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MuleSoft MCD-Level-2 Exam Dumps


Exam Code: MCD-Level-2
Exam Name: MuleSoft Certified Developer - Level 2 (Mule 4)

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Last Updated: 16-Apr-2024
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MuleSoft MCD-Level-2 Exam Questions


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MuleSoft Certified Developer - Level 2 (Mule 4) Exams
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MCD-Level-2 Exam Sample Questions:



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?

 

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.

 

Create a common-global-error-handler flow in all Mule Applications Refer to it flow-ref wherever needed.

 

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

 

Create a Mule daman project.
Create a common-global-error-handler flow inside the domain project.
Use this domain project as a dependency.


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


Explanation:
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-global-error-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. 

References:
https://docs.mulesoft.com/mule-runtime/4.3/error-handling#global-error-handler




A Mule application deployed to a standardalone Mule runtime uses VM queues to publish messages to be consumed asynchronously by another flow. In the case of a system failure, what will happen to in-flight messages in the VM queues that have been consumed?

 

For nay type of queue, the message will be processed after the system comes online

 

For persistent queues, the message will be processed after the system comes online

 

For transient queues, the message will be processed after the system comes online

 

For any type of queue, the message will be lost


For persistent queues, the message will be processed after the system comes online


Explanation:
In case of a system failure, in-flight messages in persistent VM queues that have been consumed will be processed after the system comes online. This is because persistent VM queues store messages on disk and guarantee delivery even if there is a system crash or restart. Therefore, any in-flight messages that have been consumed but not processed will be recovered from disk and processed when the system is back online.

References:
https://docs.mulesoft.com/mule-runtime/4.3/vm-connector#persistent-queues




Which statement is true when using XML SDK for creating custom message processors?

 

Properties are fields defined by an end user of the XML SDK component and serve as a global configuration for the entire Mule project in which they are used

 

An XML SDK provides both inbound and outbound operations

 

Operations can be reused in recursive calls

 

All operations are public


All operations are public


Explanation:
When using XML SDK for creating custom message processors, all operations are public by default and can be used by any Mule application that imports them. There is no way to make an operation private or protected in XML SDK.

References: https://docs.mulesoft.com/mule-sdk/1.1/xml-sdk#operations




A Mule implementation uses a HTTP Request within an Unit Successful scope to connect to an API. How should a permanent error response like HTTP:UNAUTHORIZED be handle inside Until Successful to reduce latency?

 

Configure retrying until a MULERETRY_EXHAUSTED error is raised or the API responds back with a successful response.

 

In Until Successful configuration, set the retry count to 1 for error type HTTP: UNAUTHORIZED.

 

Put the HTTP Request inside a try scope in Unit Successful.
In the error handler, use On Error Continue to catch permanent errors like HTTP UNAUTHORIZED.

 

Put the HTTP Request inside a try scope in Unit Successful.
In the error handler, use On Error Propagate to catch permanent errors like HTTP UNAUTHORIZED.


Put the HTTP Request inside a try scope in Unit Successful.
In the error handler, use On Error Continue to catch permanent errors like HTTP UNAUTHORIZED.


Explanation:
To handle a permanent error response like HTTP:UNAUTHORIZED inside Until Successful, the developer should put the HTTP Request inside a try scope in Unit Successful, and use On Error Continue to catch permanent errors like HTTP UNAUTHORIZED in the error handler. This way, the developer can avoid retrying requests that will always fail due to a permanent error, and reduce latency. On Error Continue allows the flow to continue processing after handling the error.

References:
https://docs.mulesoft.com/mule-runtime/4.3/until-successful-scope
https://docs.mulesoft.com/mule-runtime/4.3/on-error-continue-concept




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

 

Write-through invalidation

 

White-behind invalidation

 

Time to live

 

Notification-based invalidation


Time to live


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.

References: https://docs.mulesoft.com/mule-runtime/4.3/cache-scope#cache_invalidation


How to Pass MuleSoft MCD-Level-2 Exam?

Questions People Ask About MCD-Level-2 Exam

MCD-Level-1, the MuleSoft Certified Developer - Level 1 (Mule 4), is designed for developers at the entry level, focusing on the basics of application development with MuleSoft's Anypoint Platform. In contrast, MCD-Level-2, the MuleSoft Certified Developer - Level 2 (Mule 4), is an advanced exam. It delves deeper into complex integration solutions, including APIs and Anypoint Platform’s advanced features.

MCD-Level-2 exam, focusing on advanced MuleSoft development, tests a range of key skills and concepts. It includes designing and building complex integrations using Mule 4, working with Anypoint Studio, and understanding MuleSoft's API-led connectivity approach. Candidates are assessed on their ability to create custom connectors, implement efficient error handling strategies, and utilize DataWeave for complex data transformations.

While having the MCD-Level-1 certification is strongly recommended by MuleSoft, it is not a mandatory prerequisite for taking the MCD-Level-2 exam. However, the MCD-Level-2 assumes a deeper understanding of MuleSoft concepts, which are usually acquired through hands-on experience or completing the MCD-Level-1 path.

MCD-Level-2 exam assumes a solid grasp of complex MuleSoft development. You should have hands-on experience building real-world integrations, including proficiency in error handling, transformations, advanced connector usage, and designing for scalability and maintainability.

MuleSoft offers several official training courses specifically tailored for MCD-Level-2 exam preparation:

  • MuleSoft U Development Advanced (Mule 4): A deeper dive for experienced developers going for the MCD-Level-2 certification.
  • Instructor-led Options: For those who prefer structured learning environments with support from an expert.

Achieving the MCD-Level-2 certification often leads to higher salaries for MuleSoft professionals. This advanced-level MuleSoft certification demonstrates a deep understanding and expertise in MuleSoft’s Anypoint Platform, making certified individuals highly valuable in the industry.

MCD-Level-2 stands out with its focus on the MuleSoft Anypoint Platform. It proves not just general API and integration concepts, but expertise in MuleSoft-specific design patterns, tools, and best practices.

While not the primary exam focus, the MCD-Level-2 could require familiarity with common MuleSoft connectors like database, file, or SaaS connectors. It's more about knowing how to effectively choose and configure the right connectors for various real-world integration scenarios, rather than memorizing every single connector in existence.