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Appian Certified Lead Developer: ACD300 Exam
"Appian Certified Lead Developer", also known as ACD300 exam, is a Appian Certification. With the complete collection of questions and answers, BraindumpsPass has assembled to take you through 37 Q&As to your ACD300 Exam preparation. In the ACD300 exam resources, you will cover every field and category in Appian Certification Program Certification helping to ready you for your successful Appian Certification.
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- Exam Code: ACD300
- Exam Name: Appian Certified Lead Developer
- Certification Provider: Appian
- Corresponding Certification: Appian Certification Program
- Updated: Sep 15, 2026
- No. of Questions: 37 Questions & Answers with Testing Engine
- Download Limit: Unlimited
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Appian ACD300 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Application Design and Data Modeling | - Records and record types design - Data types, data stores, and data modeling approach |
| Topic 2: Performance and Optimization | - Application performance tuning - Efficient expression and query design |
| Topic 3: Appian Platform Architecture | - Core platform components and architecture principles - Appian design best practices and scalability concepts |
| Topic 4: Process Modeling | - Process model design and best practices - Error handling and process optimization |
| Topic 5: Security and Administration | - User roles, groups, and security model - Environment management and deployment practices |
| Topic 6: Integration and Services | - Web APIs and integration patterns - Connected systems and integrations |
| Topic 7: Interface Design | - SAIL interface design and UI components - Expression rules and reusable components |
Appian Certified Lead Developer Sample Questions:
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 alqueryEntity 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 allqueryRecordType to retrieve the data.
- C. Configure a limed utility process that queries data from the thirdparty database daily, and stores It in the Applan business database, Then use alqueryEntity eating the Applan 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.
Correct Answer: A 🗳️
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You have created a Web API in Appian. with the following URL to call it:
https://exampleappiancloud.com/suite/webapi/usef_managefnent/ users ?username=)=john.smith.
Which is the connect syntax forreferring to the user name parameter'
- A. httpirequest formData username
- B. httpirequest.queryParameters users username
- C. httpirequest queryParameters.username
- D. httpirequest usees username
Correct Answer: C 🗳️
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For each requirement, match the most appropriate approach to creating or utilizing plug-ins Each approach will be used once.
Note: To change your responses, you may deselect your response by clicking the blank space at the top of the selection list.
Correct Answer:
Explanation
Requirement: Read barcode values from images containing barcodes and QR codes. Correct approach: C.
Smart Service plug-in Exact explanation of correct approach taken from Appian Documentation: A smart service plug-in is a type of plug-in that allows you to create custom smart services that can be used in process models. A smart service can perform complex logic, interact with external systems, or manipulate data in Appian. A smart service plug-in can also leverage Java code to implement the functionality of the smart service. A smart service plug-in would be suitable for reading barcode values from images, as it can use Java libraries or APIs that can scan and decode barcodes and QR codes from image files. A smart service plug-in can also return the barcode values as outputs that can be used by other nodes or processes in Appian. A smart service plug-in can also be configured with input parameters, such as the image file, the barcode type, or the output format, that can customize the behavior of the smart service. A smart service plug-in can also have error handling and logging features that can handle any exceptions or failures that might occur during the barcode reading process.
Requirement: Display an externally hosted geolocation mapping applications interface within Appian to allow users of Appian to see where a customer (stored within Appian)is located. Correct approach: A. Web-content field Exact explanation of correct approach taken from Appian Documentation: A web-content field is a type of user interface component that allows you to display web content from an external source in a SAIL interface. A web-content field would be suitable for displaying an externally hosted geolocation mapping applications interface, as it can embed the web content in an iframe and render it within the Appian interface.
You can also pass parameters to the web content, such as the customer's location, using the url parameter of the web-content field. A web-content field can also interact with other components in the Appian interface, such as buttons, grids, or forms, using the postMessage API. This way, you can create a seamless user experience that integrates the external geolocation mapping applications interface with the Appian functionality.
Requirement: Display an externally hosted geolocation mapping applications interface within Appian to allow users of Appian to select where a customer is located and store the selected address in Appian. Correct approach: A. Web-content field and C. Smart Service plug-in Exact explanation of correct approach taken from Appian Documentation: A web-content field and a smart service plug-in would be suitable for displaying an externally hosted geolocation mapping applications interface within Appian to allow users of Appian to select where a customer is located and store the selected address in Appian. A web-content field would be suitable for displaying the external geolocation mapping applications interface, as explained above. A smart service plug-in would be suitable for storing the selected address in Appian, as it can use Java code to receive the address data from the web content, validate it, and write it to a data store entity or a process variable.
Requirement: Generate a barcode image file based on values entered by users. Correct approach: B.
Component plug-in Exact explanation of correct approach taken from Appian Documentation: A component plug-in is a type of plug-in that allows you to create custom user interface components that can be used in SAIL interfaces. A component plug-in can also leverage Java code to implement the functionality of the component. A component plug-in would be suitable for generating a barcode image file, as it can use Java libraries or APIs that can encode values into barcode formats and generate image files. A component plug-in can also display the barcode image file in the Appian interface and allow users to download or print it. A component plug-in can also interact with other components in the Appian interface, such as text fields, buttons, or forms, using the a!refreshVariable() function. This way, you can create a dynamic user experience that updates the barcode image file based on the values entered by users.
You are taskedto build a large scale acquisition application for a prominent customer. The acquisition process tracks the time it takes is fulfill a purchase request with an award.
The customer has structured the contract so that there are multiple application dev teams.
How should you design for multiple processes and forms, while minimizing repeated code?
- A. Create a Center of Excellence (CoE)
- B. Create a common objects application.
- C. Create duplicate processes and forms as needed
- D. Create a Scrum of Scrums sprint meeting for the team leads
Correct Answer: B 🗳️
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