ARC730 Exam: Absolutely Free Online Practice

Question 1
- What is not true about Mule Domain Project?
  
  A : This allows Mule applications to share resources
  
  B : Expose multiple services within the Mule domain on the same port
  
  C : Only available Anypoint Runtime Fabric
  
  D : Send events (messages) to other Mule applications using VM queues
  
  Answer: C
Question 2
- An external web UI application currently accepts occasional HTTP requests from client web browsers to change (insert, update, or delete) inventory pricing information in an inventory system's database. Each inventory pricing change must be transformed and then synchronized with multiple customer experience systems in near real-time (in under 10 seconds). New customer experience systems are expected to be added in the future. The database is used heavily and limits the number of SELECT queries that can be made to the database to 10 requests per hour per user. What is the most scalable, idiomatic (used for its intended purpose), decoupled. reusable, and maintainable integration mechanism available to synchronize each inventory pricing change with the various customer experience systems in near real-time?
  
  A :
  Write a Mule application with a Database On Table Row event source configured for the inventory pricing database, with the watermark attribute set to an appropriate database column In the same now, use a Scatter-Gather to call each customer experience system-s REST API with transformed inventory-pricing records
  
  B :
  Add a trigger to the inventory-pricing database table so that for each change to the inventory pricing database, a stored procedure is called that makes a REST call to a Mule application Write the Mule application to publish each Mule event as a message to an Anypoint MQ exchange Write other Mule applications to subscribe to the Anypoint MQ exchange, transform each received message, and then update the Mule application-s corresponding customer experience system(s)
  
  C :
  Replace the external web UI application with a Mule application to accept HTTP requests from client web browsers In the same Mule application, use a Batch Job scope to test if the database request will succeed, aggregate pricing changes within a short time window, and then update both the inventory pricing database and each customer experience system using a Parallel For Each scope
  
  D :
  Write a Mule application with a Database On Table Row event source configured for the inventory pricing database, with the ID attribute set to an appropriate database column In the same flow, use a Batch Job scope to publish transformed Inventory-pricing records to an Anypoint MQ queue Write other Mule applications to subscribe to the Anypoint MQ queue, transform each received message, and then update the Mule application-s corresponding customer experience system(s)
  
  Answer: B
Question 3
- A Mule application is deployed to a cluster of two(2) cusomter-hosted Mule runtimes. Currently the node name Alice is the primary node and node named bob is the secondary node. The mule application has a flow that polls a directory on a file system for new files. The primary node Alice fails for an hour and then restarted. After the Alice node completely restarts, from what node are the files polled, and what node is now the primary node for the cluster?
  
  A :
  Files are polled from Alice node Alice is now the primary node
  
  B :
  Files are polled form Bob node Alice is now the primary node
  
  C :
  Files are polled from Alice node Bob is the now the primary node
  
  D :
  Files are polled form Bob node Bob is now the primary node
  
  Answer: D
Question 4
- A company is implementing a new Mule application that supports a set of critical functions driven by a rest API enabled, claims payment rules engine hosted on oracle ERP. As designed the mule application requires many data transformation operations as it performs its batch processing logic. The company wants to leverage and reuse as many of its existing java-based capabilities (classes, objects, data model etc.) as possible What approach should be considered when implementing required data mappings and transformations between Mule application and Oracle ERP in the new Mule application?
  
  A :
  Create a new metadata RAML classes in Mule from the appropriate Java objects and then perform transformations via Dataweave
  
  B : From the mule application, transform via theXSLT model
  
  C : Transform by calling any suitable Java class from Dataweave
  
  D :
  Invoke any of the appropriate Java methods directly, create metadata RAML classes and then perform required transformations via Dataweave
  
  Answer: C
Question 5
- A Mule application is being designed To receive nightly a CSV file containing millions of records from an external vendor over SFTP, The records from the file need to be validated, transformed. And then written to a database. Records can be inserted into the database in any order. In this use case, what combination of Mule components provides the most effective and performant way to write these records to the database?
  
  A : Use a Parallel for Each scope to Insert records one by one into the database
  
  B : Use a Scatter-Gather to bulk insert records into the database
  
  C : Use a Batch job scope to bulk insert records into the database.
  
  D : Use a DataWeave map operation and an Async scope to insert records one by one into the database.
  
  Answer: C

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