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Appian ACD200（Appian認定シニア開発者）試験は、開発者のAppianプラットフォームにおける熟練度を測定するために設計された認定プログラムです。この試験は、Appianプラットフォームの包括的な理解を持ち、自分のスキルと知識を検証したい個人を対象としています。認定試験は、Appianデザインパターン、Appianオブジェクト、Appian式、Appianベストプラクティスなど、幅広いトピックをカバーし、開発者のAppianプラットフォームの熟練度を厳密にテストします。
質問 # 18
You are analyzing a poorly-performing process model.
You find that the process model in question has a lot of nodes and is mainly used to do background updates.
Which two things can be done to increase its performance? (Choose two.)
- A. Remove all activity chaining.
- B. Define the correct alerts for the process model.
- C. Refactor some nodes into subprocesses when possible.
- D. Use swim lanes in the process model.
正解：A、C
解説：
Explanation
Two things that can be done to increase the performance of a poorly-performing process model that has a lot of nodes and is mainly used to do background updates are:
* Remove all activity chaining. Activity chaining is a feature that allows a process to move from one node to another without waiting for a commit point. This can improve the performance of some processes, but it can also cause memory issues and data inconsistency if used excessively or incorrectly. Removing activity chaining can reduce the memory consumption and ensure data integrity of the process model.
* Refactor some nodes into subprocesses when possible. Subprocesses are processes that are called from within another process model. Refactoring some nodes into subprocesses can simplify the main process model and improve its readability and maintainability. It can also reduce the memory usage and execution time of the main process model, as subprocesses are executed in parallel and have their own memory allocation. References: Activity Chaining, Subprocess Node, Process Model Best Practices
質問 # 19
Match each of the business data concepts to an Appian data type. Each data type may be used once, more than once, or not at all.
正解：
解説：
質問 # 20
You want to approve or reject an incoming deployment.
Which three roles allow you to do so? (Choose three.)
- A. System Administrators
- B. Specified Reviewer Group
- C. Application Editors
- D. Application Viewers
- E. Application Administrators Group
正解：A、B、E
質問 # 21
You are reviewing a recent Health Check report and notice that a process model has high memory consumption.
What are three possible reasons for this? (Choose three.)
- A. Too many process variables
- B. Too many nodes
- C. Nested CDTs with large numbers of fields
- D. Misconfigured error alerts
- E. Gateway nodes with multiple incoming flows
正解：A、B、C
解説：
Explanation
Three possible reasons for high memory consumption of a process model are:
* Too many process variables. Process variables are used to store data that is needed throughout the process execution. However, having too many process variables can increase the memory usage of the process engine, especially if the variables store large or complex data types, such as documents or CDTs. It is recommended to use local variables whenever possible, and to delete or nullify process variables that are no longer needed.
* Nested CDTs with large numbers of fields. CDTs are custom data types that define the structure and validation of business data in Appian. CDTs can be nested within other CDTs to create complex data models. However, nesting CDTs with large numbers of fields can result in high memory consumption and performance degradation, as each field requires additional memory allocation and processing. It is recommended to limit the number of fields and nesting levels of CDTs, and to use references instead of embedding whenever possible.
* Too many nodes. Nodes are the graphical elements that represent the activities and events in a process model. Having too many nodes in a process model can increase the memory usage and complexity of the process execution. It can also make the process model harder to read and maintain. It is recommended to simplify the process model by using subprocesses, smart services, or expression rules to encapsulate common or reusable logic. References: Process Variables, Custom Data Types, Process Model Best Practices
質問 # 22
You are required to test a Related Action that updates record data. You need to make sure that the correct users can access the form and that the data is updating successfully.
Which is the most appropriate testing method to achieve this using Appian?
- A. User Interface (UI) Testing
- B. Load Testing
- C. Unit Testing
- D. Performance Testing
正解：C
質問 # 23
When creating a Web API, which two items are configured in the Administration Console? (Choose two.)
