Free 500-420 sample questions

Correct answer: In the Business Transaction configuration, enable the 'Collect Snapshots' setting for all participating tiers in the transaction.

By default, a snapshot of an asynchronous transaction only includes a full call graph for the segment that triggered the snapshot (e.g., because it was very slow). To force the collection of call graphs for all participating segments, you must explicitly enable snapshot collection for each tier involved in the Business Transaction's configuration. This ensures that even if downstream segments are fast, their call graphs are included in the snapshot initiated by the entry point.

Correct answer: Import the internal CA's root certificate into the agent's bundled JRE truststore (` /jre/lib/security/cacerts`).

The 'PKIX path building failed' error indicates the agent's JVM does not trust the SSL certificate presented by the Controller. This is because the certificate is signed by an internal CA not present in the default Java truststore. The correct resolution is to import the internal CA's root certificate into the truststore used by the agent's JVM, thereby establishing a chain of trust.

Correct answers: A Critical condition where the value of `Business Transaction Performance > 95th Percentile Response Time (ms)` is `> (Baseline + 40%)` of the `Daily Trend`.; A Warning condition where the value of `Business Transaction Performance > 95th Percentile Response Time (ms)` is `> (Baseline * 1.2)` of the `Daily Trend`.

Correct answer: An Information Point configured on the `cart.addItem(Item item)` method.

Information Points are specifically designed to monitor business metrics from code that is not part of a Business Transaction entry point. By creating an Information Point on the `addItem` method, AppDynamics will automatically create metrics for Calls per Minute, which directly corresponds to the number of items added to carts, and this metric can then be used in custom dashboards.

Correct answer: Define a POJO-based Service Endpoint on the class containing the `calculateShippingRoute()` method.

A Service Endpoint is the ideal feature for this scenario. It allows you to monitor the performance of a specific class/method (a POJO in this case) as a distinct entity, complete with its own metrics like average response time and calls per minute. This isolates its performance from the calling Business Transactions and allows for independent trending, dashboarding, and health rule configuration, directly addressing all of the company's requirements.

Correct answer: True

This is true. The primary purpose of marking a transaction as a background task is to exclude its performance metrics (like slow or error transactions) from contributing to the application's overall health score and key performance indicators, as they are often long-running and not user-facing.

Correct answer: Thread contention for a shared resource.

'Time Waiting for Lock' explicitly indicates that the transaction's thread was blocked, waiting to acquire a lock (such as a synchronized block in Java) that was held by another thread. This is a classic sign of thread contention, where multiple threads are competing for exclusive access to the same resource.

Correct answer: An HTTP Request Data Collector.

The HTTP Request Data Collector is specifically designed to extract data from incoming HTTP requests, including headers, cookies, and parameters. To capture the `X-Customer-ID` header, the analyst would configure an HTTP Request Data Collector and specify the header name.

Correct answer: In the Dashboard's 'Settings' or 'Edit' mode.

The auto-refresh interval is a property of the individual dashboard. It can be configured by entering the dashboard's 'Edit' mode and accessing its settings, where the refresh interval can be enabled and set to the desired value, such as 1 minute (60 seconds).

Correct answers: Windows Performance Counters for .NET CLR Memory.; Windows Performance Counters for .NET CLR Exceptions.