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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Designing APIs | 8% | - Use REST API methods and resources - Define API specifications with RAML - Define parameters, responses and data types |
| Topic 2: Deploying and Managing Applications | 10% | - Explain deployment models - Deploy to CloudHub and on-premises - Monitor and manage applications |
| Topic 3: Data Transformation with DataWeave | 10% | - Write expressions and functions - Transform complex data structures - Handle different data formats |
| Topic 4: Structuring Mule Applications | 10% | - Manage error handling and scopes - Organize configurations and properties - Use flows, subflows and flow references |
| Topic 5: Testing and Debugging | 10% | - Use mocking and test doubles - Write unit tests with MUnit - Debug applications using Anypoint Studio |
| Topic 6: Security and Governance | 7% | - Manage access and authentication - Apply security policies - Enforce governance standards |
| Topic 7: Building API Implementations | 10% | - Use connectors to integrate systems - Implement routing and transformation logic - Implement APIs from specifications |
| Topic 8: Creating Application Networks | 7% | - Describe Anypoint Platform components - Identify application network concepts - Explain API-led connectivity principles |
| Topic 9: Accessing and Modifying Mule Events | 10% | - Enrich events using connectors - Access and modify payload, attributes and variables - Use DataWeave for transformation |
| Topic 10: Error Handling and Transactions | 8% | - Implement transaction management - Configure error handlers - Handle retries and dead-letter queues |
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問題 #80
What MuleSoft API-led connectivity layer is intended to expose part of a backend database without business logic?
答案：A
解題說明：
Correct answer is System layer
System APIs provide a means for insulating the data consumers from the complexity or changes to the underlying backend systems.
MuleSoft recommends three-layered approach to API-led connectivity, highlighting the three layers:
* System APIs
* Process APIs
* Experience APIs
System APIs are the core systems of record underlying core systems of record (e.g. ERPs, key customer and billing systems, databases, etc.). Process APIs allow you to define a common process which the organization can share, and these APIs perform specific functions, provide access to non-central data, and may be built by either Central IT or Line of Business IT. And finally, the Experience APIs are the means by which data can be reconfigured so that it is most easily consumed by its intended audience, all from a common data source.
The three-layered structure allows for a seamless flow of data from systems of record to new experiences, and allows for reusability of assets rather than point to point connections. This approach provides a distributed and tailored approach to architecture, greater flexibility through loose coupling, and deeper operational visibility into what is being built.
Diagram Description automatically generated
問題 #81
Refer to the exhibits.
What payload and variable are logged at the end of the main flow?
答案：A
解題說明：
Correctanswer is [[5, 10, 15, 20], 5]
Key thing to note here is that any changes made to payload in for each loop are not available outside for each scope where as variable value updated in for each loop is visible out side for each loop too.
In this example , sequence can be described as follows
1) Payload is set to the value [5, 10, 15, 20]
2) Variable is set to the value of 1
3) For each loop is executed four times and in each loop payload value is updated to append "Req" and variable is count is increased by 1
4) Once control comes out of for each , payload changes made within for each are not visible. Hence payload at this point of time is equal to payload available before entering for each loop which was [5, 10, 15, 20].
Similarly variable value updated in for each loop is also available outside hence variable value is 5 as it was updated in loop.
5) Hence correct answer is [[5, 10, 15, 20], 5]
For Each Scope
The For Each scope splits a payload into elements and processes them one by one through the components that you place in the scope. It is similar to a for-each/for loop code block in most programming languages and can process any collection, including lists and arrays. The collection can be any supported content type, such as application/json, application/java, or application/xml.
General considerations about the For Each scope:
By default, For Each tries to split the payload. If the payload is a simple Java collection, the For Each scope can split it without any configuration. The payload inside the For Each scope is each of the split elements.
Attributes within the original message are ignored because they are related to the entire message.
For Each does not modify the current payload. The output payload is the same as the input.
For non-Java collections, such as XML or JSON, use a DataWeave expression to split data. Use the Collection field for this purpose.
問題 #82
A flowcontains an HTTP Listener as the event source. What is the DataWeave expression to log the Content- Type header using a Logger component?
答案：D
解題說明：
Option 1 is the only correct choice due to two reasons. 1) Concatenation is always with ++ sign and not with
+ sign which makes option 2 and 3 wrong2) hearders can be accessed with attributes. headers and not with only headers which makes option 4 incorrect
問題 #83
What are the latest specification of RAML available?
答案：B
解題說明：
The current version of the RAML specification is 1.0
You can check RAML version in RAML definition by referring tofirst comment. See highlighted part in below image.
Graphical user interface, text, application, email Description automatically generated
問題 #84
Refer to the exhibits.
What payload and quantity are togged at the end of the main flow?
答案：B
問題 #85
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