Free Practice Questions for SolarWinds Hybrid-Cloud-Observability-Network-Monitoring Exam

Device Studio allows you to define calculated values based on multiple polled results. To aggregate per-core CPU usage into a single metric, you can create a calculated value (such as the average) using the outputs from all cores.

From the documentation:

“Device Studio enables you to define calculated values (such as sum or average) when multiple SNMP values are returned, allowing you to represent a total or average CPU usage.”

To request an update to the SolarWinds MIB database, you must provide a complete SNMP walk or MIB walk from the device in question. This allows SolarWinds to identify and incorporate new OIDs and their definitions into the database.

From the documentation:

" Submit a request with a full SNMP walk or MIB walk output from your device. This provides the necessary OID and device structure for the SolarWinds team to update the MIB database. "

To create a NetPath probe in SolarWinds, you need to specify a source (which requires a Windows-based agent or node) and a destination port. The documentation states:

“To deploy a NetPath probe, select a Windows node or agent as the source and specify the connection port for the service to be monitored. Linux nodes and agents are not supported for NetPath probes.”

Unknown flow traffic often occurs when SolarWinds receives flow data from sources not defined in its database, or when flow-enabled devices are not sending data to the expected port.

Add the devices and interfaces to SolarWinds ' database: Ensures flow data is properly associated with monitored objects, resolving the " unknown " status.

Ensure flow-enabled devices send data to the appropriate port: If data is sent to the wrong port, SolarWinds cannot process it correctly, leading to unknown events.

SolarWinds documentation notes:

" Unknown flow traffic typically indicates a mismatch between flow sources and known device/interface configurations, or incorrect UDP port configuration. Registering devices/interfaces and verifying port assignments resolves most unknown flow issues. "

When the SolarWinds Log Analyzer web console is in " live mode, " it automatically refreshes the log viewer data every 10 seconds by default, ensuring users see near real-time event streams.

The documentation states:

" In live mode, Log Analyzer refreshes data every 10 seconds to display the most recent events as they arrive. "

The Flow Navigator in SolarWinds NetFlow Traffic Analyzer (NTA) is a powerful custom filter and analysis tool. It enables users to apply multiple filters to NetFlow data, allowing the visualization of specific statistics about the entire network or selected subsets, such as all traffic from a certain IP range or application. This approach eliminates the need to manually click through device-by-device views, instead providing comprehensive traffic analysis across the whole monitored environment through a single, customizable interface.

To monitor and configure High Availability (HA) mode for site-to-site VPN tunnels on a Cisco ASA firewall, SolarWinds uses SNMP for standard device and interface metrics, and CLI polling for advanced VPN and HA state details. SNMP provides general health data, while CLI polling (using Device Studio or Network Insight) collects information not available via SNMP, such as detailed VPN and HA status.

ICMP polling in SolarWinds only provides basic status (up/down) by sending ping requests to the device. For more detailed statistics such as interface traffic, CPU load, and memory usage, SNMP polling must be enabled. The documentation states:

" ICMP polling provides only basic reachability and response time. To collect detailed statistics such as device health, performance, and interface details, SNMP polling must be configured on the device and enabled in SolarWinds. "

SolarWinds Hybrid Cloud Observability (HCO) supports capturing flow data and CBQoS data using:

A. IPFIX: (IP Flow Information Export) is the IETF standard for exporting flow information, supported for both flow data and CBQoS.

C. NetFlow: Developed by Cisco, widely used for flow and CBQoS data collection.

J-Flow is primarily for flow data (from Juniper devices), and SNMP is not a flow export protocol.

The documentation states:

" NetFlow (including NetFlow v9) and IPFIX are supported for flow and CBQoS data collection. These standards provide extensive network traffic and QoS visibility within HCO. "