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Monitoring and Observability verified P99 P99 is the 99th percentile of a measured set, such as request duration or dependency latency. In Azure monitoring and Kusto queries, it shows the value at or below which 99 percent of samples fall, helping teams examine extreme tail behavior. Performance telemetry intermediate 4 commands Aliases: 99th percentile, p99 latency, tail percentile, extreme tail latency Quick peek Open full term page

Monitoring and Observability learning-path-anchor Telemetry events Telemetry events are breadcrumbs that say something meaningful happened in an application. They are different from raw logs because they usually have a clear event name and structured properties. A checkout completed, a document uploaded, a feature flag changed, or a device registered can all be telemetry events. In Azure Monitor Application Insights, these events help teams understand behavior, investigate incidents, and measure product outcomes. Good events are intentional, consistently named, and tied to the que Application data advanced 5 commands Aliases: event telemetry, custom events, Application Insights events, Azure Monitor events Quick peek Open full term page

Monitoring and Observability premium Browser telemetry Browser telemetry is client-side performance and usage data collected from web browsers, commonly through the Application Insights JavaScript SDK in Azure Monitor. Frontend performance advanced 3 commands Aliases: No aliases yet Quick peek Open full term page

Databases complete SQL performance recommendation Microsoft Learn describes Azure SQL performance recommendations as portal guidance generated from database workload analysis. Recommendations identify changes such as creating indexes, dropping duplicate indexes, or adjusting schema patterns that could improve performance or correct workload-specific issues, and administrators can review, apply, or script actions. Azure SQL performance tuning intermediate 5 commands Aliases: Azure SQL performance recommendation, Database advisor recommendation, SQL tuning recommendation, Azure SQL advisor recommendation Quick peek Open full term page

Analytics field-manual-complete Kusto query performance Kusto query performance describes how efficiently Azure Data Explorer, Fabric, Azure Monitor, or Sentinel executes KQL, including how much data a query scans, which operators it uses, how resources are consumed, and whether service limits or workload controls affect results. Azure Data Explorer intermediate 4 commands Aliases: No aliases yet Quick peek Open full term page

Analytics premium Azure Data Explorer A fully managed, high-performance analytics service for near-real-time analysis of large telemetry, log, event, and time-series datasets. Real-time analytics intermediate 5 commands Aliases: ADX, Kusto Quick peek Open full term page

Monitoring and Observability premium Instrumentation key Instrumentation key controls which Application Insights component receives telemetry and how older application configurations identify the target monitoring resource. Teams see it in application insights resource properties, app settings. It is not a secret access key, API key, SAS token, Log Analytics workspace ID, or managed identity credential; confusing them can create missing telemetry, cross-environment data pollution. Use the term when reviewing access, monitoring, cost, recovery, or performance. It keeps architects, operators, security reviewers, and support teams focused on the same setting, resource, or behavior. Application Insights Fundamentals 5 commands Aliases: ikey, Application Insights instrumentation key, AI instrumentation key, telemetry instrumentation key Quick peek Open full term page

Monitoring and Observability premium Interaction to Next Paint Interaction to Next Paint controls how teams measure whether web pages feel responsive after real user interactions, especially for Azure-hosted web apps and customer portals. Teams see it in microsoft edge devtools, microsoft clarity dashboards. It is not server response time, Time to First Byte, First Input Delay, Cumulative Layout Shift, or a backend CPU metric; confusing them can create slow clicks, abandoned checkout flows. Use the term when reviewing access, monitoring, cost, recovery, or performance. It keeps architects, operators, security reviewers, and support teams focused on the same setting, resource, or behavior. Web Vitals Intermediate 5 commands Aliases: INP, Core Web Vitals INP, web responsiveness metric, interaction responsiveness Quick peek Open full term page

Networking premium Internet egress Internet egress controls how workloads reach public endpoints for updates, APIs, package feeds, SaaS services, telemetry, and other internet-reachable dependencies. Teams see it in virtual networks, nat gateways. It is not inbound internet traffic, private endpoint traffic, ExpressRoute private peering, internal ingress, or Azure service-to-service traffic over private routes; confusing them can create data exfiltration paths, blocked updates. Use the term when reviewing access, monitoring, cost, recovery, or performance. It keeps architects, operators, security reviewers, and support teams focused on the same setting, resource, or behavior. Outbound connectivity Intermediate 5 commands Aliases: outbound internet traffic, egress to internet, public egress, internet-bound traffic Quick peek Open full term page

