VNX100 Versa Certified SD-WAN Associate Questions and Answers

The provisioning of Versa SD-WAN CPE devices can be accomplished through multiple methods, including:

• URL-based provisioning (Answer B): This method involves directing the CPE to a URL where it can download configuration files automatically. This is an efficient way to provision devices remotely and is widely used for initial device setup and configuration.
• Script-based provisioning (Answer C): This method allows network administrators to use scripts to automate the configuration process of CPEs. Scripts can be customized to apply specific configurations and policies based on the deployment requirements.

References:Both URL-based and script-based provisioning are standard practices detailed in Versa's deployment guides, which provide step-by-step instructions on using these methods for efficient and scalable CPE deployments.

When a speed test fails, it could be due to the speed test module not being activated or the speed test server not being enabled at the remote site. If the speed test module has not been activated, the required functionality to conduct the test will not be operational. Similarly, if the remote site does not have the speed test server enabled, it won't respond to speed test requests. Issues with the SLA path status or client configuration might be relevant to the performance and reachability but are not cited as direct reasons for a speed test failure within the documentation provided.

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.​

To monitor a Versa CPE interface's live data, you would use the Versa Director. The Versa Director provides a comprehensive interface for real-time monitoring and management of SD-WAN infrastructure, including the visualization of traffic flows and performance metrics. Through Versa Director, network operators can gain insights into transmission data for all traffic or SD-WAN-specific traffic, updated every few seconds, and detailed information about interface statistics​​.

Versa Analytics has the capability to not only generate customized daily reports on bandwidth usage for all sites in the network but also to schedule these reports to be sent via email. This function allows administrators to receive reports without having to log into the Versa Analytics portal, streamlining the process and ensuring that they have the necessary information on a regular basis​​.

To identify and diagnose intermittent network performance issues that occurred in the past,Versa Analytics dashboards (Answer B)are the most suitable component. Versa Analytics provides deep insights into historical data, enabling network administrators to analyze trends, performance metrics, and potential bottlenecks that occurred previously. The dashboards offer a comprehensive view of the network's operational performance over time, allowing for effective troubleshooting of issues that are not currently manifesting but did impact users in the past.

References:Versa Analytics dashboards are specifically designed to handle retrospective and real-time network data analysis, making them an essential tool for diagnosing past issues as described in Versa's official documentation on network analytics and performance monitoring.

When creating a device using workflows, two essential components are required: a Device Template and a Service Template. The Device Template is used to define the device's characteristics and configuration details, whereas the Service Template contains service-specific configuration such as routing, security policies, and features that may be applied to the device. These templates are crucial for automating device provisioning and configuration within the Versa SD-WAN architecture​​.

Versa Analytics offers REST APIs that facilitate northbound integration with third-party tools, allowing for enhanced automation and the ability to pull data into external systems for additional processing or visualization. Moreover, it provides real-time traffic monitoringdashboards that deliver visibility into network performance, application usage, and security events, aiding in swift and informed decision-making. These dashboards are crucial for maintaining an overview of the network's current state and rapidly diagnosing issues.​

Versa Analytics offers a suite of features aimed at enhancing visibility and control over SD-WAN networks. The true statements about Versa Analytics are:

• Versa Analytics provides REST APIs for northbound integration with third-party tools (Answer B): Versa Analytics is equipped with REST APIs that facilitate northbound integration, allowing organizations to seamlessly connect and integrate Versa's network data with third-party management, monitoring, and analytics tools. This integration capability is crucial for enterprises that utilize a diverse set of tools for network management and need to consolidate their network operations on a single platform.
• Versa Analytics provides real-time traffic monitoring dashboards (Answer D): One of the key features of Versa Analytics is its real-time traffic monitoring dashboards. These dashboards provide network administrators with live insights into network performance, traffic flows, and usage patterns, enabling them to make informed decisions quickly and effectively manage the network.

Option A (Versa Analytics provides the ability to configure logging parameters on SD-WAN CPEs) is incorrect because while Versa Analytics does involve extensive logging capabilities, the configuration of logging parameters typically occurs at the device or controller level, not within the analytics platform itself. Option C (Versa Analytics provides centralized logging information about the SD-WAN environment) is somewhat misleading; while Versa Analytics does centralize data for analysis, it primarily focuses on providing analytical insights and data visualizations rather than merely centralizing logging information.

References:This explanation is based on the functionalities provided by Versa Analytics as part of the Versa SD-WAN solution, emphasizing its capabilities in network data integration and real-time monitoring.

Using Versa Workflows, administrators can configure various routing protocols, including BGP for dynamic routing with external entities, OSPF for internal routing optimizations, and Static routing for fixed path network designs. These protocols are key components of SD-WAN deployments, enabling efficient and intelligent path selection, which is critical for the performance and reliability of the network.

The Versa Operating System (VOSTM) includes a broad set of IP services. Specifically, it includes Carrier-Grade NAT (CG-NAT), which allows private network spaces to be mapped to public IP addresses; Multicast protocols such as IGMP and PIM (in Releases 20.2 and later); and the NTP server for time synchronization. HTTP Proxy and CDN are not listed among the included features for the Versa Operating System in the provided documents.​

A security pack (SPack) within Versa VOS includes predefined objects such as anti-virus definitions, URL categories and reputations, and IDS/IPS signature definitions. These are components of Versa VOS's unified threat management capabilities, which are utilized toprotect the network against security threats. Operating system security updates and Versa Analytics security updates are not mentioned as part of the SPack predefined objects in the provided documents.

The Versa Operating System (VOSTM) is the software platform that provides routing, advanced SD-WAN, and SD-Security in a single software package. The VOS software is deployed in the branch, hub, cloud, and data center. Specifically, it is utilized within the Versa Controller, the Versa SD-WAN CPE, and the Versa SD-WAN Gateway, which are the components that use VOS to deliver their networking and security functions. Versa Director, on the other hand, is a centralized provisioning and management application that manages the VOS software instances but does not run the VOS itself. Versa Analytics is an analytics engine that provides insights into network traffic and events and also does not run the VOS itself.​

Versa Analytics and Versa Director support REST APIs, which allow integration with third-party applications and systems. The REST APIs provided by these components enable automation and programmability for various network management and analytics functions. Versa Controller and Versa CPE are not referenced in the provided documents as supporting REST APIs directly, although they interact with Versa Director, which does.​

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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In the event of a network outage, to verify the live status of the WAN links, Versa Director device monitoring dashboard and Versa Analytics sites availability dashboard are the tools to use.These components provide real-time visibility into the status and health of WAN links, allowing for rapid identification and troubleshooting of connectivity issues.​