Which two of the following settings can be included in an alert cluster? (Choose two.)
Answer : A, D
AlertStack in Hybrid Cloud Observability (HCO) uses alert clusters to group related active alerts into a single actionable incident. According to the SolarWinds HCO Alerting documentation, these clusters are designed to provide context beyond the alert itself by correlating different types of data.
Metric Values (D): Alert clusters include the specific performance data that triggered the alert, such as high CPU load percentages or interface latency values. This allows the administrator to see the 'why' behind the incident immediately within the cluster view.
Audit Events (A): To assist in root cause analysis, alert clusters can include relevant audit events. For example, if a node goes down immediately after a configuration change, the audit event showing who logged in and what they changed will be correlated within the cluster to provide a timeline of events leading to the alert.
While 'device status' is often the result of an alert, the cluster is specifically built to aggregate the underlying metrics and events (Audit/Events) to give a comprehensive picture of the environment's health.
What is a benefit of polling devices with SolarWinds' Hybrid Cloud Observability (HCO) agent?
Answer : A
The SolarWinds Agent provides a robust alternative to agentless polling (SNMP/WMI), particularly in restricted environments. According to the SolarWinds Platform Agent requirements and port information, the primary architectural benefit is its communication security and firewall-friendly nature.
When using an agent, communication is consolidated. Instead of requiring a wide range of dynamic ports for RPC (as with WMI) or multiple ports for various SNMP checks, the agent communicates through a single fixed port (typically TCP 17778 for agent-initiated or 17790 for server-initiated communication). Furthermore, all traffic between the agent and the polling engine is encrypted using 256-bit AES encryption. This makes agents the ideal choice for monitoring:
DMZ Servers: Where opening numerous ports back to the management network is a security violation.
Cloud Instances (AWS/Azure): Where data must travel over public or semi-public links and requires encryption in transit.
Remote Sites: Where NAT or strict firewall rules make traditional SNMP/WMI polling impossible.
Option B is incorrect because agents still report back to the Polling Engine (Orion Information Service), which then handles the database writes. Option C is incorrect as the agent actually increases the granularity of data collection, which may slightly increase database volume rather than reduce load.
AlertStack is a specialized AIOps feature within Hybrid Cloud Observability (HCO) designed to simplify incident response. According to the SolarWinds HCO Alerting documentation, an AlertStack cluster is an autogenerated grouping of related active alerts on related entities.
The primary goal of clustering is to reduce 'alert fatigue.' Instead of presenting a technician with twenty individual alerts (e.g., one for high CPU on a server, one for an application failure, and three for slow database response), AlertStack analyzes the relationships and dependencies between those entities. If the platform determines that the alerts are part of a single root-cause event---such as a storage array failure impacting multiple virtual machines and their applications---it automatically clusters them into a single visual timeline. This clustering is autogenerated by the platform's machine learning engine based on the AppStack dependency map; it does not require a user to manually group the alerts. This allows the IT team to identify the 'blast radius' of an incident and focus on the primary failure point rather than triaging dozens of symptoms individually.
What is the minimum supported version for SolarWinds Hybrid Cloud Observability (HCO) database server?
Answer : C
The transition from the legacy Orion Platform to Hybrid Cloud Observability (HCO) introduced stricter hardware and software prerequisites to support modern features like AIOps, advanced mapping, and high-performance data processing. According to the SolarWinds Hybrid Cloud Observability System Requirements, the platform requires modern SQL features for optimal performance.
While legacy versions of the Orion Platform may have supported SQL Server 2016 or even 2012 in older iterations, MS SQL Server 2019 is identified as the minimum supported version for new HCO installations. This requirement ensures compatibility with the latest database indexing and query optimization techniques used by the SolarWinds Platform to handle the high volume of time-series data generated by observability nodes. Additionally, using SQL 2019 or later (including SQL 2022) is necessary to ensure the platform can utilize specific security protocols and memory management improvements that are not available in the end-of-life SQL 2012 or SP1 versions of 2016.
Alert escalation in the SolarWinds Platform allows for a tiered response to critical issues (e.g., emailing a technician immediately, then emailing a manager if the issue persists for 30 minutes). According to the SolarWinds HCO Alerting Engine documentation, the primary mechanism for a human operator to pause this automated progression is acknowledgement.
When an active alert is acknowledged via the Web Console, several things happen:
The alert is moved to the 'Acknowledged' category, signaling to other team members that the issue is being addressed.
The 'Acknowledge' timestamp and the user's name are recorded.
The escalation chain is halted. Any further actions defined in the 'Escalation' tab of the alert configuration---which were scheduled to fire after a certain duration---are cancelled.
It is important to note that acknowledging an alert does not clear the alert or stop the 'Reset Conditions' from being monitored. If the node stays down, the alert remains active, but no further new escalation emails will be sent. The alert will only truly disappear once the environment returns to a healthy state and the reset conditions are met.
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