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

• Question 1:

  A finance giant is planning to migrate all its Mule applications to Runtime fabric (RTF). Currently all Mule applications are deployed cloud hub using automated CI/CD scripts.

  As an integration architect, which of the below step would you suggest to ensure that the applications from cloudhub are migrated properly to Runtime Fabric (RTF) with an assumption that organization is keen on keeping the same deployment strategy.

  A. No changes need to be made to POM.xml file and CI/CD script should be modified as per the RTF configurations

  B. runtimeFabric dependency should be added as a mule plug-in to POM.xml file and CI/CD script should be modified as per the RTF configurations

  C. runtimeFabric deployment should be added to POM.xml file in all the mule applications and CI/CD script should be modified as per the RTF configurations

  D. runtimeFabric profile should be added mule configuration files in the mule applications and CI/CD script should be modified as per the RTF configurations

  Correct Answer: C

• Question 2:

  According to MuleSoft, what is a major distinguishing characteristic of an application network in relation to the integration of systems, data, and devices?

  A. It uses a well-organized monolithic approach with standards

  B. It is built for change and self-service

  C. It leverages well-accepted internet standards like HTTP and JSON

  D. It uses CI/CD automation for real-time project delivery

  Correct Answer: B

• Question 3:

  An XA transaction Is being configured that involves a JMS connector listening for Incoming JMS messages. What is the meaning of the timeout attribute of the XA transaction, and what happens after the timeout expires?

  A. The time that is allowed to pass between committing the transaction and the completion of the Mule flow After the timeout, flow processing triggers an error

  B. The time that Is allowed to pass between receiving JMS messages on the same JMS connection After the timeout, a new JMS connection Is established

  C. The time that Is allowed to pass without the transaction being ended explicitly After the timeout, the transaction Is forcefully rolled-back

  D. The time that Is allowed to pass for state JMS consumer threads to be destroyed After the timeout, a new JMS consumer thread is created

  Correct Answer: C

  *

  Setting a transaction timeout for the Bitronix transaction manager Set the transaction timeout either In wrapper.conf In CloudHub in the Properties tab of the Mule application deployment The default is 60 secs. It is defined as mule.bitronix.transactiontimeout = 120

  *

  This property defines the timeout for each transaction created for this manager. If the transaction has not terminated before the timeout expires it will be automatically rolled back. -- Additional Info around Transaction Management: Bitronix is available as the XA transaction manager for Mule applications To use Bitronix, declare it as a global configuration element in the Mule application Each Mule runtime can have only one instance of a Bitronix transaction manager, which is shared by all Mule applications For customer-hosted deployments, define the XA transaction manager in a Mule domain Then share this global element among all Mule applications in the Mule runtime

  

• Question 4:

  Which type of communication is managed by a service mesh in a microservices architecture?

  A. Communication between microservices runtime administrators

  B. Communication between microservices developers

  C. Communication between microservices

  D. Communication between trading partner services

  Correct Answer: C

• Question 5:

  A mule application designed to fulfil two requirements

  1.

  Processing files are synchronously from an FTPS server to a back-end database using VM intermediary queues for load balancing VM events

  2.

  Processing a medium rate of records from a source to a target system using batch job scope

  Considering the processing reliability requirements for FTPS files, how should VM queues be configured for processing files as well as for the batch job scope if the application is deployed to Cloudhub workers?

  A. Use Cloud hub persistent queues for FTPS files processing There is no need to configure VM queues for the batch jobs scope as it uses by default the worker's disc for VM queueing

  B. Use Cloud hub persistent VM queue for FTPS file processing There is no need to configure VM queues for the batch jobs scope as it uses by default the worker's JVM memory for VM queueing

  C. Use Cloud hub persistent VM queues for FTPS file processing Disable VM queue for the batch job scope

  D. Use VM connector persistent queues for FTPS file processing Disable VM queue for the batch job scope

  Correct Answer: C

• Question 6:

  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

  Correct Answer: C

  *

  Mule Domain Project is ONLY available for customer-hosted Mule runtimes, but not for Anypoint Runtime Fabric

  *

  Mule domain project is available for Hybrid and Private Cloud (PCE). Rest all provide application isolation and can't support domain project. What is Mule Domain Project?

  *

  A Mule Domain Project is implemented to configure the resources that are shared among different projects. These resources can be used by all the projects associated with this domain. Mule applications can be associated with only one domain, but a domain can be associated with multiple projects. Shared resources allow multiple development teams to work in parallel using the same set of reusable connectors. Defining these connectors as shared resources at the domain level allows the team to: - Expose multiple services within the domain through the same port. - Share the connection to persistent storage. - Share services between apps through a well-defined interface. - Ensure consistency between apps upon any changes because the configuration is only set in one place.

  *

  Use domains Project to share the same host and port among multiple projects. You can declare the http connector within a domain project and associate the domain project with other projects. Doing this also allows to control thread settings, keystore configurations, time outs for all the requests made within multiple applications. You may think that one can also achieve this by duplicating the http connector configuration across all the applications. But, doing this may pose a nightmare if you have to make a change and redeploy all the applications.

