Refer to the exhibits.

The web client sends a POST request to the ACME Order API with an XML payload. An error is returned.
What should be changed in the request so that a success response code is returned to the web client?

• A.Set a request header with the name Content-Type to a value of applicatron/octet-stream
• B.Set a request header with the name Content-Type to a value of application/xml
• C.Set a response header with the name Content-Type to a value of applkation/xml
• D.Set a response header with the name Content-Type to a value of application/octet-stream

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What of the below is not a feature of API Notebooks?

• A.API documentation
• B.Creates a client for an API
• C.Creates a mock service for an API
• D.Perform authenticated live calls on a real server

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Refer to the exhibits. A web client sends a POST request to the HTTP Listener and the Validation component in the Try scope throws an error.
What response message is returned to the web client?

• A.''ERROR2"
• B.''ERROR2"
  
• C."ERROR1"
• D.Validation Error
• E.Validation Error
• F."END"
• G."END"
• H."ERROR1"

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What MuleSoft API-led connectivity layer is intended to expose part of a backend database without business logic?

• A.Data layer
• B.Process layer
• C.Experience layer
• D.System layer

Correct Answer: D

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.

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Refer to the exhibits. The Set Payload transformer in the addltem child flow uses DataWeave to create an order object.
What is the correct DataWeave code for the Set Payload transformer in the createOrder flow to use the addltem child flow to add a router call with the price of 100 to the order?

• A.addltem( { payload: { price: "100", item: "router", itemType: "cable" > } )
• B.lookup( "addltern", { price: "100", item: "router", itemType: "cable" } )
• C.addltem( { price: "100", item: "router", itemType: "cable" } )
• D.lookup( "addltem", { payload: { price: "100", item: "router", itemType: "cable" } > )

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