Mulesoft MuleSoft Certified Architect MCIA-LEVEL-1-MAINTENANCE Questions & Answers

• Question 11:

  What is an example of data confidentiality?

  A. Signing a file digitally and sending it using a file transfer mechanism

  B. Encrypting a file containing personally identifiable information (PV)

  C. Providing a server's private key to a client for secure decryption of data during a two- way SSL handshake

  D. De-masking a person's Social Security number while inserting it into a database

  Correct Answer: B

• Question 12:

  Insurance organization is planning to deploy Mule application in MuleSoft Hosted runtime plane. As a part of requirement , application should be scalable . highly available. It also has regulatory requirement which demands logs to be retained for at least 2 years. As an Integration Architect what step you will recommend in order to achieve this?

  A. It is not possible to store logs for 2 years in CloudHub deployment. External log management system is required.

  B. When deploying an application to CloudHub , logs retention period should be selected as 2 years

  C. When deploying an application to CloudHub, worker size should be sufficient to store 2 years data

  D. Logging strategy should be configured accordingly in log4j file deployed with the application.

  Correct Answer: A

  Correct answer is It is not possible to store logs for 2 years in CloudHub deployment. External log management system is required. CloudHub has a specific log retention policy, as described in the documentation: the platform stores logs of up to 100 MB per app and per worker or for up to 30 days, whichever limit is hit first. Once this limit has been reached, the oldest log information is deleted in chunks and is irretrievably lost. The recommended approach is to persist your logs to a external logging system of your choice (such as Splunk, for instance) using a log appender. Please note that this solution results in the logs no longer being stored on our platform, so any support cases you lodge will require for you to provide the appropriate logs for review and case resolution

• Question 13:

  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.

  Correct Answer: C

  Correct answer is Use a Batch job scope to bulk insert records into the database

  * Batch Job is most efficient way to manage millions of records. A few points to note here are as follows : Reliability: If you want reliabilty while processing the records, i.e should the processing survive a runtime crash or other unhappy scenarios, and when restarted process all the remaining records, if yes then go for batch as it uses persistent queues. Error Handling: In Parallel for each an error in a particular route will stop processing the remaining records in that route and in such case you'd need to handle it using on error continue, batch process does not stop during such error instead you can have a step for failures and have a dedicated handling in it. Memory footprint: Since question said that there are millions of records to process, parallel for each will aggregate all the processed records at the end and can possibly cause Out Of Memory. Batch job instead provides a BatchResult in the on complete phase where you can get the count of failures and success. For huge file processing if order is not a concern definitely go ahead with Batch Job

• Question 14:

  An organization has deployed both Mule and non-Mule API implementations to integrate its customer and order management systems. All the APIs are available to REST clients on the public internet.

  The organization wants to monitor these APIs by running health checks: for example, to determine if an API can properly accept and process requests. The organization does not have subscriptions to any external monitoring tools and also

  does not want to extend its IT footprint.

  What Anypoint Platform feature provides the most idiomatic (used for its intended purpose) way to monitor the availability of both the Mule and the non-Mule API implementations?

  A. API Functional Monitoring

  B. Runtime Manager

  C. API Manager

  D. Anypoint Visualizer

  Correct Answer: D

  Reference: https://docs.mulesoft.com/visualizer/

• Question 15:

  Refer to the exhibit.

  

  This Mule application is deployed to multiple Cloudhub workers with persistent queue enabled. The retrievefile flow event source reads a CSV file from a remote SFTP server and then publishes each record in the CSV file to a VM queue. The

  processCustomerRecords flow's VM Listner receives messages from the same VM queue and then processes each message separately.

  How are messages routed to the cloudhub workers as messages are received by the VM Listener?

