Troubleshoot solutions by using Application Insights

Play an AI-generated podcast conversation about this lesson

What is the benefit of using standard metrics over log-based metrics?

Enables visualization of event-based data from logs

More dimensions for superior data analysis

Pre-aggregated during collection for better query time performance (correct)

Allows retention of a complete set of events for analytical and diagnostic value

How can developers send events manually for log-based metrics?

By using the namespace selector to switch between log-based and standard metrics

By writing code that explicitly invokes the SDK (correct)

By relying on automatic collection of events from auto-instrumentation

By creating powerful dashboards and configuring alerts

What is the purpose of the Application Insights blades in the Azure portal?

Allow developers to switch between log-based and standard metrics

Enable retention of a complete set of events for analytical and diagnostic value

Pre-aggregate standard metrics for better performance at query time

Act as an analytical and diagnostic tool for visualizing event-based data from logs (correct)

What kind of data analysis is log-based metrics superior for?

Ad-hoc diagnostics Signup and view all the answers

What are some techniques used by Application Insights to reduce telemetry volume?

Sampling and filtering Signup and view all the answers

How are pre-aggregated metrics stored in Application Insights?

As pre-aggregated time series with key dimensions Signup and view all the answers

Which SDK version for.NET implements pre-aggregation of metrics during collection?

2.7 SDK or later Signup and view all the answers

How does pre-aggregation of metrics benefit query time performance?

Retrieving data happens faster and requires less compute power Signup and view all the answers

What is the impact of sampling and filtering on the accuracy of standard metrics sent by default?

The accuracy isn't affected by sampling or filtering Signup and view all the answers

How does the Application Insights backend populate the new metrics for SDKs that don't implement pre-aggregation?

By aggregating the events received by the Application Insights event collection endpoint Signup and view all the answers

How does ingestion sampling impact the accuracy of pre-aggregated metrics?

Ingestion sampling will never impact the accuracy of pre-aggregated metrics Signup and view all the answers

What enables new scenarios such as near real-time alerting on dimensions of metrics and more responsive dashboards?

Pre-aggregated metrics Signup and view all the answers

When is Auto-Instrumentation the preferred instrumentation method for monitoring Application Insights?

When no developer investment is required and source code access is not available Signup and view all the answers

In what circumstances should the Application Insights SDK be installed?

To monitor web app, background components, and JavaScript within web pages, regardless of hosting in Azure Signup and view all the answers

Which technology is natively supported for distributed tracing by Application Insights SDKs?

.NET Core Signup and view all the answers

What is the purpose of installing a small instrumentation package in your app when using the Application Insights SDK?

To direct telemetry data to an Application Insights resource using a unique token Signup and view all the answers

What is the purpose of availability tests in Application Insights?

To monitor the availability and responsiveness of web applications or websites Signup and view all the answers

How many types of availability tests are available in Application Insights?

Three Signup and view all the answers

What can be tested using availability tests in Application Insights?

HTTP or HTTPS endpoints accessible from the public internet Signup and view all the answers

What can Application Insights do to monitor availability and responsiveness of a web app or website?

Send web requests at regular intervals from points around the world Signup and view all the answers

What is a feature of the URL ping test (classic) in Application Insights?

Allows for retries and custom success criteria Signup and view all the answers

What is a characteristic of the standard test (Preview) in Application Insights?

Includes SSL certificate validity and proactive lifetime check Signup and view all the answers

How many availability tests can be created per Application Insights resource?

Up to 100 Signup and view all the answers

What is the preferred solution for multi-request or authentication test scenarios in Application Insights?

Custom TrackAvailability test Signup and view all the answers

When using private DNS in availability tests, what is the recommended alternative if public domain name servers cannot resolve the domain names of the tested endpoints?

Use custom TrackAvailability tests Signup and view all the answers

What method can be used to send the results of custom availability tests to Application Insights?

TrackAvailability() method Signup and view all the answers

What does each node on the Application Map represent?

An application component or its dependencies with health KPI and alerts status Signup and view all the answers

What triggers the discovery of components related to a specific component on the Application Map?

A set of queries triggered when first loading the application map Signup and view all the answers

What are components in a distributed/microservices application?

Independently deployable parts of the application with code-level visibility or access to telemetry Signup and view all the answers

How does the app map find components in a distributed application?

By following HTTP dependency calls made between servers with the Application Insights SDK installed Signup and view all the answers