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| Section | Weight | Objectives |
|---|---|---|
| Secure Data at Rest and in Transit | 20% | - Implement security policies - Manage keys and certificates - Manage secure environment properties - Expose and invoke APIs over HTTPS |
| Implement Maintainable and Modular Mule Applications and Maven Builds | 25% | - Implement automated deployment - Execute tests with Maven - Build custom policies and processors - Create reusable libraries - Modularize applications and builds |
| Implement Performant and Reliable Mule Applications | 27% | - Handle HTTP API invocations and errors - Implement reliable messaging patterns - Validate messages and payloads - Use ObjectStore for persistence - Optimize performance and throughput |
| Implement Monitorable Mule Applications | 15% | - Monitor applications and runtimes - Implement message correlation - Expose health check endpoints - Implement logging and log management |
| Design and Implement API-led Connectivity | 13% | - Implement server-side caching - Implement API autodiscovery - Implement HTTP callbacks/webhooks |
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NEW QUESTION # 34
Refer to the exhibits.
The
flow is invoking a target API. The API's protocol is HTTPS. The TLS configuration in the HTTP Request Configuration global element is set to None. A web client submits a request to http://localhost:8081/vehicles.
If the certificate of the target API is signed by a certificate authority (CA), what is true about the HTTP Request operation when the flow executes?
Exhibit:
Answer: A
Explanation:
The HTTP Request connector is operating as a TLS client when it connects to the target HTTPS API. During the TLS handshake, the server presents its certificate chain. The client must be able to establish a chain of trust from that certificate to a trusted certificate authority.
When no custom Mule truststore is configured, Mule relies on the default Java/JRE truststore. MuleSoft explicitly states that if a tls:trust-store is not specified, Mule uses Java's default truststore, which normally contains certificates for major public certificate authorities.
Therefore, the target API connection succeeds when the issuing CA can be validated through that JRE truststore, assuming the remainder of the TLS negotiation is valid. A keystore serves a different purpose: it normally contains a private key and certificate used to establish the local party's own identity. It is not the default repository used to establish trust in remote HTTPS servers.
The connection also does not automatically trust every CA. Certificate validation still occurs unless validation is explicitly disabled.
Therefore, B correctly describes Mule's behavior when the HTTP Request configuration has no custom TLS truststore configured.
Reference topics: HTTP Request Connector; TLS client validation; Java default truststore; CA certificate chains; keystore versus truststore.
Official documentation: https://docs.mulesoft.com/mule-runtime/4.4/tls-configuration
NEW QUESTION # 35
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: A
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 # 36
A healthcare portal needs to validate the token that it sends to a Mule API. The developer plans to implement a custom policy using the HTTP Policy Transform Extension to match the token received in the header from the healthcare portal.
Which files does the developer need to create in order to package the custom policy?
Answer: B
Explanation:
For the Mule 4 custom-policy development model represented by this question, the policy's runtime behavior is implemented in an XML template, while the policy's configurable parameters and metadata are described in a YAML configuration file.
The XML template uses Mule's XML configuration language and policy-specific elements such as http-policy:
proxy, http-policy:source, http-policy:operation, and http-policy:execute-next. In this scenario, the developer can place the header-token inspection and validation behavior in this implementation layer. The accompanying YAML file exposes configurable policy parameters to API Manager and provides the metadata needed for policy configuration.
MuleSoft's custom-policy development reference identifies an XML template and YAML file as core policy project artifacts; the complete project additionally contains its POM, Mule artifact descriptor, and any optional resources.
A ZIP file is not the source artifact pair used to define the policy. Similarly, a generic JSON properties file is not a replacement for the implementation template in this Mule 4 custom-policy model.
Thus, among the available combinations, the XML policy template together with the YAML configuration file is the required pair.
Reference topics: Mule Gateway custom policies; XML policy templates; YAML policy configuration; HTTP Policy Transform Extension.
Official documentation: https://docs.mulesoft.com/mule-gateway/policies-custom-mule-4-reference
NEW QUESTION # 37
Refer to the exhibit.
A developer generates the base scaffolding for an API in Anypoint Studio.
Which HTTP status code is returned while testing using the API Kit console if no values are entered in client- id and client-secret?
Exhibit:
Answer: D
Explanation:
The RAML trait shown in the exhibit declares client_id and client_secret as headers and applies that trait to the /customers resource. Because these headers form part of the API contract, APIkit Router validates the inbound request against the specification before routing it to the generated implementation flow.
If the required request structure is not honored, APIkit raises an APIKIT:BAD_REQUEST error. MuleSoft's APIkit error-handling reference maps APIKIT:BAD_REQUEST directly to HTTP 400, and APIkit scaffolding generates the corresponding error-handling logic with httpStatus set to 400.
A 403 response would normally represent a request that was understood but rejected because of authorization.
That is not what is happening here: the request fails API contract validation before successful routing because required request information is absent. A 500 indicates an internal server failure, which is also inappropriate for malformed client input.
Therefore, when the API Console submits the request without the required header values, the APIkit- generated implementation treats it as a bad request and returns HTTP 400.
Reference topics: APIkit Router validation; RAML traits; required headers; APIKIT:BAD_REQUEST; APIkit-generated error handling.
Official documentation: https://docs.mulesoft.com/apikit/latest/apikit-error-handling-reference
NEW QUESTION # 38
An order processing system is composed of multiple Mule application responsible for warehouse, sales and shipping. Each application communication using Anypoint MQ. Each message must be correlated against the original order ID for observability and tracing.
How should a developer propagate the order ID as the correlation ID across each message?
Answer: A
Explanation:
To propagate the order ID as the correlation ID across each message using Anypoint MQ, the developer should wrap all Anypoint MQ Publish operations within a With CorrelationID scope from the Tracing module, setting the correlation ID to the order ID. The With CorrelationID scope allows setting a custom correlation ID for any event that occurs within it. The Tracing module also enables distributed tracing across different Mule applications and services using Anypoint Monitoring. Reference: https://docs.mulesoft.com/tracing-module/1.0/tracing-module-reference#with-correlation-id-scope https://docs.mulesoft.com/tracing-module/1.0/tracing-module-concepts
NEW QUESTION # 39
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