Appian ACD301 Actual Free Exam Questions & Community Discussion

Exam Code/Number: ACD301
Exam Name/Title: Appian Lead Developer
Certification Provider: Appian
Corresponding Certification: Lead Developer

Exam Questions: 47
Updated On: Jun 03, 2026

Question #21

As part of an upcoming release of an application, a new nullable field is added to a table that contains customer dat a. The new field is used by a report in the upcoming release and is calculated using data from another table.
Which two actions should you consider when creating the script to add the new field?

A. Add a view that joins the customer data to the data used in calculation.

B. Create a rollback script that clears the data from the field.

C. Create a script that adds the field and then populates it.

D. Create a rollback script that removes the field.

E. Create a script that adds the field and leaves it null.

Discussion 0

Correct Answer: C,D Vote an answer

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Question #22

What are two advantages of having High Availability (HA) for Appian Cloud applications?

A. Data and transactions are continuously replicated across the active nodes to achieve redundancy and avoid single points of failure.

B. An Appian Cloud HA instance is composed of multiple active nodes running in different availability zones in different regions.

C. A typical Appian Cloud HA instance is composed of two active nodes.

D. In the event of a system failure, your Appian instance will be restored and available to your users in less than 15 minutes, having lost no more than the last 1 minute worth of data.

E. In the event of a system failure, your Appian instance will be restored and available to your users in less than 15 minutes, having lost no more than the last 1 minute worth of data. This is an advantage of having HA, as it guarantees a high level of service availability and reliability for your Appian instance. If one of the nodes fails or becomes unavailable, the other node will take over and continue to serve requests without any noticeable downtime or data loss for your users.

Discussion 0

Correct Answer: A,D Vote an answer

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Question #23

Review the following result of an explain statement:

Which two conclusions can you draw from this?

A. The worst join is the one between the table order_detail and order.

B. The request is good enough to support a high volume of data. but could demonstrate some limitations if the developer queries information related to the product

C. The worst join is the one between the table order_detail and customer

D. The join between the tables order_detail, order and customer needs to be tine-tuned due to indices.

E. The join between the tables 0rder_detail and product needs to be fine-tuned due to Indices

Discussion 0

Correct Answer: D,E Vote an answer

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Question #24

You are planning a strategy around data volume testing for an Appian application that queries and writes to a MySQL database. You have administrator access to the Appian application and to the database. What are two key considerations when designing a data volume testing strategy?

A. Data from previous tests needs to remain in the testing environment prior to loading prepopulated data.

B. Large datasets must be loaded via Appian processes.

C. Testing with the correct amount of data should be in the definition of done as part of each sprint.

D. The amount of data that needs to be populated should be determined by the project sponsor and the stakeholders based on their estimation.

E. Data model changes must wait until towards the end of the project.

Discussion 0

Correct Answer: C,D Vote an answer

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Question #25

You have 5 applications on your Appian platform in Production. Users are now beginning to use multiple applications across the platform, and the client wants to ensure a consistent user experience across all applications.
You notice that some applications use rich text, some use section layouts, and others use box layouts. The result is that each application has a different color and size for the header.
What would you recommend to ensure consistency across the platform?

A. In each individual application, create a rule that can be used for section headers, and update each application to reference its respective rule.

B. In the common application, create a rule that can be used across the platform for section headers, and update each application to reference this new rule.

C. Create constants for text size and color, and update each section to reference these values.

D. In the common application, create one rule for each application, and update each application to reference its respective rule.

Discussion 0

Correct Answer: B Vote an answer

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