Appian Certified Lead Developer : ACD-301

You are reviewing the Engine Performance Logs in Production for a single application that has been live for six months. This application experiences concurrent user activity and has a fairly sustained load during business hours. The client has reported performance issues with the application during business hours.During your investigation, you notice a high Work Queue - Java Work Queue Size value in the logs. You also notice unattended process activities, including timer events and sending notification emails, are taking far longer to execute than normal.The client increased the number of CPU cores prior to the application going live.What is the next recommendation?

• A. Add more engine replicas.
• B. Add more application servers.
• C. Optimize slow-performing user interfaces.
• D. Add execution and analytics shards

You need to connect Appian with LinkedIn to retrieve personal information about the users in your application. This information is considered private, and users should allow Appian to retrieve their information. Which authentication method would you recommend to fulfill this request?

• A. Basic Authentication with user's login information
• B. Basic Authentication with dedicated account's login information
• C. OAuth 2.0: Authorization Code Grant
• D. API Key Authentication

Users must be able to navigate throughout the application while maintaining complete visibility in the application structure and easily navigate to previous locations. Which Appian Interface Pattern would you recommend?

• A. Implement an Activity History pattern to track an organization's activity measures.
• B. Include a Breadcrumbs pattern on applicable interfaces to show the organizational hierarchy.
• C. Implement a Drilldown Report pattern to show detailed information about report data.
• D. Use Billboards as Cards pattern on the homepage to prominently display application choices.

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. In the Administration Console, configure the third-party database as a "New Data Source." Then, use a!queryEntity to retrieve the data.
• B. 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.
• C. 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.
• 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.

You add an index on the searched field of a MySQL table with many rows (>100k). The field would benefit greatly from the index in which three scenarios?

• A. The field contains many datetimes, covering a large range.
• B. The field contains a textual short business code.
• C. The field contains long unstructured text such as a hash.
• D. The field contains big integers, above and below 0.
• E. The field contains a structured JSON.