VNX100 Practice Exam Questions with Answers Versa Certified SD-WAN Associate Certification

In a Post-staging Template within the Versa SD-WAN solution, device-specific information such as WAN IP addresses, LAN subnets, and route ID are collectively referred to as "Bind Data". This term is used to describe the information that is specific to individual devices, which must be entered to tailor the general staging template to the unique requirements of each device during the staging process.

Within the Device Template workflow, you can configure various settings that dictate how the SD-WAN devices will behave in the network. While specific port numbers like WAN/LAN ports and serial numbers are usually predefined hardware attributes and not set via templates, Device Group classification and Direct Internet Access configurations are part of the template workflow. Device Groups help in classifying devices for easier management, and Direct Internet Access (DIA) settings determine how internet traffic will be handled, allowing for traffic to bypass central gateways and go directly to the internet, which can be crucial for optimizing the network performance.

To implement a third-party application server as a virtual machine on a Versa CPE, the Service Chain Template should be used. This is because the Versa uCPE solution supports service chaining capabilities which are necessary for steering traffic to and from third-party virtual network functions (VNFs) to Versa Operating System (VOS) instances. The Versa uCPE solution can manage the lifecycle of third-party VNFs, including the ability to bring up an out-of-band management interface for each VM, connecting it to the Versa secure management channel, and routing management and control plane traffic accordingly??.

Security zones in a Versa Secure SD-WAN solution group interfaces into security domains, controlling how traffic is processed and filtered through the network. These zones play a key role in the segmentation of traffic, improving security posture by enforcing distinct policies for different zones. They do not separate routing information into different routing tables or hide interfaces from tenants in a multi-tenant environment; rather, they are integral in the enforcement of security boundaries within the network.

In a Versa Secure SD-WAN solution, security zones are utilized primarily to group interfaces into security domains and provide segmentation of traffic. This approach enhances the security posture by isolating different types of traffic based on organizational policies or compliance requirements, thereby limiting the spread of threats across zones.

• Security Zones Group Interfaces into Security Domains (Answer A): Security zones in Versa SD-WAN are used to group multiple interfaces (either physical or virtual) into distinct domains. This grouping is strategic for enforcing security policies that are specific to a zone. For instance, a zone could be designated for guest access and have different access restrictions and monitoring compared to an employee zone.
• Security Zones Provide Segmentation of Traffic (Answer B): Traffic segmentation within Versa SD-WAN is achieved through the use of security zones. By segmenting traffic, organizations can enforce security policies tailored to the type of traffic or the sensitivity of the data within each segment. This is crucial for controlling resource access and reducing the potential impact of security breaches.

Security zones do not inherently separate routing information into separate routing tables (Option C), nor are they primarily used to hide interfaces from tenants in a multitenant environment (Option D).

References:This detailed explanation is based on the security management practices and capabilities defined in Versa Secure SD-WAN solutions, as outlined in the Versa Networks Academy Library and supplemented by standard network security principles.

Versa SD-WAN headend components, which include the Versa Controller, Versa Director, and Versa Analytics, offer flexible deployment options. They can be deployed on bare metal servers, as virtual machines, or as a hybrid of both, depending on the scalability needs and the available infrastructure at the data center or cloud environment. This flexibility ensures that Versa SD-WAN can adapt to a variety of enterprise environments and deployment scenarios.?

A Versa Analytics reporting view provides the capability to send reports by email, generate reports periodically, and create custom reports. This means administrators can set up automated report generation to be received at specific intervals, providing insights into the network's performance and security posture. These reports can be tailored to specific needs through custom report creation, ensuring relevant data is highlighted and presented as required.

In the exhibit shown, the gear icon next to the VLAN setting in a template workflow indicates a place where you can input variable data for each device that shares this template. The gear icon typically represents settings that are customizable for each individual deployment. Therefore, you would select the gear icon for a VLAN in a template workflow when each device requires a unique VLAN configuration on the vni-0/1 interface. This allows for the VLAN ID to be specified per device when the template is applied, accommodating the requirement that each device may be connected to a different VLAN in its respective location.

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The roles of a Versa Controller include onboarding SD-WAN VOS branches into the network and maintaining a secure control channel with each node. The Versa Controller authenticates branch VOS instances, handles management activities between the remote and headend nodes, and distributes control plane information. It does not provide Internet breakout, which is a function typically performed by edge devices at the branches themselves, nor does it provide clock synchronization to the branches, which is generally a function of network protocols like NTP that operate independently of SD-WAN control.?

Versa CPEs are indeed activated using Zero Touch Provisioning (ZTP), which automates the configuration process and reduces operational complexity. Furthermore, all components of the Versa SD-WAN solution support high availability configurations to ensure continuous operation and minimal disruption in the event of component failures. Versa Director and Versa Controllers can be deployed in redundant configurations, and Versa Analytics can be clustered for resilience and high availability.

Versa Director provides real-time monitoring capabilities for all services running in Versa CPE. It offers visibility into the live status, performance, and health of the services, which is crucial for proactive management and rapid troubleshooting of any issues that may arise in the network. This capability enables network administrators to closely monitor the functioning of various services within the CPE and take immediate action if any anomalies are detected??.

C. Versa Analytics has built-in ping, traceroute, tcpdump, and speed test tools.Versa Analytics is equipped with built-in tools such as ping, traceroute, tcpdump, and speed test capabilities. These tools are essential for diagnosing and resolving network issues. They enable network operators to test connectivity, trace the path of packets across the network, capture traffic for analysis, and measure the bandwidth of network connections. Having these tools integrated within Versa Analytics simplifies the process of network diagnostics and ensures that network operators can efficiently manage and optimize network performance????.

The policy shown in the exhibit appears to match traffic flows based on multiple conditions involving the source zone and the application. Given the information in the screenshot:

• The policy is configured with multiple zones as source zones:Intf-LAN1-ZoneandIntf-WLAN-Zone.
• An application is specified:SHAREPOINT.

The policy is likely to be applied to traffic originating from either of the specified zones and specifically related to the SharePoint application. This implies that both conditions related to the source zones are not mutually exclusive but rather a union; the same goes for the application condition.

Given this interpretation, the correct set of conditions that match the policy shown would be:

B.Traffic flows that meet any of the following two conditions:

• Source Zone - Intf-LAN1 Zone
• Source Zone - Intf-WLAN-Zone

In addition, the below condition must also match:

• Application - SharePoint

This means that traffic will match the policy if it comes from either theIntf-LAN1-Zoneor theIntf-WLAN-Zoneandis SharePoint application traffic.

However, to be more precise in the context of Versa SD-WAN configurations, it's important to note that policies are usually applied when all conditions within a single rule are met. If the configuration in the screenshot intends to express that traffic is matched if it comes from either of the two zones and is for the SharePoint application, then the correct answer should reflect this logic. If the configuration system is set up to require all conditions in a rule to be met, then the answer could potentially be different. Since the user interface design can sometimes vary, it’s important to understand the specific logic of the system in question.

The Direct Internet Access (DIA) option in the configuration of split tunnels for an SD-WAN device, as shown in the exhibit, is a feature that allows traffic destined for the internet to bypass the SD-WAN overlay network and be sent directly out of the local branch’s internet connection. This can significantly improve access to cloud services andinternet performance by reducing latency and avoiding backhauling traffic through the corporate data center or another central location.

When DIA is enabled, traffic that is destined for the internet does not traverse the SD-WAN overlay network; instead, it is routed directly from the branch to the internet. The SD-WAN appliance can still enforce security policies on this traffic, and it can also be programmed to dynamically decide whether to use the DIA path based on real-time performance metrics and other criteria.

By implementing the BGP default route advertisement into the local LAN Virtual Routing and Forwarding (VRF) of the tenant, the SD-WAN appliance advertises a default route to the local site. This allows the site to route internet-bound traffic directly to the internet without having to send it across the SD-WAN network. This eases the internal network traffic load and can potentially reduce costs associated with data transmission over the corporate WAN.

References:The explanation provided above aligns with standard SD-WAN architecture and practices for configuring split tunnels and the use of Direct Internet Access in SD-WAN environments.

When changes to a device configuration are made in the Versa Director through templates, it is crucial to ensure that these changes propagate to the actual branch device. The correct steps involve:

• Committing the Device Template configuration to the appliance (Answer B): This step is necessary because any changes made in the device template need to be actively committed to ensure they are pushed to the specific branch device orappliances that are associated with this template. This action updates the appliance with the latest configuration details, including the static IP address changes for the WAN link.
• Updating the Device Bind Data in Workflows with the IP address and gateway of the Internet WAN link (Answer D): This involves updating the binding configurations that specifically tie device templates to actual hardware or site-specific configurations. It is essential when changes such as IP addressing are involved, as the binding data must accurately reflect the network topology and addressing used by the devices.

References:The detailed steps and necessity for these actions are derived from standard Versa SD-WAN configuration practices as reflected in the comprehensive Versa configuration manuals and best practices documents available through Versa Networks Academy Library and configuration guides.