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  1. Home
  2. MuleSoft Certification
  3. MCPA-Level-1 Exam
  4. MuleSoft.MCPA-Level-1.v2025-06-21.q156 Dumps
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Question 76

An application updates an inventory running only one process at any given time to keep the inventory consistent. This process takes 200 milliseconds (.2 seconds) to execute; therefore, the scalability threshold of the application is five requests per second.
What is the impact on the application if horizontal scaling is applied, thereby increasing the number of Mule workers?

Correct Answer: A
Given that the application is designed to handle only one process at a time to maintain data consistency, here' s why horizontal scaling won't increase the processing limit:
* Single-Process Constraint:
* The application limits to processing one transaction at a time due to its design for consistency, meaning horizontal scaling (adding more workers) does not increase processing speed beyond this limit.
* Execution Time:
* Since each request takes 200 ms, five requests per second is the maximum processing threshold.
Increasing the number of workers does not bypass this single-process limitation.
* Explanation of Correct Answer (A):
* The scalability remains at five requests per second, as this constraint is intrinsic to the application' s design.
* Explanation of Incorrect Options:
* Option B suggests a change in execution time, which horizontal scaling does not affect.
* Option C assumes doubling the throughput, which isn't possible due to the single-threaded nature of the application.
* Option D suggests horizontal scaling cannot apply, which is incorrect; however, scaling does not increase throughput in this context.
ReferencesFor more on understanding scaling and concurrency in Mule applications, see MuleSoft's documentation on application performance and scaling limitations.
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Question 77

A Mule application exposes an HTTPS endpoint and is deployed to the CloudHub Shared Worker Cloud. All traffic to that Mule application must stay inside the AWS VPC.
To what TCP port do API invocations to that Mule application need to be sent?

Correct Answer: C
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Question 78

A code-centric API documentation environment should allow API consumers to investigate and execute API client source code that demonstrates invoking one or more APIs as part of representative scenarios.
What is the most effective way to provide this type of code-centric API documentation environment using Anypoint Platform?

Correct Answer: D
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Question 79

The asset version 2.0.0 of the Order API is successfully published in Exchange and configured in API Manager with the Autodiscovery API ID correctly linked to the API implementation, A new GET method is added to the existing API specification, and after updates, the asset version of the Order API is 2.0.1, What happens to the Autodiscovery API ID when the new asset version is updated in API Manager?

Correct Answer: C
* Understanding API Autodiscovery in MuleSoft:
* API Autodiscovery links an API implementation in Anypoint Platform with its configuration in API Manager. This is controlled by the API ID which is set in the API Autodiscovery element in the Mule application.
* The API ID remains consistent across minor updates to the API asset version in Exchange (e.g., from 2.0.0 to 2.0.1) as long as it is the same API.
* Effect of Asset Version Update on API Autodiscovery:
* When the asset version is updated (e.g., from 2.0.0 to 2.0.1), the API ID remains the same.
Therefore, no changes are needed in the Autodiscovery configuration within the Mule application. The Autodiscovery will continue to link the API implementation to the latest version in API Manager.
* Evaluating the Options:
* Option A: Incorrect, as the API ID does not automatically change with minor asset version updates.
* Option B: Incorrect, as the API ID remains the same, so no update is needed in the API implementation.
* Option C (Correct Answer): The API ID does not change, so no changes are necessary in the API implementation for the new asset version.
* Option D: Incorrect, as there is no need to update the API implementation in the Autodiscovery global element for minor version changes.
* Conclusion:
* Option C is the correct answer, as the API ID remains unchanged with minor version updates, and no changes are needed in the API Autodiscovery configuration.
Refer to MuleSoft documentation on API Autodiscovery and version management for more details.
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Question 80

An enterprise is embarking on the API-led digital transformation journey, and the central IT team has started to define System APIs. Currently there is no Enterprise Data Model being defined within the enterprise, and the definition of a clean Bounded Context Data Model requires too much effort.
According to MuleSoft's recommended guidelines, how should the System API data model be defined?

Correct Answer: B
When defining data models for System APIs without an established Enterprise Data Model, MuleSoft recommends mirroring the back-end systems' data types to achieve quick and effective integration without adding complexity. This approach has several benefits:
* Alignment with Backend Systems:
* Mirroring data types ensures consistency with backend data sources, which simplifies integration, reduces mapping requirements, and minimizes potential data transformation issues.
* Flexibility for Future Enhancements:
* By retaining close alignment with backend data structures, System APIs can evolve to support an Enterprise Data Model in the future without immediate restructuring.
* Explanation of Incorrect Options:
* Option A (exposing misspellings) is not recommended as System APIs should still ensure a professional and coherent interface.
* Option C (custom naming) complicates the API structure without adding immediate value in the absence of a clear data model.
* Option D (exposing all fields) is unnecessary and can reduce performance and add complexity.
ReferencesRefer to MuleSoft best practices for data modeling in System APIs for additional information on mirroring backend systems.
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