Question No. 1

Refer to the exhibit.

The flow name is ''implementation'' with code for the MUnit test case.

When the MUnit test case is executed, what is the expected result?

AThe test case fails with an assertion error

BThe test throws an error and does not start

CThe test case fails with an unexpected error type

DThe test case passes

Show Answer

Correct Answer: A

Based on the code snippet and MUnit test case below, when the MUnit test case is executed, the expected result is that the test case fails with an assertion error. This is because the assert-equals processor compares two values for equality, and fails if they are not equal. In this case, the expected value is 'Hello World', but the actual value returned by the implementation flow is 'Hello Mule'. Therefore, the assertion fails and an error is thrown. Reference: https://docs.mulesoft.com/munit/2.3/assert-equals-processor

Question No. 2

Which pattern can a web API use to notify its client of state changes as soon as they occur?

AHTTP Webhock

BShared database trigger

CSchedule Event Publisher

DETL data load

Show Answer

Correct Answer: A

A web API can use HTTP Webhook to notify its client of state changes as soon as they occur. A webhook is an HTTP callback that allows an API to send real-time notifications to another system or application when an event happens. The client registers a URL with the API where it wants to receive notifications, and then the API sends an HTTP request to that URL with information about the event. Reference: https://docs.mulesoft.com/connectors/webhook/webhook-connector

Question No. 3

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?

AConfigure retrying until a MULERETRY_EXHAUSTED error is raised or the API responds back with a successful response.

BIn Until Successful configuration, set the retry count to 1 for error type HTTP: UNAUTHORIZED.

CPut 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.

DPut 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.

Show Answer

Correct Answer: C

To handle a permanent error response like HTTP:UNAUTHORIZED inside Until Successful, the developer should put the HTTP Request inside a try scope in Unit Successful, and use On Error Continue to catch permanent errors like HTTP UNAUTHORIZED in the error handler. This way, the developer can avoid retrying requests that will always fail due to a permanent error, and reduce latency. On Error Continue allows the flow to continue processing after handling the error. Reference: https://docs.mulesoft.com/mule-runtime/4.3/until-successful-scope https://docs.mulesoft.com/mule-runtime/4.3/on-error-continue-concept

Question No. 4

The HTTP Request operation raises an HTTP CONNECTIVITY error.

Which HTTP status code and body are returned to the web client?