Appian Certified Senior Developer ACD200 Exam Questions with Experts Answers Updated Recently

 Two true statements are:

• It is not possible to undo changes from an import to all types of objects. Once a package is imported to an environment, it applies changes to the existing objects or creates new objects based on the package contents. There is no built-in mechanism to revert these changes or delete these objects automatically. Therefore, it is important to test the package in a non-production environment before importing it to production, and to backup any objects that may be overwritten by the import.
• It is possible to import the same package multiple times. A package can be imported to an environment more than once, as long as it does not contain any conflicts or errors that would prevent the import. However, importing the same package multiple times may not have any effect if there are no changes in the package contents or in the target environment since the last import. References: Prepare Deployment Packages, Application Deployment Guidelines

 The question is about troubleshooting slow response times on a SAIL interface. The following are two potential causes of the performance issues:

• Multiple a!save operations: This means that the interface has multiple expressions that use a!save to store data in variables or update components. This can cause performance issues, as each a!save operation triggers a server round-trip and refreshes all dependent components on the interface. You should minimize the use of a!save operations and use local variables or component parameters instead.
• Configuration of refresh variables: This means that the interface has components that use refresh variables to control when they should be refreshed based on changes in other components or variables. This can cause performance issues, as some components may be refreshed unnecessarily or too frequently due to incorrect or excessive refresh variables. You should optimize the refresh variables and use them only when needed.

The following are not likely causes of slow response times on a SAIL interface:

• Multiple rule inputs: This means that the interface has expressions that use rule inputs to pass data or parameters to expression rules. This does not affect the performance of the interface, as rule inputs are evaluated on the server and do not cause additional server round-trips or refreshes.
• Stacked button layout: This means that the interface has a layout component that arranges buttons in a vertical stack. This does not affect the performance of the interface, as it is a simple layout component that does not require any server interaction or refresh logic.

References:

• a!save()
• Refresh Variables
• Rule Inputs
• Stacked Button Layout