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Appian Certified Lead Developer Sample Questions:

1. On the latest Health Check report from your Cloud TEST environment utilizing a MongoDB add-on, you note the following findings:
Category: User Experience, Description: # of slow query rules, Risk: High Category: User Experience, Description: # of slow write to data store nodes, Risk: High Which three things might you do to address this, without consulting the business?

A) Optimize the database execution. Replace the view with a materialized view.
B) Reduce the batch size for database queues to 10.
C) Reduce the size and complexity of the inputs. If you are passing in a list, consider whether the data model can be redesigned to pass single values instead.
D) Optimize the database execution using standard database performance troubleshooting methods and tools (such as query execution plans).
E) Use smaller CDTs or limit the fields selected in a!queryEntity().

2. As part of your implementation workflow, users need to retrieve data stored in a third-party Oracle database on an interface. You need to design a way to query this information.
How should you set up this connection and query the data?

A) Configure a timed utility process that queries data from the third-party database daily, and stores it in the Appian business database. Then use a!queryEntity using the Appian data source to retrieve the data.
B) In the Administration Console, configure the third-party database as a "New Data Source." Then, use a!queryEntity to retrieve the data.
C) Configure an expression-backed record type, calling an API to retrieve the data from the third-party database. Then, use a!queryRecordType to retrieve the data.
D) Configure a Query Database node within the process model. Then, type in the connection information, as well as a SQL query to execute and return the data in process variables.

3. An existing integration is implemented in Appian. Its role is to send data for the main case and its related objects in a complex JSON to a REST API, to insert new information into an existing application. This integration was working well for a while. However, the customer highlighted one specific scenario where the integration failed in Production, and the API responded with a 500 Internal Error code. The project is in Post-Production Maintenance, and the customer needs your assistance. Which three steps should you take to troubleshoot the issue?

A) Ensure there were no network issues when the integration was sent.
B) Analyze the behavior of subsequent calls to the Production API to ensure there is no global issue, and ask the customer to analyze the API logs to understand the nature of the issue.
C) Send the same payload to the test API to ensure the issue is not related to the API environment.
D) Obtain the JSON sent to the API and validate that there is no difference between the expected JSON format and the sent one.
E) Send a test case to the Production API to ensure the service is still up and running.

4. You are the lead developer for an Appian project, in a backlog refinement meeting. You are presented with the following user story:
"As a restaurant customer, I need to be able to place my food order online to avoid waiting in line for takeout." Which two functional acceptance criteria would you consider 'good'?

A) The user will click Save, and the order information will be saved in the ORDER table and have audit history.
B) The user cannot submit the form without filling out all required fields.
C) The user will receive an email notification when their order is completed.
D) The system must handle up to 500 unique orders per day.

5. You are just starting with a new team that has been working together on an application for months. They ask you to review some of their views that have been degrading in performance. The views are highly complex with hundreds of lines of SQL. What is the first step in troubleshooting the degradation?

A) Browse through the tables, note any tables that contain a large volume of null values, and work with your team to plan for table restructure.
B) Go through the entire database structure to obtain an overview, ensure you understand the business needs, and then normalize the tables to optimize performance.
C) Go through all of the tables one by one to identify which of the grouped by, ordered by, or joined keys are currently indexed.
D) Run an explain statement on the views, identify critical areas of improvement that can be remediated without business knowledge.

Solutions: