A financial services firm is monitoring a critical trading application where multiple downstream microservices are called via a message queue. The performance team needs to ensure that if the entry point Business Transaction captures a snapshot, all correlated downstream asynchronous segments are also captured with full call graphs, regardless of their individual execution times. Which configuration ensures this behavior?
Answer and explanation
Correct answer: D
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.
Question 2
A new Java application agent is deployed, but it fails to register with the Controller. The agent logs show 'SSLHandshakeException: PKIX path building failed'. The operations team confirms that the Controller is using a custom SSL certificate issued by the company's internal Certificate Authority (CA). What is the most direct way to resolve this connectivity issue?
Answer and explanation
Correct answer: B
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.
Question 3
Multiple answers
A performance analyst is configuring a health rule for a 'User_Login' Business Transaction. The goal is to trigger a 'Warning' event if the 95th Percentile Response Time for the transaction over the last 15 minutes is 20% worse than the daily trend baseline, and a 'Critical' event if it is 40% worse. Which two conditions must be configured in the health rule to achieve this? (Select TWO)
Answer and explanation
Correct answers: A, B
Question 4
An analyst needs to create a custom dashboard that shows the total number of items added to shopping carts across an entire e-commerce application per minute. This specific action is performed by a method cart.addItem(Item item) which is not an entry point for any Business Transaction. Which AppDynamics feature should be used to capture and display this business-centric metric?
Answer and explanation
Correct answer: C
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.
Question 5
Case Study:
A logistics company, ShipFast, has a monolithic Java application for tracking shipments. They are experiencing severe performance degradation during peak hours. The application consists of a web frontend tier, a business logic tier, and a backend Oracle database. The development team suspects that a specific method, calculateShippingRoute(), within the business logic tier is the primary bottleneck, but they lack visibility. This method is called by multiple Business Transactions like 'TrackPackage' and 'SchedulePickup'.
The performance analysis team has been tasked with isolating the performance of the calculateShippingRoute() method itself, separate from the Business Transactions that call it. They need to see its average response time and calls per minute to determine if it is violating its internal SLO of 200ms. They also need to be able to trend this data over time and potentially alert on it, without creating excessive new Business Transactions.
Which AppDynamics configuration should the analyst implement to meet these requirements?
Answer and explanation
Correct answer: C
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.
Question 6
True or False: When a Business Transaction is converted to a background task, it will no longer be considered in the overall Application Health score.
Answer and explanation
Correct answer: A
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.
Question 7
During a performance investigation, an analyst identifies a transaction snapshot with a very long execution time. The call graph shows significant time spent in 'Time Waiting for Lock'. What is the most likely cause of this performance issue?
Answer and explanation
Correct answer: C
'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.
Question 8
A performance analyst wants to extract the value of a specific HTTP header, X-Customer-ID, from incoming requests and display it in transaction snapshots for the 'Process_Order' Business Transaction. Which type of Data Collector should be configured?
Answer and explanation
Correct answer: B
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.
Question 9
A custom dashboard has been created to show key business metrics. The stakeholders want the dashboard to automatically refresh its data every 60 seconds to provide a near real-time view. Where is this setting configured?
Answer and explanation
Correct answer: C
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).
Question 10
Multiple answers
A .NET application is experiencing high CPU and memory usage. The Machine Agent is installed and reporting basic hardware metrics. To gain deeper insight into CLR performance, which two additional sets of metrics should be enabled for the .NET Machine Agent? (Select TWO)