- A. Service Account
- B. API Key
- C. Connected System
- D. LDAP Authentication
正解：A、B
質問 # 24
You need to find a list of expression rules that are causing performance issues, or have caused performance issues in the last 30 days.
What should you do?
- A. Observe the runtime of all test cases.
- B. Access the Rule Performance tab in the Administration Console.
- C. Inspect the application server log.
- D. Use the Monitoring tab to find rules with a low completion percentage.
正解：B
解説：
Explanation
The requirement is to find a list of expression rules that are causing performance issues, or have caused performance issues in the last 30 days. The best way to do this is to access the Rule Performance tab in the Administration Console, as it provides a dashboard that shows the execution time, frequency, and impact of expression rules in a given time period. You can filter the rules by application, rule type, or execution time, and sort them by various metrics. You can also drill down into each rule to see the details of its executions and test cases. The other options are not as effective or convenient for this purpose, as they either do not provide enough information, require manual inspection, or are not related to expression rules. References:
* Rule Performance
質問 # 25
You are troubleshooting slow response times on a SAIL interface.
What are two potential causes of the performance issues? (Choose two.)
- A. Multiple rule inputs
- B. Stacked button layout
- C. Configuration of refresh variables
- D. Multiple a!save operations
正解：C、D
解説：
Explanation
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
質問 # 26
During a sprint retrospective meeting, you need to get the team thinking about the outcomes of the last sprint.
Which two basic questions should you ask? (Choose two.)
- A. What went well?
- B. Who did well in this sprint?
- C. What didn't go well and can be improved?
- D. What are the blockers?
正解：A、C
解説：
Explanation
A sprint retrospective is a meeting that takes place at the end of each sprint, where the team reflects on what went well and what can be improved in their work process. The purpose of the retrospective is to identify and implement actions that can enhance the team's performance and satisfaction in future sprints. Two basic questions that can help facilitate the retrospective are: What went well? and What didn't go well and can be improved? These questions allow the team to celebrate their achievements, acknowledge their challenges, and generate ideas for improvement.
質問 # 27
You want to generate an email body which varies from one Appian environment to another. For instance, between DEV and TEST.
According to Appian best practices, how should you define the environment name? (Choose the best answer.)
- A. Create an expression rule and update its value post-deployment.
- B. Create an environment-specific constant.
- C. Create a constant and update its value post-deployment.
- D. Create a stored procedure.
正解：B
質問 # 28
You need to create and design an ERD that represents the client's bookstore inventory.
Match the entity descriptions to the most appropriate relationship. Each relationship type will be used once.
正解：
解説：
質問 # 29
In Scrum, who is the right person responsible for prioritizing product backlog? (Choose the best answer.)
- A. Lead Developer
- B. Product Manager
- C. Product Owner
- D. Tester
正解：C
質問 # 30
You need to show joined data from 5 tables. Each table contains a large number of rows and could generate a large result set after executing the Joins.
The business is not expecting live data, and a 2-hour refresh is acceptable. Performance is a top priority.
What should you use? (Choose the best answer.)
- A. Table
- B. Materialized view
- C. Stored procedure
- D. View
正解：C
質問 # 31
Which review format is the most efficient way to coach team members and improve code quality? (Choose the best answer.)
- A. Automated Code Scanning
- B. Peer Dev Review
- C. Retrospectives
- D. User Acceptance Testing
正解：B
解説：
Explanation
Peer Dev Review is the most efficient way to coach team members and improve code quality, because it allows developers to share feedback, learn from each other, and identify and fix issues before they become problems. Peer Dev Review also fosters collaboration, communication, and best practices among the team.
Peer Dev Review can be done using tools like Appian Designer or Appian Code Review. References: [Peer Dev Review], [Appian Code Review]
質問 # 32
Your organization is considering options for integrating with external systems from within Appian.
Which Appian object is designed to allow you to share base URL and authentication details across multiple integrations? (Choose the best answer.)
