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今の多士済々な社会の中で、IT専門人士はとても人気がありますが、競争も大きいです。だからいろいろな方は試験を借って、自分の社会の地位を固めたいです。Mule-Dev-201認定試験はSalesforceの中に重要な認証試験の一つですが、JapancertにIT業界のエリートのグループがあって、彼達は自分の経験と専門知識を使ってSalesforce Mule-Dev-201「Salesforce Certified MuleSoft Developer」認証試験に参加する方に対して問題集を研究続けています。
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Transformation with DataWeave | 10% | - Transform complex data structures - Write expressions and functions - Handle different data formats |
| Topic 2: Structuring Mule Applications | 10% | - Organize configurations and properties - Manage error handling and scopes - Use flows, subflows and flow references |
| Topic 3: Designing APIs | 8% | - Use REST API methods and resources - Define API specifications with RAML - Define parameters, responses and data types |
| Topic 4: Testing and Debugging | 10% | - Use mocking and test doubles - Debug applications using Anypoint Studio - Write unit tests with MUnit |
| Topic 5: Accessing and Modifying Mule Events | 10% | - Access and modify payload, attributes and variables - Enrich events using connectors - Use DataWeave for transformation |
| Topic 6: Error Handling and Transactions | 8% | - Implement transaction management - Handle retries and dead-letter queues - Configure error handlers |
| Topic 7: Creating Application Networks | 7% | - Explain API-led connectivity principles - Describe Anypoint Platform components - Identify application network concepts |
| Topic 8: Deploying and Managing Applications | 10% | - Deploy to CloudHub and on-premises - Explain deployment models - Monitor and manage applications |
| Topic 9: Building API Implementations | 10% | - Implement routing and transformation logic - Implement APIs from specifications - Use connectors to integrate systems |
| Topic 10: Security and Governance | 7% | - Apply security policies - Enforce governance standards - Manage access and authentication |
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質問 # 183
What MuleSoft API-led connectivity layer is intended to expose part of a backend database without business logic?
正解：C
解説：
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
質問 # 184
Refer to the exhibit.
What should be changed to fix the 415 error?
正解：D
解説：
The HTTP 415 Unsupported Media Type client error response code indicates that the server refuses to accept the request because the payload format is in an unsupported format. The format problem might be due to the request's indicated Content-Type or Content-Encoding , or as a result of inspecting the data directly. In this case as per RAML specification data is expected in application/json and in request Content-Type is set as "text
/plain" which is incorrect. Hence solution is set the request Content-Type header to application/json
https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/415
質問 # 185
A company has an API to manage departments, with each department identified by a unique deptld. The API was built with RAML according to MuleSoft best practices.
What isvalid RAML to specify a method to update the details for a specific department?
正解：D
解説：
URI parameter is basically used to identify a specific resource or resources
* Here we want toupdate details about specific department, so question is asking 'How to use URI parameter' in RAML
* Correct answer is
/departments:
/{deptId}:
patch:
Reference:https://docs.mulesoft.com/design-center/design-common-problems-raml-10
質問 # 186
A flowcontains an HTTP Listener as the event source. What is the DataWeave expression to log the Content- Type header using a Logger component?
正解：B
解説：
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
質問 # 187
Refer to the exhibit.
The API needs to beupdated using the company-wide standard for the Plan data type. The Object data type has already been published in Anypoint Exchange with the global reference . ACME/DataTypes
/PlanDataType.raml.
What is a valid RAML specification that reuses the Plan data type?
正解：B
解説：
As can be seen in RAML, POST expects input in application/json format which eliminates two of the options as two options are in xml format.
Now out of the two remainingoptions, one has id field in request which is only mentioned for get response and not for POST request. Hence id field is not expected in POST request.
Hence correct answer is
{
"name": "GoerdiLa Forge",
"address": "1 Westland CA",
"customer_since":"2014-01-04",
"balance": "4829.29",
"bank_agend_id": "12556"
}
質問 # 188
......
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