Monitoring and Observability premium KQL KQL controls how operators search telemetry, detect incidents, investigate performance, build dashboards, create alerts, and summarize operational evidence across Azure services. Teams see it in log analytics workspaces, azure monitor logs. It is not SQL, PromQL, OData filters, ARM template expressions, Azure Data Factory expression language, or application code; confusing them can create missed incidents, expensive queries. Use the term when reviewing access, monitoring, cost, recovery, or performance. It keeps architects, operators, security reviewers, and support teams focused on the same setting, resource, or behavior. Query language Fundamentals 5 commands Aliases: Kusto Query Language, Kusto query, Azure Monitor query language, Sentinel query language Quick peek Open full term page

Analytics premium Kusto materialized view Kusto materialized view is a managed aggregation over a source table or another materialized view that keeps a continuously updated result for faster queries. Kusto query optimization Advanced 5 commands Aliases: ADX materialized view, Kusto MV, materialized view in Azure Data Explorer Quick peek Open full term page

Monitoring premium Application Insights Application Insights is the application performance monitoring capability in Azure Monitor. It collects OpenTelemetry or SDK telemetry such as requests, dependencies, exceptions, traces, metrics, and availability results so teams can continuously understand live application health, performance, failures, and user-impacting behavior. Application observability fundamentals 4 commands Aliases: Azure Application Insights, App Insights, Azure Monitor Application Insights, application performance monitoring, APM Quick peek Open full term page

Monitoring and Observability premium Availability result Availability result is the recorded outcome of an Application Insights availability test run, including whether the probe succeeded, how long it took, and where it ran. In Azure, teams encounter it when teams query Azure Monitor Logs after a synthetic web test reports failures, slow responses, or regional differences. The useful question is what behavior Availability intermediate 4 commands Aliases: AppAvailabilityResults, availability test result, Application Insights availability result Quick peek Open full term page

Monitoring and Observability premium Availability test Availability test is an outside-in monitor that repeatedly calls a public HTTP or HTTPS endpoint and records whether it responded quickly enough. In Azure, teams encounter it when product teams need synthetic checks for websites, APIs, or critical external dependencies before users report an outage. The useful question is what behavior it proves, who owns Availability intermediate 4 commands Aliases: Application Insights availability test, web test, standard test, synthetic test Quick peek Open full term page

AI and Machine Learning premium Azure AI metrics Azure AI metrics is the measurable signals used to observe Azure AI applications, model endpoints, agents, evaluations, safety checks, and business outcomes. Azure AI services intermediate 4 commands Aliases: AI metrics, AI service metrics, Azure AI Metrics Advisor, Azure Monitor metrics for AI, Metrics Advisor, time series anomaly detection Quick peek Open full term page

Databases premium DTU A DTU, or Database Transaction Unit, is a bundled Azure SQL Database performance measure that combines CPU, memory, data I/O, and log I/O for DTU-based service tiers. Azure SQL fundamentals 4 commands Aliases: Database Transaction Unit, Azure SQL DTU Quick peek Open full term page

Analytics learning-path-anchor Synapse workload group A Synapse workload group is a dedicated SQL pool workload management object that reserves, caps, and grants resources for classified requests. It uses settings such as MIN_PERCENTAGE_RESOURCE, CAP_PERCENTAGE_RESOURCE, and request resource grant percentages to shape isolation, containment, concurrency, and execution behavior. Synapse Analytics fundamentals 5 commands Aliases: workload group in Synapse, dedicated SQL pool workload group, CREATE WORKLOAD GROUP, Synapse workload isolation group Quick peek Open full term page

Monitoring and Observability premium Azure Monitor Azure Monitor is Microsoft’s unified observability service for collecting, analyzing, and acting on telemetry from Azure, hybrid, and application workloads. It brings together metrics, logs, traces, events, alerts, workbooks, and Application Insights capabilities so teams can understand health, performance, and reliability. Monitoring fundamentals 3 commands Aliases: Azure Monitor, Monitor, Azure observability, Log Analytics, Application Insights, Azure metrics and logs Quick peek Open full term page

