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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Implement Monitorable Mule Applications | 15% | - Monitor applications and runtimes - Expose health check endpoints - Implement logging and log management - Implement message correlation |
| Topic 2: Implement Maintainable and Modular Mule Applications and Maven Builds | 25% | - Modularize applications and builds - Build custom policies and processors - Implement automated deployment - Create reusable libraries - Execute tests with Maven |
| Topic 3: Design and Implement API-led Connectivity | 13% | - Implement server-side caching - Implement API autodiscovery - Implement HTTP callbacks/webhooks |
| Topic 4: Secure Data at Rest and in Transit | 20% | - Manage secure environment properties - Manage keys and certificates - Implement security policies - Expose and invoke APIs over HTTPS |
| Topic 5: Implement Performant and Reliable Mule Applications | 27% | - Use ObjectStore for persistence - Optimize performance and throughput - Validate messages and payloads - Implement reliable messaging patterns - Handle HTTP API invocations and errors |
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NEW QUESTION # 38
A developer has created the first version of an API designed for business partners to work commodity prices.
What should developer do to allow more than one major version of the same API to be exposed by the implementation?
Answer: B
Explanation:
To allow more than one major version of the same API to be exposed by the implementation, the developer should modify the baseUri property in the RAML file to include a variable that indicates the version number. The baseUri property defines the base URL of the API and can include variables that are replaced with actual values when mocking or deploying the API. By using a variable for the version number, the developer can expose different versions of the API using different base URLs and avoid conflicts or confusion. Reference: https://docs.mulesoft.com/api-designer/design-modify-raml-specs#baseuri https://docs.mulesoft.com/api-manager/2.x/api-versioning
NEW QUESTION # 39
Refer to the exhibits.
The flow name is "implementation" with code for the MUnit test case.
When the MUnit test case is executed, what is the expected result?
Exhibit:
Answer: B
Explanation:
The significant attribute in the MUnit definition is expectedErrorType="APP:CUSTOM_ERROR". The referenced implementation flow deliberately invokes raise-error with exactly the same error type: APP:
CUSTOM_ERROR.
MUnit supports expected-error testing specifically for negative scenarios. When expectedErrorType is configured, the test is considered successful when execution produces that expected Mule error. The raised error is therefore not treated as an unexpected test failure; it satisfies the test's declared expectation.
The apparently failing assertion-testing true against equalTo(false)-does not change the result in this scenario because normal execution does not reach the validation chain after the referenced flow raises the expected error. The expected error terminates the execution path being tested and satisfies the MUnit expectation.
If the implementation generated a different error type, option B would apply. If it generated no error when an error was expected, the test would also fail. Here, however, the flow explicitly raises the exact application- defined error specified by the test.
Reference topics: MUnit Test Structure; expectedErrorType; Error Testing; Raise Error Component.
Official documentation: https://docs.mulesoft.com/munit/3.6/munit-test-concept
NEW QUESTION # 40
Refer to the exhibit.
What required changes can be made to give a partial successful response in case the United Airlines API returns with a timeout?
Exhibit:
Answer: A
Explanation:
Scatter-Gather normally expects all routes to complete successfully before combining their results. If the United Airlines route times out and that error escapes the route, Scatter-Gather raises a MULE:
COMPOSITE_ROUTING error instead of continuing normally to the downstream Transform Message. That behavior prevents the required partial-success response.
The correct design is to handle failure inside the affected Scatter-Gather route. Each Flow Reference can be wrapped in a Try scope, with the timeout or relevant connector error handled using On Error Continue. The handler can replace the failed route's payload with a neutral/default value such as an empty string. The route is then considered successfully handled, allowing Scatter-Gather to consolidate the successful Delta response and the default United value and proceed to the concatenation step.
MuleSoft documents this exact Scatter-Gather behavior: when a route's Try scope successfully handles an error with on-error-continue, Scatter-Gather completes and passes the combined events onward. If on-error- propagate is used, the route remains failed and Scatter-Gather produces a composite-routing error.
Reference topics: Scatter-Gather Router; Try Scope; On Error Continue; partial results; MULE:
COMPOSITE_ROUTING.
Official documentation: https://docs.mulesoft.com/mule-runtime/4.3/scatter-gather-concept
NEW QUESTION # 41
Which command is used to convert a JKS keystore to PKCS12?
Answer: B
Explanation:
To convert a JKS keystore to PKCS12, the developer needs to use the keytool-importkeystore command with the following options: -srckeystore keystore.jks -srcstoretype JKS -destkeystore keystore.p12 -deststoretype PKCS12. This command imports all entries from a source JKS keystore (keystore.jks) into a destination PKCS12 keystore (keystore.p12). Reference: https://docs.oracle.com/en/java/javase/11/tools/keytool.html#GUID-5990A2E4-78E3-47B7-AE75-6D1826259549
NEW QUESTION # 42
A scatter-gather router is configured with four routes: Route A, B, C and D.
Route C fails.
Which expression allows access to the failing route so that it can be compensated?
Answer: B
Explanation:
When any route within Scatter-Gather fails, Mule raises a MULE:COMPOSITE_ROUTING error after the routes complete. The information associated with each route is retained in the error message payload. This payload contains separate collections for failures and results, indexed according to the route positions.
Routes are zero-indexed for this structure: Route A corresponds to index 0, Route B to index 1, Route C to index 2, and Route D to index 3. Because Route C failed, its failure information is therefore available from the failures structure at index 2.
Critically, this data belongs to the Mule error's errorMessage.payload; it is not simply the current event payload. Consequently, payload.failures[2] and payload[2] address the wrong structure. Likewise, error.
errorMessage.payload.results[2] refers to the successful-results collection; for a failed route, the relevant object is stored under failures.
MuleSoft's Scatter-Gather documentation demonstrates the same mechanism, accessing failed route information through expressions such as error.errorMessage.payload.failures['0'] and successful route output through the corresponding results collection.
Reference topics: Scatter-Gather Error Handling; MULE:COMPOSITE_ROUTING; Route Results and Failures; Compensation Logic.
Official documentation: https://docs.mulesoft.com/mule-runtime/4.6/scatter-gather-concept
NEW QUESTION # 43
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