A REST API is being designed to implement a Mule application.
What standard interface definition language can be used to define REST APIs?
A.
Web Service Definition Language(WSDL)
B.
OpenAPI Specification (OAS)
C.
YAML
D.
AsyncAPI Specification
OpenAPI Specification (OAS)
An established communications company is beginning its API-led connectivity journey, The
company has been using a successful Enterprise Data Model for many years. The company has identified a self-service account management app as the first effort for APIled,
and it has identified the following APIs.
A. Customer SAPI
B. Customer Lookup PAPI
C. Mobile Account Management EAPI
D. Service SAPI
Explanation: In the API-led connectivity approach, APIs are categorized into Experience,
Process, and System layers:
Enterprise Data Model Scope:
Why Option C is Correct:
Explanation of Incorrect Options:
References:
For additional guidance, review MuleSoft's best practices on API-led
connectivity and data modeling.
Refer to the exhibit. An organization needs to enable access to their customer data from
both a mobile app and a web application, which each need access to common fields as
well as certain unique fields.
The data is available partially in a database and partially in a 3rd-party CRM system.
What APIs should be created to best fit these design requirements?
A.
Option A
B.
Option B
C.
Option C
D.
Option D
Option C
Explanation: Explanation
Correct Answer: Separate Experience APIs for the mobile and web app, but a common
Process API that invokes separate System APIs created for the database and CRM system
*****************************************
As per MuleSoft's API-led connectivity:
>> Experience APIs should be built as per each consumer needs and their experience.
>> Process APIs should contain all the orchestration logic to achieve the business
functionality.
>> System APIs should be built for each backend system to unlock their data.
Reference: https://blogs.mulesoft.com/dev/api-dev/what-is-api-led-connectivity
How are an API implementation, API client, and API consumer combined to invoke and process an API?
A.
The API consumer creates an API implementation, which receives API invocations from
an API such that they are processed for an API client
B.
The API client creates an API consumer, which receives API invocations from an API such that they are processed for an API implementation
C.
The ApI consumer creates an API client, which sends API invocations to an API such that they are processed by an API implementation
D.
The ApI client creates an API consumer, which sends API invocations to an API such that they are processed by an API implementation
The ApI consumer creates an API client, which sends API invocations to an API such that they are processed by an API implementation
Explanation:
Explanation
Correct Answer: The API consumer creates an API client, which sends API invocations to
an API such that they are processed by an API implementation
*****************************************
Terminology:
>> API Client - It is a piece of code or program the is written to invoke an API
>> API Consumer - An owner/entity who owns the API Client. API Consumers write API
clients.
>> API - The provider of the API functionality. Typically an API Instance on API Manager
where they are managed and operated.
>> API Implementation - The actual piece of code written by API provider where the
functionality of the API is implemented. Typically, these are Mule Applications running on
Runtime Manager.
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?
A.
443
B.
8081
C.
8091
D.
8082
8082
Explanation: Explanation
Correct Answer: 8082
*****************************************
>> 8091 and 8092 ports are to be used when keeping your HTTP and HTTPS app private
to the LOCAL VPC respectively.
>> Above TWO ports are not for Shared AWS VPC/ Shared Worker Cloud.
>> 8081 is to be used when exposing your HTTP endpoint app to the internet through
Shared LB
>> 8082 is to be used when exposing your HTTPS endpoint app to the internet through
Shared LB
So, API invocations should be sent to port 8082 when calling this HTTPS based app.
References:
https://docs.mulesoft.com/runtime-manager/cloudhub-networking-guide
https://help.mulesoft.com/s/article/Configure-Cloudhub-Application-to-Send-a-HTTPSRequest-
Directly-to-Another-Cloudhub-Application
https://help.mulesoft.com/s/question/0D52T00004mXXULSA4/multiple-http-listerners-oncloudhub-
one-with-port-9090
An organization is implementing a Quote of the Day API that caches today's quote.
What scenario can use the GoudHub Object Store via the Object Store connector to persist
the cache's state?
A.
When there are three CloudHub deployments of the API implementation to three
separate CloudHub regions that must share the cache state
B.
When there are two CloudHub deployments of the API implementation by two Anypoint
Platform business groups to the same CloudHub region that must share the cache state
C.
When there is one deployment of the API implementation to CloudHub and anottV
deployment to a customer-hosted Mule runtime that must share the cache state
D.
When there is one CloudHub deployment of the API implementation to three CloudHub
workers that must share the cache state
When there is one CloudHub deployment of the API implementation to three CloudHub
workers that must share the cache state
Explanation: Explanation
Correct Answer: When there is one CloudHub deployment of the API implementation to
three CloudHub workers that must share the cache state.
*****************************************
Key details in the scenario:
>> Use the CloudHub Object Store via the Object Store connector
Considering above details:
>> CloudHub Object Stores have one-to-one relationship with CloudHub Mule Applications.
>> We CANNOT use an application's CloudHub Object Store to be shared among multiple
Mule applications running in different Regions or Business Groups or Customer-hosted
Mule Runtimes by using Object Store connector.
>> If it is really necessary and very badly needed, then Anypoint Platform supports a way
by allowing access to CloudHub Object Store of another application using Object Store
REST API. But NOT using Object Store connector.
So, the only scenario where we can use the CloudHub Object Store via the Object Store
connector to persist the cache’s state is when there is one CloudHub deployment of the
API implementation to multiple CloudHub workers that must share the cache state
The responses to some HTTP requests can be cached depending on the HTTP verb used
in the request. According to the HTTP specification, for what HTTP verbs is this safe to do?
A.
PUT, POST, DELETE
B.
GET, HEAD, POST
C.
GET, PUT, OPTIONS
D.
GET, OPTIONS, HEAD
GET, OPTIONS, HEAD
What is a key performance indicator (KPI) that measures the success of a typical C4E that is immediately apparent in responses from the Anypoint Platform APIs?
A.
The number of production outage incidents reported in the last 24 hours
B.
The number of API implementations that have a publicly accessible HTTP endpoint and are being managed by Anypoint Platform
C.
The fraction of API implementations deployed manually relative to those deployed using a CI/CD tool
D.
The number of API specifications in RAML or OAS format published to Anypoint
Exchange
The number of API specifications in RAML or OAS format published to Anypoint
Exchange
Explanation: Explanation
Correct Answer: The number of API specifications in RAML or OAS format published to
Anypoint Exchange
*****************************************
>> The success of C4E always depends on their contribution to the number of reusable
assets that they have helped to build and publish to Anypoint Exchange.
>> It is NOT due to any factors w.r.t # of outages, Manual vs CI/CD deployments or
Publicly accessible HTTP endpoints
>> Anypoint Platform APIs helps us to quickly run and get the number of published
RAML/OAS assets to Anypoint Exchange. This clearly depicts how successful a C4E team
is based on number of returned assets in the response.
Reference: https://help.mulesoft.com/s/question/0D52T00004mXSTUSA4/how-should-acompany-
measure-c4e-success
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