AI and Machine Learning premium Context window The amount of input and output text a model can process in one request. Generative AI advanced 3 commands Aliases: No aliases yet Quick peek Open full term page

Monitoring and Observability premium Correlation ID A correlation ID links telemetry records that belong to the same request, operation, or transaction. Tracing fundamentals 3 commands Aliases: No aliases yet Quick peek Open full term page

Management and Governance premium Cost recommendation Cost recommendation is an Azure glossary term for an Azure Advisor or Cost Management suggestion that identifies a likely way to reduce spend or improve cost efficiency. In practice, it helps teams reason about turning usage and configuration telemetry into actionable savings opportunities such as right-sizing, cleanup, reservations, or commitment planning using live Azure evidence, documented ownership, and Microsoft Learn guidance. It should be reviewed through security, reliability, operations, cost, and performance lenses before production changes. Azure Advisor intermediate 3 commands Aliases: No aliases yet Quick peek Open full term page

Analytics learning-path-anchor Databricks Photon The native vectorized Azure Databricks engine for accelerating eligible SQL, DataFrame, ETL, and streaming workloads. Databricks intermediate 4 commands Aliases: Photon engine, Photon acceleration, Databricks vectorized engine Quick peek Open full term page

Databases learning-path-anchor Table A table is the basic place where structured data lives in a database. Each row is one record, and each column describes one attribute, such as customer ID, order date, amount, or status. In Azure, tables show up in Azure SQL Database, SQL Managed Instance, Synapse dedicated SQL pools, Fabric warehouses, PostgreSQL, MySQL, and... Database intermediate 4 commands Aliases: database table, SQL table, relational table, data table Quick peek Open full term page

Monitoring and Observability learning-path-anchor Throughput Throughput is the amount of work a system completes over time, such as requests, messages, bytes, events, or transactions per second. In Azure, teams measure it with service metrics, logs, and capacity settings to judge whether an app, database, storage account, or messaging pipeline can sustain demand. Performance intermediate 4 commands Aliases: Throughput, throughput, Azure Throughput, Microsoft Learn Throughput, requests per second, events per second, transactions per second, bytes per second, work completed over time Quick peek Open full term page

Monitoring and Observability premium Application map Application Map is an Application Insights view that visualizes application components and dependencies using telemetry, helping teams identify bottlenecks and failure hotspots. Application Insights fundamentals 2 commands Aliases: application map Quick peek Open full term page

Monitoring and Observability premium AppRequests AppRequests is an Azure Monitor Logs table for Application Insights request telemetry, including request duration, result code, success state, operation, and related application context. Application Insights table fundamentals 2 commands Aliases: Application Insights requests table, apprequests Quick peek Open full term page

Analytics field-manual-complete Kusto retention policy A Kusto retention policy controls when data is automatically removed from Azure Data Explorer or Fabric tables and materialized views. It is commonly used for continuously ingested data whose usefulness is age-based, and can be configured at database, table, or view scope. Azure Data Explorer intermediate 6 commands Aliases: No aliases yet Quick peek Open full term page

Storage field-manual-complete Premium block blob account A premium block blob account is a special Azure Storage account for blob workloads that care more about low latency and high transaction rates than the lowest storage price. Storage accounts fundamentals 5 commands Aliases: No aliases yet Quick peek Open full term page

Analytics verified Queued ingestion Queued ingestion is an Azure Data Explorer ingestion method that accepts incoming data, stages it, batches it according to ingestion policy, and writes optimized batches into tables. It favors reliable, high-throughput loading over immediate per-record availability for operational analytics workloads. Azure Data Explorer intermediate 5 commands Aliases: ADX queued ingestion, Kusto queued ingestion Quick peek Open full term page

Databases complete SQL Query Store Microsoft Learn describes Query Store as a SQL feature that captures a history of queries, execution plans, and runtime statistics for review. It helps troubleshoot performance changes, especially regressions caused by plan changes, and is available across SQL Server, Azure SQL Database, Azure SQL Managed Instance, and related SQL platforms. SQL performance monitoring intermediate 5 commands Aliases: Query Store, Azure SQL Query Store, SQL Server Query Store, query performance history Quick peek Open full term page

