second , an Activate Rate of 7000 packets per second , a Maximum Rate of 100000 packets per second , a Drop Period of 300 seconds , and an action of Random . This means the first threshold, 5000 pps, is used to trigger alarm behavior, while the second threshold, 7000 pps, activates the configured mitigation action. Since the selected action is Random , packets are randomly dropped when the TCP rate reaches the activate threshold.
Versa documentation shows that DoS policies can match traffic using source, destination, service, application, schedule, IP version, DSCP, and other conditions, and that a DoS policy can set either an aggregate or classified DoS profile. It also documents that DoS policies support enforcement actions and logging through LEF profiles for DoS events. Therefore, 7000 pps does not merely generate an alarm, and it does not mean complete dropping. Complete dropping is not selected in the exhibit.


NEW QUESTION # 55
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