Selected Hybrid-Cloud-Observability-Network-Monitoring SolarWinds Certified Professional Questions Answers

Comprehensive and Detailed Explanation From Exact Extract:

SolarWinds NTA maps flow sources to nodes by matching the IP address. If a device exports flows using a secondary IP (not the one defined as "primary" in SolarWinds), and the setting "Allow matching by other IPs" is not enabled, the flow will not map to a known node. The documentation explains:

"If flow packets are received from an IP address not designated as primary in SolarWinds, and matching by other IPs is disabled, the flow source is not linked to a node. Enable the setting to match by any device IP to resolve this issue."

Comprehensive and Detailed Explanation From Exact Extract:

When the NetFlow collector service is showing a "down" status, the SolarWinds documentation recommends the following troubleshooting steps:

Confirm the database connection is up and server has free resources.

Explanation:The NetFlow collector service relies on connectivity to the SolarWinds database. If the database connection is lost or the server is out of resources (such as CPU or RAM), the service may go down or fail to start. Ensuring that the database is reachable and that the server has enough resources is a primary troubleshooting step.

Start or restart SolarWinds’ NetFlow service from Orion Service Manager.

Explanation:The official troubleshooting guidance instructs administrators to use the Orion Service Manager to start or restart the NetFlow service. This is a direct method to recover the NetFlow collector from a "down" state and is one of the first actions recommended by SolarWinds support.

Options B and C arenotrecommended in the official documentation:

Deleting and re-adding the NetFlow collector service is not a documented troubleshooting step and may cause loss of configuration.

Starting or restarting the generic "collector service" is not specific to NetFlow; the correct service is the NetFlow service.

Exact Extract from Official Guide:

"If NetFlow collector service status is down:

Ensure the SolarWinds database is online and the server is not experiencing resource issues.

Use the Orion Service Manager to start or restart the NetFlow service.

If the issue persists, review the NetFlow logs for errors and consult the SolarWinds Success Center for advanced troubleshooting."— (Network Performance Monitor Administrator Guide, Troubleshooting NetFlow and Service Issues)

Comprehensive and Detailed Explanation From Exact Extract:

For critical devices and connections, peak calculation is the recommended capacity planning method. This approach uses the highest observed utilization values within a time period, ensuring that planning accounts for maximum network demand and helps avoid bottlenecks during traffic spikes. SolarWinds documentation advises using peak calculations for important links to ensure network reliability and performance.

Comprehensive and Detailed Explanation From Exact Extract:

The radial gauge display in the SolarWinds web console requires that the polled value from the OID is a numeric type that supports gauge visualizations (for example, a percentage or value with a defined minimum and maximum). If the OID returns data that does not fit these requirements—such as text, status, or a counter with no clear min/max—the gauge option will be grayed out and unavailable for selection. This behavior is explained in the Universal Device Poller documentation, which states that only compatible numeric OID types can be displayed using radial gauge resources.