Storage premium Append Block the Blob Storage operation that commits a new block of data to the end of an existing append blob. Blob Storage intermediate 12 commands Aliases: Append Block, append block Quick peek Open full term page

Monitoring and Observability verified Data collection endpoint An Azure Monitor resource that provides regional endpoints used by agents and data collection rules for configuration access and telemetry ingestion. Azure Monitor data collection Intermediate 4 commands Aliases: DCE, Azure Monitor DCE, monitor data collection endpoint Quick peek Open full term page

Monitoring and Observability verified Data collection rule An Azure Monitor resource that defines what telemetry to collect, how to transform it, and where to send it. Azure Monitor data collection Intermediate 4 commands Aliases: DCR, Azure Monitor DCR, monitor collection rule Quick peek Open full term page

Analytics field-manual-complete Kusto Query Language Kusto Query Language, or KQL, is the query language used across Azure Data Explorer, Microsoft Fabric, Azure Monitor, and Microsoft Sentinel to explore structured, semi-structured, and text data, filter records, summarize results, detect patterns, and build operational analytics and dashboards. Resource Graph fundamentals 4 commands Aliases: KQL Quick peek Open full term page

Management and Governance top-250-pre130-priority-upgraded Advisor recommendation Advisor recommendation is a personalized Azure Advisor action that suggests how to improve reliability, security, performance, cost, or operational excellence. In everyday Azure work, teams use it to find idle resources, missing redundancy, performance risks, upgrade needs, or governance issues before they become bigger problems. The useful evidence is category, impacted resource, impact level, recommendation Azure Advisor intermediate 4 commands Aliases: Azure Advisor recommendation, best practice recommendation, Advisor optimization item Quick peek Open full term page

Monitoring and Observability field-manual-complete Largest Contentful Paint Largest Contentful Paint is a web performance metric that measures how quickly the largest visible content element in the viewport finishes rendering. Microsoft guidance treats it as a loading-experience signal, commonly associated with Core Web Vitals and a target of about 2.5 seconds for good user experience. Web Vitals advanced 2 commands Aliases: No aliases yet Quick peek Open full term page

Monitoring and Observability field-manual-complete Live Metrics Microsoft Learn describes Live Metrics in Application Insights as real-time monitoring for web applications. It lets teams watch selected metrics and performance counters live, filter telemetry, and inspect sample failed requests or exceptions while an application is running. Application Insights fundamentals 2 commands Aliases: No aliases yet Quick peek Open full term page

Databases premium Cosmos DB provisioned throughput Cosmos DB provisioned throughput means the request-unit-per-second capacity reserved for a database or container, either manually or with autoscale behavior in Azure Cosmos DB. In plain English, it is the thing developers and operators check when they need to understand how data access really works. It connects the application model to capacity planning, throttling prevention, RU allocation, cost control, and predictable performance for operational workloads. For a production team, it turns vague database talk into a specific thing to inspect in the portal, SDK code, templates, metrics, and incident notes. Azure Cosmos DB intermediate 7 commands Aliases: No aliases yet Quick peek Open full term page

Analytics premium Azure Synapse Analytics Azure Synapse Analytics is Microsoft’s integrated analytics service for enterprise data warehousing, big data, data integration, and exploratory analytics. Synapse Analytics intermediate 6 commands Aliases: No aliases yet Quick peek Open full term page

Integration premium Capacity unit A capacity measure used by Event Hubs Dedicated clusters. Messaging and eventing intermediate 6 commands Aliases: No aliases yet Quick peek Open full term page

Analytics premium Data Factory Azure’s managed data integration service for creating pipelines that move, transform, schedule, and orchestrate data across cloud, SaaS, and hybrid stores. Data integration and orchestration Intermediate 6 commands Aliases: Data Factory, Data Factory, data factory Quick peek Open full term page

Analytics premium Databricks cluster policy A Databricks governance object that limits which cluster settings users can choose, helping control cost, security, runtime consistency, and workload standards. Azure Databricks intermediate 6 commands Aliases: Databricks compute policy, cluster policy, compute policy Quick peek Open full term page

