Mulesoft MCPA-Level-1 Exam Questions

Option D

Explanation: Explanation
Correct Answer: XML over HTTP
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>> API-led connectivity and Application Networks urge to have the APIs on HTTP based
protocols for building most effective APIs and networks on top of them.
>> The HTTP based APIs allow the platform to apply various varities of policies to address
many NFRs
>> The HTTP based APIs also allow to implement many standard and effective
implementation patterns that adhere to HTTP based w3c rules

Explanation:
In the API-led connectivity approach, each layer (System, Process, and Experience) has a distinct purpose:

• System APIs: These APIs connect directly to backend systems to expose and unlock data in a standardized way.
• Process APIs: These are responsible for orchestrating and processing data across different systems, combining information where needed.
• Experience APIs: These are designed for specific user interfaces or applications, often transforming data formats to fit the needs of each consumer application.

• Process APIs are designed to combine data from multiple systems, which aligns with the function of aggregating policy information from both the life and general insurance systems. This aggregation logic would ideally reside in the Process layer, separating data retrieval from data orchestration.
• Moving this functionality to the Process layer enables reusability and modularity, as other Experience APIs or services could also leverage the combined policy data if needed.

• Option B (Presenting the SOAP-based response) would be managed by the Experience layer, as this layer adapts data formats for specific interfaces.
• Option C (Authenticating and maintaining backend connections) would typically be handled within the System layer, where backend integration and security handling occurs.
• Option D (Querying data) is the function of System APIs, which access the backend systems directly and expose the raw data without additional processing.

Explanation: Explanation
Correct Answer: It makes API Manager aware of API implementations and hence enables it
to enforce policies.
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>> API Autodiscovery is a mechanism that manages an API from API Manager by pairing
the deployed application to an API created on the platform.
>> API Management includes tracking, enforcing policies if you apply any, and reporting
API analytics.
>> Critical to the Autodiscovery process is identifying the API by providing the API name
and version.
References:
https://docs.mulesoft.com/api-manager/2.x/api-auto-discovery-new-concept
https://docs.mulesoft.com/api-manager/1.x/api-auto-discovery
https://docs.mulesoft.com/api-manager/2.x/api-auto-discovery-new-concept

Explanation:
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:

• Execution Time:
• Explanation of Correct Answer (A):
• Explanation of Incorrect Options:

GET, OPTIONS, HEAD

To invoke OAuth 2.0-protected APIs managed by Anypoint Platform, API clients must submit access tokens issued by that same Identity Provider

Explanation: https://www.folkstalk.com/2019/11/mulesoft-integration-and-platform.html
Explanation
Correct Answer: To invoke OAuth 2.0-protected APIs managed by Anypoint Platform, API
clients must submit access tokens issued by that same Identity Provider
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>> It is NOT necessary that single sign-on is required to sign in to Anypoint Platform
because we are using an external Identity Provider for Client Management
>> It is NOT necessary that all APIs managed by Anypoint Platform must be protected by
SAML 2.0 policies because we are using an external Identity Provider for Client
Management
>> Not TRUE that the application network must include System APIs that interact with the
Identity Provider because we are using an external Identity Provider for Client Management
Only TRUE statement in the given options is - "To invoke OAuth 2.0-protected APIs
managed by Anypoint Platform, API clients must submit access tokens issued by that same
Identity Provider"
References:
https://docs.mulesoft.com/api-manager/2.x/external-oauth-2.0-token-validation-policy
https://blogs.mulesoft.com/dev/api-dev/api-security-ways-to-authenticate-and-authorize/

A CloudHub worker fails with an out-of-memory exception

Explanation: Explanation
Correct Answer: A CloudHub worker fails with an out-of-memory exception.
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>> An AWS Region itself going down will definitely result in an outage as it does not matter
how many workers are assigned to the Mule App as all of those in that region will go down.
This is a complete downtime and outage.
>> Extended outage of API manager during initial deployment of API implementation will of
course cause issues in proper application startup itself as the API Autodiscovery might fail
or API policy templates and polices may not be downloaded to embed at the time of
applicaiton startup etc... there are many reasons that could cause issues.
>> A network outage onpremises would of course cause the Order Management System
not accessible and it does not matter how many workers are assigned to the app they all
will fail and cause outage for sure.
The only option that does NOT result in a service outage is if a cloudhub worker fails with
an out-of-memory exception. Even if a worker fails and goes down, there are still other
workers to handle the requests and keep the API UP and Running. So, this is the right
answer.