Salesforce Certified MuleSoft Platform Architect Sample Questions:

1. An API has been updated in Anypoint Exchange by its API producer from version 3.1.1 to 3.2.0 following accepted semantic versioning practices and the changes have been communicated via the API's public portal.
The API endpoint does NOT change in the new version.
How should the developer of an API client respond to this change?

A) The API producer should be contacted to understand the change to existing functionality
B) The update should be identified as a project risk and full regression testing of the functionality that uses this API should be run
C) The API producer should be requested to run the old version in parallel with the new one
D) The API client code ONLY needs to be changed if it needs to take advantage of new features

2. What is a best practice when building System APIs?

A) Document the API using an easily consumable asset like a RAML definition
B) Model all API resources and methods to closely mimic the operations of the backend system
C) Build an Enterprise Data Model (Canonical Data Model) for each backend system and apply it to System APIs
D) Expose to API clients all technical details of the API implementation's interaction wifch the backend system

3. An Order API must be designed that contains significant amounts of integration logic and involves the invocation of the Product API.
The power relationship between Order API and Product API is one of "Customer/Supplier", because the Product API is used heavily throughout the organization and is developed by a dedicated development team located in the office of the CTO.
What strategy should be used to deal with the API data model of the Product API within the Order API?

A) Implement an anti-corruption layer in the Order API that transforms the Product API data model into internal data types of the Order API
B) Start an organization-wide data modeling initiative that will result in an Enterprise Data Model that will then be used in both the Product API and the Order API
C) Work with the API data types of the Product API directly when implementing the integration logic of the Order API such that the Order API uses the same (unchanged) data types as the Product API
D) Convince the development team of the Product API to adopt the API data model of the Order API such that the integration logic of the Order API can work with one consistent internal data model

4. A Platform Architect inherits a legacy monolithic SOAP-based web service that performs a number of tasks, including showing all policies belonging to a client. The service connects to two back-end systems - a life-insurance administration system and a general-insurance administration system - and then queries for insurance policy information within each system, aggregates the results, and presents a SOAP-based response to a user interface (UI).
The architect wants to break up the monolithic web service to follow API-led conventions.
Which part of the service should be put into the process layer?

A) Querying the data from the administration systems
B) Combining the insurance policy information from the administration systems
C) Authenticating and maintaining connections to each of the back-end administration systems
D) Presenting the SOAP-based response to the UI

5. An organization is deploying their new implementation of the OrderStatus System API to multiple workers in CloudHub. This API fronts the organization's on-premises Order Management System, which is accessed by the API implementation over an IPsec tunnel.
What type of error typically does NOT result in a service outage of the OrderStatus System API?

A) The AWS region goes offline with a major network failure to the relevant AWS data centers
B) The Order Management System is Inaccessible due to a network outage in the organization's on-premises data center
C) A CloudHub worker fails with an out-of-memory exception
D) API Manager has an extended outage during the initial deployment of the API implementation

Solutions: