Salesforce SALESFORCE-MULESOFT-DEVELOPER-II Online Practice Questions and Exam Preparation

Salesforce SALESFORCE-MULESOFT-DEVELOPER-II Online Questions & Answers

• Question 11:

  A developer has created the first version of an API designed for business partners to work commodity prices. What should developer do to allow more than one major version of the same API to be exposed by the implementation?

  A. In Design Center, open the RAML and modify each operation to include the major version number
  B. In Anypoint Studio, generate scaffolding from the RAML, and the modify the in the generated flows to include a parameter to replace the version number
  C. In Design Center, open the RAML and modify baseUn to include a variable that indicates the version number
  D. In Anypoint Studio, generate scaffolding from the RAML, and then modify the flow names generated by APIKit to include a variable with the major version number
  C. In Design Center, open the RAML and modify baseUn to include a variable that indicates the version number

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  Explanation/Reference:

  To allow more than one major version of the same API to be exposed by the implementation, the developer should modify the baseUri property in the RAML file to include a variable that indicates the version number. The baseUri property defines the base URL of the API and can include variables that are replaced with actual values when mocking or deploying the API. By using a variable for the version number, the developer can expose different versions of the API using different base URLs and avoid conflicts or confusion. https:// docs.mulesoft.com/api-designer/design-modifyraml-specs#baseuri https://docs.mulesoft.com/api-manager.x/api-versioning

• Question 12:

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

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  Explanation/Reference:

  To run a test locally without the policies applied, the developer should create a properties file specifically for local development and set the API instance ID to a value that is not used in API Manager. This way, the developer can use different configuration properties for different environments and avoid triggering API autodiscovery when running tests locally. API autodiscovery is a mechanism that associates an API implementation with its corresponding API specification and policies in API Manager based on its API instance ID. By setting this ID to a value that does not exist in API Manager, the developer can prevent API autodiscovery from finding and applying any policies to the local test. https://docs.mulesoft.com/api-manager.x/api-auto-discovery-newconcept#configuring-api-autodiscovery https://docs.mulesoft.com/mule-runtime.3/configuringproperties

• Question 13:

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

  A. HTTP Webhock
  B. Shared database trigger
  C. Schedule Event Publisher
  D. ETL data load
  A. HTTP Webhock

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  Explanation/Reference:

  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. https://docs.mulesoft.com/connectors/webhook/webhook-connector

• Question 14:

  In a Mule project, Flow-1 contains a flow-ref to Flow-2 depends on data from Flow-1 to execute successfully. Which action ensures the test suites and test cases written for Flow-1 and Flow-2 will execute successfully?

  A. Chain together the test suites and test cases for Flow-1 and Flow-2
  B. Use "Set Event to pass the input that is needed, and keep the test cases for Flow-1 and Flow-2 independent
  C. Use "Before Test Case'' To collect data from Flow-1 test cases before running Flow-2 test cases
  D. Use "After Test Case' to produce the data needed from Flow-1 test cases to pass to Flow-2 test cases
  B. Use "Set Event to pass the input that is needed, and keep the test cases for Flow-1 and Flow-2 independent

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  Explanation/Reference:

  To ensure the test suites and test cases written for Flow-1 and Flow-2 will execute successfully, the developer should use a Set Event processor to pass the input that is needed by Flow-2, and keep the test cases for Flow- 1 and Flow-2 independent. This way, the developer can isolate the testing of each flow and avoid coupling them together. https://docs.mulesoft.com/munit.3/munit-testflow

• Question 15:

  A new Mule project has been created in Anypoint Studio with the default settings. Which file inside the Mule project must be modified before using Maven to successfully deploy the application?

  A. Settings.xml
  B. Config.yaml
  C. Pom.xml
  D. Mule.artificact.json
  C. Pom.xml

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  Explanation/Reference:

  To use Maven to successfully deploy the application, the developer needs to modify the pom.xml file inside the Mule project. The pom.xml file contains the configuration and dependencies of the Mule application, as well as the deployment information such as the CloudHub region, environment, and worker size. The developer needs to specify these properties in the pom.xml file before using Maven to deploy the application. https:// docs.mulesoft.com/mule-runtime.3/mmpconcept# application-deployment-descriptor

• Question 16:

  A Mule application uses API autodiscovery to access and enforce policies for a RESTful implementation.