  A. Each message is routed to ONE of the Cloudhub workers in a DETERMINSTIC round robin fashion thereby EXACTLY BALANCING messages among the cloudhub workers

  B. Each messages routes to ONE of the available Clouhub workers in a NON- DETERMINSTIC non round-robin fashion thereby APPROXIMATELY BALANCING messages among the cloudhub workers

  C. Each message is routed to the SAME Cloudhub worker that retrieved the file, thereby BINDING ALL messages to ONLY that ONE Cloudhub worker

  D. Each message is duplicated to ALL of the Cloudhub workers, thereby SHARING EACH message with ALL the Cloudhub workers.

  Correct Answer: B

• Question 16:

  A system administrator needs to determine when permissions were last changed for an Anypoint Platform user. Which Anypoint Platform component should the administrator use to obtain this information?

  A. Audit Logging

  B. Anypoint Monitoring

  C. Anypiont Studio

  D. Mule Stack Traces

  Correct Answer: A

• Question 17:

  An organization is not meeting its growth and innovation objectives because IT cannot deliver projects last enough to keep up with the pace of change required by the business. According to MuleSoft's IT delivery and operating model, which step should the organization lake to solve this problem?

  A. Modify IT governance and security controls so that line of business developers can have direct access to the organization's systems of record

  B. Switch from a design-first to a code-first approach for IT development

  C. Adopt a new approach that decouples core IT projects from the innovation that happens within each line of business

  D. Hire more |T developers, architects, and project managers to increase IT delivery

  Correct Answer: C

• Question 18:

  A Mule application is built to support a local transaction for a series of operations on a single database. The mule application has a Scatter-Gather scope that participates in the local transaction. What is the behavior of the Scatter-Gather when running within this local transaction?

  A. Execution of all routes within Scatter-Gather occurs in parallel Any error that occurs inside Scatter-Gather will result in a roll back of all the database operations

  B. Execution of all routes within Scatter-Gather occurs sequentially Any error that occurs inside Scatter-Gather will be handled by error handler and will not result in roll back

  C. Execution of all routes within Scatter-Gather occurs sequentially Any error that occurs inside Scatter-Gather will result in a roll back of all the database operations

  D. Execution of all routes within Scatter-Gather occurs in parallel Any error that occurs inside Scatter-Gather will be handled by error handler and will not result in roll back

  Correct Answer: A

• Question 19:

  As part of a growth strategy, a supplier signs a trading agreement with a large customer. The customer sends purchase orders to the supplier according to the ANSI X12 EDI standard, and the supplier creates the orders in its ERP system

  using the information in the EDI document.

  The agreement also requires that the supplier provide a new RESTful API to process request from the customer for current product inventory level from the supplier' s ERP system.

  Which two fundamental integration use cases does the supplier need to deliver to provide an end-to-end solution for this business scenario? (Choose two.)

  A. Synchronized data transfer

  B. Sharing data with external partners

  C. User interface integration

  D. Streaming data ingestion

  E. Data mashups

  Correct Answer: AB

• Question 20:

  Refer to the exhibit.

  

  A Mule application is being designed to be deployed to several CIoudHub workers. The Mule application's integration logic is to replicate changed Accounts from Satesforce to a backend system every 5 minutes.

  A watermark will be used to only retrieve those Satesforce Accounts that have been modified since the last time the integration logic ran.

  What is the most appropriate way to implement persistence for the watermark in order to support the required data replication integration logic?

  

  A. Persistent Anypoint MQ Queue

  B. Persistent Object Store

  C. Persistent Cache Scope

  D. Persistent VM Queue

  Correct Answer: B

  *

  An object store is a facility for storing objects in or across Mule applications. Mule uses object stores to persist data for eventual retrieval.

  *

  Mule provides two types of object stores:

  1) In-memory store

  stores objects in local Mule runtime memory. Objects are lost on shutdown of the Mule runtime.

  2) Persistent store

  Mule persists data when an object store is explicitly configured to be persistent.

  In a standalone Mule runtime, Mule creates a default persistent store in the file system. If you do not specify an object store, the default persistent object store is used.

  MuleSoft Reference: https://docs.mulesoft.com/mule-runtime/3.9/mule- object-stores