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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Security and Governance | 7% | - Manage access and authentication - Enforce governance standards - Apply security policies |
| Topic 2: Deploying and Managing Applications | 10% | - Explain deployment models - Deploy to CloudHub and on-premises - Monitor and manage applications |
| Topic 3: Designing APIs | 8% | - Define parameters, responses and data types - Use REST API methods and resources - Define API specifications with RAML |
| Topic 4: Error Handling and Transactions | 8% | - Configure error handlers - Handle retries and dead-letter queues - Implement transaction management |
| Topic 5: Structuring Mule Applications | 10% | - Organize configurations and properties - Use flows, subflows and flow references - Manage error handling and scopes |
| Topic 6: Testing and Debugging | 10% | - Write unit tests with MUnit - Use mocking and test doubles - Debug applications using Anypoint Studio |
| Topic 7: Accessing and Modifying Mule Events | 10% | - Enrich events using connectors - Use DataWeave for transformation - Access and modify payload, attributes and variables |
| Topic 8: Building API Implementations | 10% | - Implement routing and transformation logic - Use connectors to integrate systems - Implement APIs from specifications |
| Topic 9: Creating Application Networks | 7% | - Explain API-led connectivity principles - Identify application network concepts - Describe Anypoint Platform components |
| Topic 10: Data Transformation with DataWeave | 10% | - Handle different data formats - Write expressions and functions - Transform complex data structures |
>> Mule-Dev-201 Fragenkatalog <<
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169. Frage
In an application network. If the implementation but not the interface of a productAPI changes, what needs to be done to the other APIs that consume the product API?
Antwort: A
Begründung:
Correct answer is Nothing needs to be changed in the other APIs or their associated applications This is the benefit of havingseparate interface layer. As there are no changes to interface , no changes are required on the API's which consumes this API in context
170. Frage
Refer to the exhibit.
What is a valid expression for the Choice router's when expression to route events to the documenticShipping flow?
Antwort: D
Begründung:
Choice Router
The Choice router dynamically routes messages through a flow according to a set of DataWeave expressions that evaluate message content. Each expression is associated with a different routingoption. The effect is to add conditional processing to a flow, similar to an if/then/else code block in most programming languages.
Only one of the routes in the Choice router executes, meaning that the first expression that evaluates to true triggers thatroute's execution and the others are not checked. If none of the expressions are true, then the default route executes.
Properties of <when>
PropertyDescription
Expression (expression)
Expression in DataWeave language to evaluate input.If the expressionevaluates to true, this routing option is used:
* <whenexpression="#[vars.language == 'Spanish']">
Mulesoft Doc Ref : https://docs.mulesoft.com/mule-runtime/4.3/choice-router-concept With respect to above information , Option 1 is the correct syntax as others are incorrect because of below reasons
* Single = is not the correct syntax to validate the condition. It should be ==
* If keyword is not required in when condition.
171. Frage
A flow needs to combine and return data from two different data sources. It contains a Database SELECT operation followed by an HTTP Request operation.
What is the method to capture both payloads so the payload from the second request does not overwrite that from the first?
Antwort: A
Begründung:
Correct answer is Save the payload from the Database SELECT operation to a variable Response from HTTP requestwill override the payload and hence response of database SELECT can be lost.
Best way to preserve is to assign payload of first operation to variable using TransformMessage.
172. Frage
What is the difference between a subflow and a sync flow?
Antwort: A
Begründung:
Correct answer is Subflow has no error handling implementation where as sync flow has.
Subflow
A subflow processes messages synchronously (relative to the flowthat triggered its execution) and always inherits both the processing strategy and exception strategy employed by the triggering flow. While a subflow is running, processing on the triggering flow pauses, then resumes only after the subflow completes its processing and hands the message back to the triggering flow.
Synchronous Flow
A synchronous flow, like a subflow, processes messages synchronously (relative to the flow that triggered its execution). While a synchronous flow is running, processing on the triggering flow pauses, then resumes only after the synchronous flow completes its processing and hands the message back to the triggering flow.
However, unlike a subflow, this type of flow does not inherit processing or exception strategies from the triggering flow.
This type of flow processes messages along a single thread, which is ideally suited to transactional processing
173. Frage
A function named newProdCode needs to be defined that accepts two input parameters, an integer value for itemID and a string value for productCategory, and returns a new product code.
What is the correct DataWeave code to define the newProdCode function?
Antwort: C
174. Frage
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