Data Monitoring
Power BI: Custom visual overhead
A report becomes slow only after a third-party visual is added. Compare a copy using a native visual with identical data and filter conditions.
Read article : Power BI: Custom visual overheadAI, Cyber Defense & IT.
Learn. Build. Defend.
Explore 2246 articles on AI, cybersecurity, networking and IT. 25 detailed practical guides now include concrete inputs, step-by-step procedures, expected results and troubleshooting. The remaining 2221 articles retain their existing content.
AI Cyber Defense · 200 advanced articles
Defend against AI-assisted attacks with practical guidance for cybersecurity and network professionals. Ten reading paths contain 20 articles each, with threat scenarios, evidence requirements, control designs and authorized validation plans. The collection includes protection for AI systems used by defenders and businesses. Behavioral evidence is kept separate from claims about an attacker's use of AI.
AI Agents & Local LLM · 300 techniques
Build reliable agents and run language models on your own infrastructure. Explore 160 AI Agents techniques and 140 Local LLM techniques across 15 reading paths, with 20 techniques per path. Each guide includes an implementation action, a validation exercise, platform context and official documentation for further reading.
Data monitoring · 200 practical articles
Diagnose stale reports, late logs, slow queries and unreliable alerts. Explore 40 Power BI articles, 40 Splunk articles, 40 SQL Server articles, plus 20 each on PostgreSQL, MySQL, pipeline freshness and data quality, and alerting and observability. Each guide connects a specific symptom to evidence, a focused correction and validation.
CCNA exam preparation · 200 techniques
Prepare for CCNA 200-301 v1.1 with 100 focused topics, each paired with a recall guide and an original practice exercise. Build understanding through packet tracing, subnet calculations, lab evidence, troubleshooting and spaced review. These are independent study guides; 200 is the collection size, not the number of questions on the exam.
Reviewed 2 November 2026. Check Cisco’s current exam information before booking. Reading paths are study groupings and do not represent official exam weights.
Advanced Network & Infrastructure · 200 articles
Ten focused reading paths with 20 articles each. Start from routing and fabric behavior, then explore transport, name resolution, security, host performance, storage, availability and incident evidence.
AI assistant user guides
Choose a platform to explore 50 guides, from a first task brief to reusable workflows. Microsoft Copilot guides cover the consumer and Microsoft 365 experiences; in-app features depend on your account and license.
Find a useful read
Matching articles (200)
Clear filtersData Monitoring
Power BI: KPI unit consistency
A dashboard compares milliseconds with a seconds-based target. Trace metric units from source through transformations, measure definitions and visual formatting.
Read article : Power BI: KPI unit consistencyData Monitoring
Power BI: Business calendar alignment
Month-to-date results disagree with an operations report using fiscal periods. Compare calendar tables, fiscal boundaries and cutoff times for the same transactions.
Read article : Power BI: Business calendar alignmentData Monitoring
Power BI: Performance regression acceptance
An optimized report is faster but changes a key business number. Compare a fixed test dataset, critical measures and timed interactions before and after the change.
Read article : Power BI: Performance regression acceptanceData Monitoring
Splunk: Event time versus index time
An alert appears late even though indexing is responsive. Compare event _time with _indextime for a bounded sample and inspect the producer clock.
Read article : Splunk: Event time versus index timeData Monitoring
Splunk: Timestamp parsing failures
Events from one source appear at an implausible date. Inspect raw timestamp text, sourcetype parsing settings and the affected host time zone.
Read article : Splunk: Timestamp parsing failuresData Monitoring
Splunk: Multiline event boundaries
Stack traces become separate events and inflate error counts. Compare raw log boundaries with indexed events from one known exception.
Read article : Splunk: Multiline event boundariesData Monitoring
Splunk: Wrong sourcetype assignment
A new source arrives but expected extracted fields are absent. Inspect source, sourcetype and raw events rather than assuming ingestion failure.
Read article : Splunk: Wrong sourcetype assignmentData Monitoring
Splunk: Index selection and time scope
A dashboard reports no events despite healthy forwarding. Run a narrowly bounded search in the intended index and confirm the user's index access.
Read article : Splunk: Index selection and time scopeData Monitoring
Splunk: Forwarder connectivity gaps
One host stops appearing while other hosts continue to send logs. Correlate forwarder service state, output connectivity and receiver-side evidence for that host.
Read article : Splunk: Forwarder connectivity gapsData Monitoring
Splunk: Ingestion volume baselines
Daily event counts fall but the service is also receiving less traffic. Compare ingested volume with independent request or transaction counts for the same period.
Read article : Splunk: Ingestion volume baselinesData Monitoring
Splunk: Duplicate ingestion paths
The same event appears from two forwarding routes. Compare stable source event identifiers, host metadata and forwarding topology.
Read article : Splunk: Duplicate ingestion pathsStart with the foundations
Our original short guides to AI, account protection, and recovery.