Networking premium DDoS Protection Azure DDoS Protection is a network-layer protection service that helps defend Azure public IP resources against distributed denial-of-service attacks using always-on traffic monitoring, adaptive mitigation, telemetry, and response capabilities. Network security intermediate 6 commands Aliases: Azure DDoS Protection, DDoS Network Protection, DDoS IP Protection, distributed denial of service protection Quick peek Open full term page

Databases premium Dead tuples Dead tuples are obsolete PostgreSQL row versions left behind by UPDATE or DELETE operations until VACUUM or autovacuum cleans them up; in Azure Database for PostgreSQL they are an important signal for bloat, storage growth, and query performance. PostgreSQL intermediate 6 commands Aliases: PostgreSQL dead tuples, dead row versions, table bloat tuples, MVCC dead rows Quick peek Open full term page

Databases premium DTU model The DTU model is an Azure SQL Database purchasing model that bundles compute, memory, and I/O into service tiers and service objectives such as Basic, Standard, and Premium. Azure SQL fundamentals 6 commands Aliases: DTU purchasing model, Azure SQL DTU model Quick peek Open full term page

Networking premium ExpressRoute ExpressRoute lets organizations extend on-premises networks into Microsoft cloud services over private connectivity provided through a connectivity provider. Teams use it to connect datacenters, branches, or colocation environments to Azure with predictable private paths for workloads that need stronger latency, bandwidth, and routing control than public internet connections. It is not a VPN tunnel, a private endpoint, an internet performance guarantee, or proof that every connected application is secure, redundant, or correctly routed. In production, confirm circuit state, provider state, peering configuration, BGP routes, gateway SKU, connected virtual networks, bandwidth, metrics, DNS path, firewall path, and provider escalation details before. Hybrid connectivity intermediate 6 commands Aliases: Azure ExpressRoute, ExpressRoute circuit, private Microsoft cloud connectivity Quick peek Open full term page

Analytics premium Fabric capacity A Fabric capacity is a dedicated pool of compute resources that powers Microsoft Fabric workloads assigned to workspaces. Teams use it to provide shared compute for Fabric workspaces, reports, lakehouses, warehouses, notebooks, pipelines, and real-time workloads under an assigned capacity SKU. It is not a single workspace, a Power BI report, a storage account, a Databricks cluster, or a guarantee that every tenant workload has unlimited performance. In production, confirm capacity name, SKU, region, admin list, assigned workspaces, workload settings, metrics app evidence, throttling, refresh history, pause state, billing owner, and reservation or scaling plan before treating the design as. Microsoft Fabric intermediate 6 commands Aliases: Microsoft Fabric capacity, Fabric F SKU, Fabric compute capacity Quick peek Open full term page

Databases premium Flexible server A flexible server is the Azure Database deployment model for managed PostgreSQL or MySQL servers with configurable compute, storage, availability, maintenance, backup, and networking options. Teams use it to host managed relational databases with more control over maintenance windows, compute tiers, backup retention, high availability, private networking, stop-start behavior, and performance settings. It is not a self-managed VM database, a single-server compatibility promise, a free unlimited database tier, or proof that schema design, indexes, failover, and application connection pooling are correct. Azure managed databases intermediate 6 commands Aliases: Azure Database flexible server, PostgreSQL flexible server, MySQL flexible server, managed flexible database server Quick peek Open full term page

Web premium Functions Premium plan Functions Premium plan is a hosting plan for Azure Functions that keeps capacity ready while still supporting event-driven scaling for serverless workloads. Teams use it to reduce cold starts, run longer or heavier functions, use VNet integration, and control minimum and maximum capacity more deliberately than Consumption hosting. In daily Azure work, it appears when engineers stabilize latency-sensitive APIs, connect functions to private dependencies, prepare for event spikes, or replace overprovisioned dedicated App Service capacity. It is not a free tier, a guarantee that code is efficient, unlimited scale, or a substitute for trigger tuning and dependency performance testing. Azure Functions hosting advanced 6 commands Aliases: Elastic Premium plan, Azure Functions Premium, EP plan Quick peek Open full term page

Compute premium Accelerated networking for VM Accelerated networking is a VM network performance feature. When the VM size and OS support it, Azure can send packets through a faster path that reduces CPU work, latency, and jitter. It is most useful for network-intensive workloads. Virtual Machines intermediate 5 commands Aliases: No aliases yet Quick peek Open full term page