Question 1

A system API EmployeeSAPI is used to fetch employee's data from an underlying SQL database. The architect must design a caching strategy to query the database only when there is an update to the employees stable or else return a cached response in order to minimize the number of redundant transactions being handled by the database. What must the architect do to achieve the caching objective?

Options :

A : Use an On Table Row on employees table and call invalidate cache Use an object store caching strategy and expiration interval to empty

B : Use a Scheduler with a fixed frequency every hour triggering an invalidate cache flow Use an object store caching strategy and expiration interval to empty

C : Use a Scheduler with a fixed frequency every hour triggering an invalidate cache flow Use an object store caching strategy and set expiration interval to 1-hour

D : Use an on table rule on employees table call invalidate cache and said new employees data to cache Use an object store caching strategy and set expiration interval to 1-hour

Answer: A

Question 2

An external REST client periodically sends an array of records in a single POST request to a Mule application API endpoint. The Mule application must validate each record of the request against a JSON schema before sending it to a downstream system in the same order that it was received in the array Record processing will take place inside a router or scope that calls a child flow. The child flow has its own error handling defined. Any validation or communication failures should not prevent further processing of the remaining records. To best address these requirements what is the most idiomatic(used for it intended purpose) router or scope to used in the parent flow, and what type of error handler should be used in the child flow?

Options :

A : First Successful router in the parent flow On Error Continue error handler in the child flow

B : For Each scope in the parent flow On Error Continue error handler in the child flow

C : Parallel For Each scope in the parent flow On Error Propagate error handler in the child flow

D : Until Successful router in the parent flow On Error Propagate error handler in the child flow

Answer: B

Question 3

A REST API is being designed to implement a Mule application. What standard interface definition language can be used to define REST APIs?

Options :

A : Web Service Definition Language(WSDL)

B : OpenAPI Specification (OAS)

C : YAML

D : AsyncAPI Specification

Answer: B

Question 4

A Mule application uses the Database connector. What condition can the Mule application automatically adjust to or recover from without needing to restart or redeploy the Mule application?

Options :

A : One of the stored procedures being called by the Mule application has been renamed

B : The database server was unavailable for four hours due to a major outage but is now fully operational again

C : The credentials for accessing the database have been updated and the previous credentials are no longer valid

D : The database server has been updated and hence the database driver library/JAR needs a minor version upgrade

Answer: B

Question 5

An organization currently uses a multi-node Mule runtime deployment model within their datacenter, so each Mule runtime hosts several Mule applications. The organization is planning to transition to a deployment model based on Docker containers in a Kubernetes cluster. The organization has already created a standard Docker image containing a Mule runtime and all required dependencies (including a JVM), but excluding the Mule application itself. What is an expected outcome of this transition to container-based Mule application deployments?

Options :

A : Required redesign of Mule applications to follow microservice architecture principles

B : Required migration to the Docker and Kubernetes-based Anypoint Platform - Private Cloud Edition

C : Required change to the URL endpoints used by clients to send requests to the Mule applications

D : Guaranteed consistency of execution environments across all deployments of a Mule application

Answer: A

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