  A. Northing because flowRef is an optional attribute which can be passed runtime
  B. The name of the flow that has APlkit Console to receive all incoming RESTful operation requests.
  C. Any of the APIkit generate implement flows
  D. The name of the flow that has HTTP listener to receive all incoming RESTful operation requests
  D. The name of the flow that has HTTP listener to receive all incoming RESTful operation requests

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  Explanation/Reference:

  To use API autodiscovery to access and enforce policies for a RESTful implementation, flowRef must be set to the name of the flow that has HTTP listener to receive all incoming RESTful operation requests. This way, API autodiscovery can identify the API implementation and associate it with the corresponding API specification and policies in API Manager. The flow that has HTTP listener is usually the main flow that contains the APIKit Router. https://docs.mulesoft.com/apimanager/ 2.x/api-auto-discovery-new-concept#flowref

• Question 17:

  Which type of cache invalidation does the Cache scope support without having to write any additional code?

  A. Write-through invalidation
  B. White-behind invalidation
  C. Time to live
  D. Notification-based invalidation
  C. Time to live

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  Explanation/Reference:

  The Cache scope supports time to live (TTL) as a cache invalidation strategy without having to write any additional code. TTL specifies how long the cached response is valid before it expires and needs to be refreshed. The Cache scope also supports custom invalidation strategies using MEL or DataWeave expressions. https://docs.mulesoft.com/mule-runtime.3/cachescope# cache_invalidation

• Question 18:

  An organization uses CloudHub to deploy all of its applications. How can a common-global-handler flow be configured so that it can be reused across all of the organization's deployed applications?

  A. Create a Mule plugin project Create a common-global-error-handler flow inside the plugin project. Use this plugin as a dependency in all Mute applications. Import that configuration file in Mute applications.
  B. Create a common-global-error-handler flow in all Mule Applications Refer to it flow-ref wherever needed.
  C. Create a Mule Plugin project Create a common-global-error-handler flow inside the plugin project. Use this plugin as a dependency in all Mule applications
  D. Create a Mule daman project. Create a common-global-error-handler flow inside the domain project. Use this domain project as a dependency.
  C. Create a Mule Plugin project Create a common-global-error-handler flow inside the plugin project. Use this plugin as a dependency in all Mule applications

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  Explanation/Reference:

  To configure a common-global-handler flow that can be reused across all of the organization's deployed applications, the developer should create a Mule Plugin project, create a common-globalerror- handler flow inside the plugin project, and

  use this plugin as a dependency in all Mule applications. This way, the developer can import the common-global-error-handler flow in any application that needs it and avoid duplicating the error handling logic.

  Reference:

  https://docs.mulesoft.com/mule-runtime.3/error-handling#global-error-handler

• Question 19:

  Which properties are mandatory on the HTTP Connector configuration in order to use the OAuth 2.0 Authorization Code grant type for authentication?

  A. External callback URL, access token URL, client ID response access token
  B. Token URL, authorization URL, client ID, client secret local callback URL
  C. External callback URL, access token URL, client ID, response refresh token
  D. External callback URL, access token URL, local authorization URL, authorization URL, client ID, client secret
  D. External callback URL, access token URL, local authorization URL, authorization URL, client ID, client secret

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  Explanation/Reference:

  To use the OAuth 2.0 Authorization Code grant type for authentication, the HTTP Connector configuration requires the following properties: token URL, authorization URL, client ID, client secret, and local callback URL. The token URL is the endpoint of the authorization server that provides access tokens. The authorization URL is the endpoint of the authorization server that initiates the user consent flow. The client ID and client secret are the credentials of the Mule application registered with the authorization server. The local callback URL is the endpoint of the Mule application that receives the authorization code from the authorization server. Reference: https://docs.mulesoft.com/http-connector.6/http-authentication#oauth-2-0

• Question 20:

  A Mule application deployed to multiple Cloudhub 2.0 replicas needs to temporarily persist large files over 10MB between flow executions, and routinely needs to query whether the file data exists on separate executions. How can this be achieved?

  A. Store the contents of the file on separate storage, and store the key and location of the file Object using Object Store v2
  B. Use an in-memory Object Store
  C. Store the key and full contents of the file in an Object Store D. Store the key and full contents of the file, caching the filename and location between requests
  A. Store the contents of the file on separate storage, and store the key and location of the file Object using Object Store v2

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  Explanation/Reference:

  To temporarily persist large files over 10MB between flow executions, and routinely query whether the file data exists on separate executions, the developer should store the contents of the file on separate storage, and store the key and location of the file object using Object Store v2. This way, the developer can avoid storing large files in memory or exceeding the size limit of Object Store v2 (10MB per object). The developer can also use Object Store v2 operations to query, retrieve, or delete the file object by its key. https://docs.mulesoft.com/ object-store/osv2-faq#can-istore-files-in-object-store-v2