MuleSoft Certified Developer - Level 2 (Mule 4) : MCD-Level-2

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MuleSoft Certified Developer - Level 2 (Mule 4) 認定 MCD-Level-2 試験問題:

1. A developer deploys an API to CloudHub and applies an OAuth policy on API Manager. During testing, the API response is slow, so the developer reconfigures the API so that the out-of-the-box HTTP Caching policy is applied first, and the OAuth API policy is applied second.
What will happen when an HTTP request is received?

A) In case of a cache miss, both the OAuth and HTTP Caching policies are evaluated; then the API retrieves the data from the API implementation, and the policy does not store the data in Object Store
B) In case of a cache it, only the HTTP Caching policy is evaluating; then the cached response is returned to the caller
C) In case of a cache hit, both the OAuth and HTTP Caching policies are evaluated; then the cached response is returned to the caller
D) In case of a cache miss, only the HTTP Caching policy is evaluated; then the API retrieves the data from the API implementation, and the policy stores the data to be cached in Object Store

2. Refer to the exhibit.
What action must be performed to log all the errors raised by the VM Connector?

A) Add <AsyncLOgger name='orgroute.extensions vm' level=ERROR'I> inside the Logger tag
B) Configure <Logger level-'ERROR'/> inside the VM Connector configuration
C) Nothing, as error-level events are automatically logged
D) Add <AsyncLOgger name='orgroute.extensions vm' level=ERROR'/> inside the Appenders tag

3. Which pattern should be used to invoke multiple HTTP APIs in parallel and roll back failed requests in sequence?

A) VM queues as a reliability pattern with error handlers to roll back any requests
B) A database as a transactional outbox and an Until Successful router to retry any requests
C) Scatter-Gather as central Saga orchestrator for all API request with compensating actions for failing routes
D) A Parallel for Each scope with each HTTP request wrapped in a Try scope

4. An API has been developed and deployed to CloudHub Among the policies applied to this API is an allowlist of IP addresses. A developer wants to run a test in Anypoint Studio and does not want any policies applied because their workstation is not included in the allowlist.
What must the developer do in order to run this test locally without the policies applied?

A) Run the test as-s, with no changes because the Studio runtime will not attempt to connect to API Manager
B) Create a properties file specifically for local development and set the API instance ID to a value that is not used in API Manager
C) Pass in the runtime parameter ''-Danpow.platform.gatekeeper=disabled''
D) Deactivate the API in API Manager so the Autodiscovery element will not find the application when it runs in Studio

5. A Mule implementation uses a HTTP Request within an Unit Successful scope to connect to an API.
How should a permanent error response like HTTP:UNAUTHORIZED be handle inside Until Successful to reduce latency?

A) In Until Successful configuration, set the retry count to 1 for error type HTTP: UNAUTHORIZED.
B) Put the HTTP Request inside a try scope in Unit Successful.
In the error handler, use On Error Continue to catch permanent errors like HTTP UNAUTHORIZED.
C) Put the HTTP Request inside a try scope in Unit Successful.
In the error handler, use On Error Propagate to catch permanent errors like HTTP UNAUTHORIZED.
D) Configure retrying until a MULERETRY_EXHAUSTED error is raised or the API responds back with a successful response.

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