Salesforce Mule-Arch-201 Exam : Salesforce Certified MuleSoft Platform Architect

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

4 Production environment is running on a dedicated Virtual Private Cloud (VPC) on CloudHub 1,0, and the security team guidelines clearly state no traffic on HTTP.
Which two options support these security guidelines?
Choose 2 answers

• A. Configure the IP Blocklist policy to control access to a configured API endpoint from either a single IP address or a range of IP addresses.
• B. Remove the entry from the VPC firewall rule
  
• C. Configure the HTTPS protocol in HTTP listener in the Mule application
• D. Create a custom policy to apply to outgoing and incoming HTTP requests to control access to a configured API endpoint
• E. Add the entry in the VPC firewall rule.
  

A developer from the Central IT team has created an initial version of the RAML definition in Design Center for an OAuth 2.0-protected System API and published it to Exchange. Another developer from LoB IT discovered the System API in Exchange and would like to leverage it in the Process API.
What is the MuleSoft-recommended approach for Process API to invoke the System API?

• A. The Process API needs to import an CAuth 2.0 module from Exchange first and update it with OAuth 2.0 credentials before the System API can be invoked
• B. The Process APL uses the REST Connect Connector autogenerated in Exchange for the System API
• C. The Process API uses property YAML files to store the System API URLs and uses the HTTP Request Connector to invoke the Systerm API
• D. The Process API manually updates the Process API POM file to include the System API as a dependency

A system API has a guaranteed SLA of 100 ms per request. The system API is deployed to a primary environment as well as to a disaster recovery (DR) environment, with different DNS names in each environment. An upstream process API invokes the system API and the main goal of this process API is to respond to client requests in the least possible time. In what order should the system APIs be invoked, and what changes should be made in order to speed up the response time for requests from the process API?

• A. Invoke ONLY the system API deployed to the primary environment, and add timeout and retry logic to avoid intermittent failures
• B. In parallel, invoke the system API deployed to the primary environment and the system API deployed to the DR environment, and ONLY use the first response
• C. Invoke the system API deployed to the primary environment, and if it fails, invoke the system API deployed to the DR environment
• D. In parallel, invoke the system API deployed to the primary environment and the system API deployed to the DR environment using a scatter-gather configured with a timeout, and then merge the responses

A system API is deployed to a primary environment as well as to a disaster recovery (DR) environment, with different DNS names in each environment. A process API is a client to the system API and is being rate limited by the system API, with different limits in each of the environments. The system API's DR environment provides only 20% of the rate limiting offered by the primary environment. What is the best API fault-tolerant invocation strategy to reduce overall errors in the process API, given these conditions and constraints?

• A. Invoke the system API deployed to the primary environment; add timeout and retry logic to the process API to avoid intermittent failures; if it still fails, invoke a copy of the process API deployed to the DR environment
• B. In parallel, invoke the system API deployed to the primary environment and the system API deployed to the DR environment; add timeout and retry logic to the process API to avoid intermittent failures; add logic to the process API to combine the results
• C. Invoke the system API deployed to the primary environment; add retry logic to the process API to handle intermittent failures by invoking the system API deployed to the DR environment
• D. Invoke the system API deployed to the primary environment; add timeout and retry logic to the process API to avoid intermittent failures; if it still fails, invoke the system API deployed to the DR environment