- A. A connector function
- B. A web API
- C. A connected system
- D. An integration
正解：C
解説：
Explanation
The connected system is the object that allows to set an URL and key to be used in different integrations.
https://docs.appian.com/suite/help/22.3/Connected_System_Object.html
質問 # 33
Your organization requires a process to be initiated via an Appian web API.
Which HTTP request methods should the API use?
- A. POST
- B. HEAD
- C. CONNECT
- D. GET
正解：A
質問 # 34
You create an Integration that modifies the data.
In which three locations can it be called? (Choose three.)
- A. SAIL saveinto parameter
- B. Process model
- C. Expression or Rule
- D. Web API (POST, PUT, DELETE)
- E. Web API (GET)
正解：B、C、D
質問 # 35
You are tasked with configuring a process model to store the result of an expression rule for every item in a list.
Which process model design has the lowest memory footprint?
- A. Call a sub-process for each item in the list.
- B. Configure a script task to use a!foreach to iterate over each item in the list.
- C. Run MNI over a script task for each item in the list.
- D. Create a loop of smart service nodes in the process model and execute it for each item in the list.
正解：B
解説：
Explanation
The question is about designing a process model to store the result of an expression rule for every item in a list with the lowest memory footprint. The best design for this purpose is to configure a script task to use a!foreach to iterate over each item in the list, as it allows you to execute an expression rule for each element of an array without creating multiple nodes or subprocesses in the process model. A script task is a node that executes an expression without user interaction, and a!foreach is a function that applies an expression to each element of an array and returns an array of results. The other options are not optimal for this purpose, as they either create more nodes or subprocesses in the process model, which consume more memory and resources.
References:
* Script Task
* a!foreach()
質問 # 36
You need to build a process model that transforms a large data set.
Which two things should you ensure to include in your process model? (Choose two.)
- A. A subprocess is called using "Multiple Node Instances (MNI)" to perform the transformation on each item in the data set.
- B. The transformation is applied with an expression rule that takes the data set as an input, and loops through the dataset using a looping function, such as foreach.
- C. An XOR gateway is added before the transformation node, to check for empty/null values.
- D. A loop is created within the process model that increments on each iteration, updating that particular row in the data set.
正解：B、C
解説：
Explanation
When building a process model that transforms a large data set, two things that should be ensured to include in the process model are an XOR gateway before the transformation node, to check for empty/null values, and a transformation applied with an expression rule that takes the data set as an input, and loops through the dataset using a looping function, such as foreach. These things can help to improve the performance and reliability of the process model. The XOR gateway can prevent unnecessary processing of empty or null data sets, which can save time and resources. The expression rule can perform the transformation in one transaction, instead of using multiple nodes or subprocesses, which can reduce the memory footprint and the database load of the process model. Therefore, the correct answers are B and D.
References:
* [XOR Gateway]
* [Expression Rules]
* [foreach() Function]
質問 # 37
Which review format is the most efficient way to coach team members and improve code quality? (Choose the best answer.)
- A. Automated Code Scanning
- B. Peer Dev Review
- C. Retrospectives
- D. User Acceptance Testing
正解：B
質問 # 38
You are presenting data through data visualization.
Match the chart types to the data they are best suited to represent. Each answer 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.
正解：
解説：
Explanation
質問 # 39
Your table contains several indexes.
Which two statements regarding indexes are correct? (Choose two.)
- A. Indexes decrease he performance of Read operations.
- B. Indexes decrease the performance of Write operations.
- C. Indexes increase the performance of Read operations.
- D. Indexes increase the performance of Write operations.
正解：B、C
解説：
Explanation
An index is a data structure that allows for faster retrieval of data from a table based on one or more columns.
Indexes increase the performance of read operations, such as select queries, by reducing the number of records that need to be scanned. However, indexes decrease the performance of write operations, such as insert, update, and delete queries, by requiring additional work to maintain the index structure and ensure its consistency with the table data. Therefore, indexes should be used judiciously and only on columns that are frequently used in queries and have high selectivity (i.e., low number of duplicate values).
質問 # 40
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