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MuleSoft Certified Platform Architect - Level 1 Questions and Answers

Question 17

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?

Options:

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 the system API deployed to the DR environment

B.

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

C.

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

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 a copy of the process API deployed to the DR environment

Question 18

A System API is designed to retrieve data from a backend system that has scalability challenges. What API policy can best safeguard the backend system?

Options:

A.

IPwhitelist

B.

SLA-based rate limiting

C.

Auth 2 token enforcement

D.

Client ID enforcement

Question 19

What API policy would be LEAST LIKELY used when designing an Experience API that is intended to work with a consumer mobile phone or tablet application?

Options:

A.

OAuth 2.0 access token enforcement

B.

Client ID enforcement

C.

JSON threat protection

D.

IPwhitellst

Question 20

What is most likely NOT a characteristic of an integration test for a REST API implementation?

Options:

A.

The test needs all source and/or target systems configured and accessible

B.

The test runs immediately after the Mule application has been compiled and packaged

C.

The test is triggered by an external HTTP request

D.

The test prepares a known request payload and validates the response payload