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

The official SolarWinds documentation specifies that the minimum RAM requirement for setting up log collection (Log Analyzer/LA) in Hybrid Cloud Observability is 16 GB. This ensures optimal performance and stability for log collection, processing, and storage within the SolarWinds environment.

Exact Extract from Official Guide:

“Minimum hardware requirements for Log Analyzer and log collection: 16 GB RAM, quad-core CPU, and sufficient storage depending on log volume.”

— (Log Analyzer Administrator Guide, “System Requirements” section)

Comprehensive and Detailed Explanation From Exact Extract:

SolarWinds Log Analyzer supports secure syslog forwarding using the TCP protocol. The industry standard and the default port used for secure syslog (Syslog over TLS/TCP) is port 6514. This is referenced in SolarWinds documentation where it specifies:

"For secure syslog forwarding, Log Analyzer uses TCP port 6514, which is the default for syslog over TLS, as defined by RFC 5425."

This ensures that log data is encrypted during transmission, enhancing security over the default UDP port 514 (which is used for non-secure syslog).

Comprehensive and Detailed Explanation From Exact Extract:

Device Studio pollers offer more advanced capabilities than traditional Universal Device Pollers (UDPs). While both can poll SNMP-enabled devices, Device Studio pollers can gather additional node details (such as chassis information and advanced device metrics) that UDPs are not able to access. UDPs are limited to polling OIDs and displaying simple numeric or textual values. The official documentation states that Device Studio expands the range of supported technologies and provides access to more detailed device information compared to UDPs.

Comprehensive and Detailed Explanation From Exact Extract:

SolarWinds NTA processes flow data via a dedicated collector component. Devices are configured to export flow records to the NTA collector, which ingests, stores, and analyzes the data.

"NetFlow Traffic Analyzer receives flow data from network devices using the NetFlow Collector service, which processes and stores traffic information for analysis."

No agent is required on target devices, and the collector is the key processing method.

Comprehensive and Detailed Explanation From Exact Extract:

Hiding an IP address group in IPAM management means that group will not appear in dashboards, charts, or reports, but the underlying data and group definition remain intact and are not deleted.

Comprehensive and Detailed Explanation From Exact Extract:

In NetFlow (especially Flexible NetFlow on Cisco devices), a flow monitor is applied to an interface to track and collect information about IPv4 (or IPv6) traffic. The flow monitor references a flow record and a flow exporter. The monitor itself is the entity configured on an interface to start the flow tracking process.

Comprehensive and Detailed Explanation From Exact Extract:

Universal Device Pollers (UDPs) in SolarWinds are tightly coupled with the polling engine on which they are configured. If the main polling engine fails, custom pollers do not automatically failover; as a result, statistics collection for those UDPs is interrupted. According to SolarWinds documentation:

"UDPs are assigned to a specific polling engine. If the polling engine fails, UDP statistics are not collected until the engine is restored."

"Universal Device Pollers are not supported on failover engines; they do not collect data from hot standby or failover engines."

Thus, options C and D directly reflect the official guidance.

Comprehensive and Detailed Explanation From Exact Extract:

If default SNMP polling is not returning data for a new device but works for others, it is likely that the device uses unique or vendor-specific MIBs not present in the SolarWinds MIB database. Updating the MIB database and building custom pollers (UDPs) for those MIBs allows you to collect the desired metrics. An SNMP walk may help you identify the OIDs, but building and assigning pollers is necessary for ongoing monitoring.

Universal Device Pollers (UDPs) are tied to the polling engine on which they are created. This means if a UDP is created on the main polling engine, it will only collect data for devices polled by that engine. To collect data from devices polled by an additional polling engine, you must create or assign the UDP on that engine as well.

Exact Extract from Official Guide:

“Universal Device Pollers are tied to the polling engine on which they are created. To monitor devices assigned to an Additional Polling Engine, the UDP must be created or assigned on that engine.”

— (Network Performance Monitor Administrator Guide, “Universal Device Pollers” section)

Comprehensive and Detailed Explanation From Exact Extract:

Applications and NBAR2 applications in top applications are sorted by bytes: The default sorting for the “Top Applications” view, including NBAR2 apps, is by bytes.

It is possible to combine applications and NBAR2 applications: SolarWinds allows combining standard and NBAR2-classified apps for alerting and reporting purposes.

Exact Extract from Official Guide:

"Top Applications, including NBAR2, are sorted by bytes and you can combine standard and NBAR2 application data in alerts and reports."

— (Network Performance Monitor Administrator Guide, “NBAR2 Applications” section)