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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Design and Implement API-led Connectivity | 13% | - Implement API autodiscovery - Implement server-side caching - Implement HTTP callbacks/webhooks |
| Topic 2: Implement Maintainable and Modular Mule Applications and Maven Builds | 25% | - Create reusable libraries - Build custom policies and processors - Execute tests with Maven - Implement automated deployment - Modularize applications and builds |
| Topic 3: Secure Data at Rest and in Transit | 20% | - Manage secure environment properties - Expose and invoke APIs over HTTPS - Manage keys and certificates - Implement security policies |
| Topic 4: Implement Monitorable Mule Applications | 15% | - Monitor applications and runtimes - Expose health check endpoints - Implement logging and log management - Implement message correlation |
| Topic 5: Implement Performant and Reliable Mule Applications | 27% | - Validate messages and payloads - Use ObjectStore for persistence - Handle HTTP API invocations and errors - Implement reliable messaging patterns - Optimize performance and throughput |
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NEW QUESTION # 57
Mule application A is deployed to CloudHub and is using Object Store v2. Mute application B is also deployed to CloudHub.
Which approach can Mule application B use to remove values from Mule application A'S Object Store?
Answer: B
Explanation:
To remove values from Mule application A's Object Store v2, Mule application B can use Object Store v2 REST API. This API allows performing operations on Object Store v2 resources using HTTP methods, such as GET, POST, PUT, and DELETE. Mule application B can use the DELETE method to remove values from Mule application A's Object Store v2 by specifying the object store ID and the key of the value to delete. Reference: https://docs.mulesoft.com/object-store/osv2-apis
NEW QUESTION # 58
A Mule implementation uses a HTTP Request within an Unit Successful scope to connect to an API.
How should a permanent error response like HTTP:UNAUTHORIZED be handle inside Until Successful to reduce latency?
Answer: D
Explanation:
To handle a permanent error response like HTTP:UNAUTHORIZED inside Until Successful, the developer should put the HTTP Request inside a try scope in Unit Successful, and use On Error Continue to catch permanent errors like HTTP UNAUTHORIZED in the error handler. This way, the developer can avoid retrying requests that will always fail due to a permanent error, and reduce latency. On Error Continue allows the flow to continue processing after handling the error. Reference: https://docs.mulesoft.com/mule-runtime/4.3/until-successful-scope https://docs.mulesoft.com/mule-runtime/4.3/on-error-continue-concept
NEW QUESTION # 59
Refer to the exhibit.
A Mule Object Store is configured with an entry TTL of one second and an expiration interval of 30 seconds.
What is the result of the flow if processing between os:store and os:retrieve takes 10 seconds?
Exhibit:
Answer: D
Explanation:
The distinction between entry TTL and expiration interval is the key to this question. entryTtl="1" specifies that an Object Store entry becomes eligible for expiration after one second. However, expirationInterval="30" determines how frequently Mule's expiration process checks the Object Store and removes expired entries.
MuleSoft describes the expiration interval as the frequency at which the expiration thread runs. Therefore, expiration is not equivalent to immediate physical removal at precisely the TTL boundary.
The flow first sets the payload to originalPayload, then stores "testPayload" under the key testKey. Ten seconds subsequently elapse before the Retrieve operation executes. Although this exceeds the configured one-second TTL, only 10 seconds have elapsed since storage, while the expiration process is configured to run at 30-second intervals. The entry has therefore not yet been evicted when retrieval occurs.
Because testKey remains available, os:retrieve returns the stored value, testPayload. The configured default value nullPayload would be used only if the key were unavailable according to the Retrieve operation's behavior.
Reference topics: Object Store Connector; entry TTL; expiration interval; expiration thread; Store and Retrieve operations.
Official documentation: https://docs.mulesoft.com/object-store-connector/latest/object-store-connector- reference
NEW QUESTION # 60
Which statement is true when using XML SDK for creating custom message processors?
Answer: C
Explanation:
Option C is directly supported by the MuleSoft XML SDK documentation. MuleSoft defines an XML SDK property as a field supplied by an end user of the component that operates at the module configuration level.
Unlike an operation parameter, which applies to one operation invocation, properties configure the XML SDK component across the Mule project in which that configuration is used.
The other choices conflict with documented XML SDK behavior. XML SDK operations do not support recursive calls, so A is false. XML SDK provides outbound operations but does not provide inbound message sources such as schedulers, making B false.
Option D also requires correction. Current XML SDK versions support a visibility setting with values including PUBLIC and PRIVATE; the default is public, but operations are not universally required to remain public. MuleSoft's current XML SDK reference explicitly documents private operation visibility.
Therefore, C is the technically correct and directly documented statement. This is one question where the option selected in the supplied source should not be accepted without verification.
Reference topics: XML SDK Properties; Operations; module configuration; operation visibility; XML SDK limitations.
Official documentation: https://docs.mulesoft.com/mule-sdk/latest/xml-sdk Official documentation: https://docs.mulesoft.com/mule-sdk/latest/
NEW QUESTION # 61
When implementing a synchronous API where the event source is an HTTP Listener, a developer needs to return the same correlation ID back to the caller in the HTTP response header.
How can this be achieved?
Answer: C
Explanation:
Correlation IDs are part of Mule event processing and provide the primary mechanism for tracing an execution across application components. Mule first examines the source message for a correlation identifier.
For an HTTP Listener request, an incoming X-CORRELATION-ID or MULE_CORRELATION_ID header can establish the Mule event's correlation ID. If the source does not provide one, Mule generates a unique correlation ID for the event.
For the synchronous HTTP Listener scenario tested by the MuleSoft Developer II curriculum, the same correlation context is associated with the request-response execution, so no special API policy, scaffolding option, or Listener "CorrelationID" checkbox is required to satisfy the stated requirement.
Options B and C describe configuration controls that are not part of the normal HTTP Listener/APIkit scaffolding model. A custom correlation policy would only introduce unnecessary complexity where Mule's runtime correlation mechanism already handles the event correlation lifecycle.
The broader operational principle is important: correlation IDs should remain stable for the execution being traced so that request handling, logs, downstream processing, and the associated synchronous interaction can be related during production diagnostics.
Reference topics: Mule Event; Correlation ID; HTTP Listener; X-CORRELATION-ID; distributed tracing and observability.
Official documentation: https://docs.mulesoft.com/mule-runtime/latest/correlation-id
NEW QUESTION # 62
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