  *

  If you use connector configuration in the domain and let all the applications use the new domain instead of a default domain, you will maintain only one copy of the http connector configuration. Any changes will require only the domain to the redeployed instead of all the applications. You can start using domains in only three steps: 1) Create a Mule Domain project 2) Create the global connector configurations which needs to be shared across the applications inside the Mule Domain project 3) Modify the value of domain in mule-deploy.properties file of the applications

  

• Question 7:

  A team would like to create a project skeleton that developers can use as a starting point when creating API Implementations with Anypoint Studio. This skeleton should help drive consistent use of best practices within the team.

  What type of Anypoint Exchange artifact(s) should be added to Anypoint Exchange to publish the project skeleton?

  A. A custom asset with the default API implementation

  B. A RAML archetype and reusable trait definitions to be reused across API implementations

  C. An example of an API implementation following best practices

  D. a Mule application template with the key components and minimal integration logic

  Correct Answer: D

  *

  Sharing Mule applications as templates is a great way to share your work with other people who are in your organization in Anypoint Platform. When they need to build a similar application they can create the mule application using the

  template project from Anypoint studio.

  *

  Anypoint Templates are designed to make it easier and faster to go from a blank canvas to a production application. They're bit for bit Mule applications requiring only Anypoint Studio to build and design, and are deployable both on-

  premises and in the cloud.

  *

  Anypoint Templates are based on five common data Integration patterns and can be customized and extended to fit your integration needs. So even if your use case involves different endpoints or connectors than those included in the

  template, they still offer a great starting point.

  Some of the best practices while creating the template project:

  -

  Define the common error handler as part of template project, either using pom dependency or mule config file

  -

  Define common logger/audit framework as part of the template project

  -

  Define the env specific properties and secure properties file as per the requirement

  -Define global.xml for global configuration

  -

  Define the config file for connector configuration like Http,Salesforce,File,FTP etc

  -

  Create separate folders to create DWL,Properties,SSL certificates etc

  -

  Add the dependency and configure the pom.xml as per the business need

  -Configure the mule-artifact.json as per the business need

• Question 8:

  An insurance company has an existing API which is currently used by customers. API is deployed to customer hosted Mule runtime cluster. The load balancer that is used to access any APIs on the mule cluster is only configured to point to applications hosted on the server at port 443.

  Mule application team of a company attempted to deploy a second API using port 443 but the application will not start and checking logs shows an error indicating the address is already in use.

  Which steps must the organization take to resolve this error and allow customers to access both the API's?

  A. Change the base path of the HTTP listener configuration in the second API to a different one from the first API

  B. Set HTTP listener configuration in both API's to allow for connections from multiple ports

  C. Move the HTTP listener configurations from the API's and package them in a mule domain project using port 443

  D. Set the HTTP listener of the second API to use different port than the one used in the first API

  Correct Answer: C

• Question 9:

  What aspect of logging is only possible for Mule applications deployed to customer-hosted Mule runtimes, but NOT for Mule applications deployed to CloudHub?

  A. To send Mule application log entries to Splunk

  B. To change tog4j2 tog levels in Anypoint Runtime Manager without having to restart the Mule application

  C. To log certain messages to a custom log category

  D. To directly reference one shared and customized log4j2.xml file from multiple Mule applications

  Correct Answer: D

  *

  Correct answer is To directly reference one shared and customized log4j2.xml file from multiple Mule applications. Key word to note in the answer is directly.

  *

  By default, CloudHub replaces a Mule application's log4j2.xml file with a CloudHub log4j2.xml file. This specifies the CloudHub appender to write logs to the CloudHub logging service.

  *

  You cannot modify CloudHub log4j2.xml file to add any custom appender. But there is a process in order to achieve this. You need to raise a request on support portal to disable CloudHub provided Mule application log4j2 file.

  *

  Once this is done , Mule application's log4j2.xml file is used which you can use to send/export application logs to other log4j2 appenders, such as a custom logging system MuleSoft does not own any responsibility for lost logging data due to misconfiguration of your own log4j appender if it happens by any chance.

  *

  One more difference between customer-hosted Mule runtimes and CloudHub deployed mule instance is that

  

  

  -

  CloudHub system log messages cannot be sent to external log management system without installing custom CH logging configuration through support

  -

  where as Customer-hosted runtime can send system and application log to external log management system MuleSoft Reference: https://docs.mulesoft.com/runtime-manager/viewing-log-data https://docs.mulesoft.com/runtime-manager/custom-log-appender

• Question 10:

  A MuteSoft developer must implement an API as a Mule application, run the application locally, and execute unit tests against the Running application.

  Which Anypoint Platform component can the developer use to full all of these requirements?

  A. API Manager

  B. API Designer

  C. Anypoint CLI

  D. Anypoint Studio

  Correct Answer: D