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 The default auto-refresh interval for custom dashboards is 120 seconds. This means that the data displayed on the dashboard will be updated every two minutes. The auto-refresh interval can be configured by the dashboard owner or administrator from the dashboard settings. The auto-refresh interval can be set to any value between 15 and 300 seconds, or disabled altogether. The auto-refresh interval applies to all the widgets on the dashboard, unless a widget has its own refresh interval specified.https://docs.appdynamics.com/appd/23.x/latest/en/appdynamics-essentials/dashboards-and-reports/custom-dashboards/create-and-manage-custom-dashboards-and-templates

On a custom dashboard, a non-administrator user can view the following types of information:

• The company logo: A custom dashboard can display the company logo in the upper left corner of the dashboard. This can help to brand the dashboard and make it more recognizable for the intended audience. The logo can be configured by the dashboard owner or administrator from the dashboard settings1.
• The version of the AppDynamics Controller: A custom dashboard can display the version of the AppDynamics Controller in the upper right corner of the dashboard. This can help to identify the Controller that is hosting the dashboard and the features that are available. The version can be configured by the dashboard owner or administrator from the dashboard settings1.
• A Timeseries graph: A custom dashboard can display a Timeseries graph widget that shows the trend of a metric over time. This can help to visualize the performance and behavior of the application, server, or database that is being monitored. A Timeseries graph can be configured by the dashboard owner or administrator from the widget settings2.

A non-administrator user cannot view the following types of information on a custom dashboard:

• The current weather in Seattle: A custom dashboard cannot display the current weather in Seattle or any other location, as this is not a metric or data point that is reported by AppDynamics agents or the analytics platform. A custom dashboard can only display the data that is collected and stored by AppDynamics2.
• The number of AppDynamics licenses consumed: A custom dashboard cannot display the number of AppDynamics licenses consumed, as this is a Controller-level information that is only accessible by the Controller administrator. A custom dashboard can only display the data that is scoped by the dashboard owner’s permissions1 . https://docs.appdynamics.com/accounts/en/cisco-appdynamics-saas-deployment-user-management/manage-custom-roles-for-cisco-appdynamics/custom-dashboard-permissions

Business Transaction metrics are the key performance indicators that measure the health and performance of your applications. They include metrics such as average response time, calls per minute, errors per minute, and so on. You can use various types of performance degradation analysis to identify and troubleshoot the root causes of performance issues using Business Transaction metrics.

According to the Troubleshoot Business Transactions - AppDynamics, the following types of performance degradation analysis are used with Business Transaction metrics:

• Correlation Analysis: This type of analysis helps you to find the correlation between different metrics and events that may affect the performance of your Business Transactions. For example, you can use the correlation analysis to see how the response time of a Business Transaction is related to the CPU utilization of a node, or how the error rate of a Business Transaction is related to the number of slow database calls.
• Remote Services Analysis: This type of analysis helps you to understand how the performance of your Business Transactions is impacted by the calls to remote services, such as databases, web services, message queues, and so on. For example, you can use the remote services analysis to see the response time, call count, error count, and wait time of each remote service call, and drill down to the details of each call.
• Compare Releases: This type of analysis helps you to compare the performance of your Business Transactions across different releases of your application. For example, you can use the compare releases analysis to see how the response time, error rate, and throughput of your Business Transactions have changed after a new deployment, and identify any performance regressions or improvements.

Therefore, A (Correlation Analysis), B (Remote Services Analysis), and E (Compare Releases) are three types of performance degradation analysis that are used with Business Transaction metrics. References:

• Troubleshoot Business Transactions - AppDynamics
• Business Transaction - AppDynamics
• Cisco AppDynamics Associate Performance Analyst Certification

When troubleshooting an application using AppDynamics, the fastest way to narrow down a code problem with a specific business transaction is to follow this order:

• Review Application Dashboard: This is the first step to get an overview of the health and performance of your application and its components. You can see the key metrics, such as response time, throughput, error rate, and load, for each tier, node, and business transaction. You can also see the health rule violations, events, and alerts that indicate any issues or anomalies in your application.
• Check transaction scorecard: This is the second step to drill down to the details of a specific business transaction that you want to troubleshoot. You can see the transaction scorecard by clicking on the business transaction name on the application dashboard. The transaction scorecard shows the metrics, such as average response time, calls per minute, errors per minute, and slow calls, for the selected business transaction. You can also see the breakdown of the response time by tier, node, and remote service, and the distribution of the response time by percentile.
• Check transaction snapshots for problems: This is the third step to identify the root cause of the code problem for the selected business transaction. You can see the transaction snapshots by clicking on the View Snapshots button on the transaction scorecard. Transaction snapshots are the detailed records of the execution of a business transaction, including the call graph, the exit calls, the errors, the exceptions, the logs, the HTTP parameters, the cookies, the session attributes, and the custom data. You can use the transaction snapshots to analyze the code execution, the database queries, the web service calls, the message queues, the errors, and the exceptions that affect the performance of the business transaction.

Therefore, A (Review Application Dashboard > Check transaction scorecard > Check Transactions snapshots for problems) is the correct answer. References:

• Cisco AppDynamics Associate Administrator Certification
• Troubleshoot Business Transactions - AppDynamics
• Business Transaction - AppDynamics
• Transaction Snapshots - AppDynamics

To manage Controller security settings, you would need to grant the Security Administrator role to an existing user. The Security Administrator role is a built-in role that allows the user to access and modify the security settings of the Controller, such as encryption, certificates, authentication, authorization, and audit1. The Security Administrator role also inherits the permissions of the Credentials Administrator role, which allows the user to manage the credentials for the Controller and the agents2. The other roles listed do not have the permission to manage Controller security settings. The Administrator role can perform most administrative tasks, but not security-related ones2. The Analytics Administrator role can manage the analytics platform and data, but not theController security3. The Account Owner role can manage the account settings and licenses, but not the Controller security4

https://docs.appdynamics.com/appd/21.x/21.1/en/application-monitoring/install-app-server-agents/agent-to-controller-connections