MuleSoft Certified Developer-Level 1 (Mule 4) Practice Exam

MuleSoft Certified Developer-Level 1 (Mule 4) Practice Exam

The MuleSoft Certified Developer - Level 1 (Mule 4) certification validates your proficiency in building and managing basic APIs and integrations using Mule 4. This globally recognized credential demonstrates your ability to design, develop, test, deploy, and manage integrations within the MuleSoft Anypoint Platform, empowering you to contribute effectively to API-led connectivity initiatives.

Who should take this Exam?

This certification caters to individuals seeking to:

• Launch their career in MuleSoft development: Build a strong foundation in Mule 4 and gain industry recognition.
• Advance their IT career: Enhance their existing skills and knowledge of API-led integration with MuleSoft.
• Become a valuable asset: Demonstrate their ability to work on basic Mule 4 projects with guidance and supervision.
• Prepare for further certifications: This certification forms the foundation for pursuing advanced MuleSoft certifications.

Roles and Responsibilities:

A MuleSoft Certified Developer - Level 1 should be able to:

• Design and develop basic Mule applications: Utilize Mule components, flows, and connectors to implement integrations.
• Implement API connectivity: Create and consume APIs using MuleSoft API Manager.
• Test and debug integrations: Ensure the functionality and performance of Mule applications.
• Package and deploy applications: Prepare and deploy Mule applications to the Anypoint Platform.
• Manage basic security: Implement basic security measures within Mule applications.
• Understand core Mule concepts: Grasp essential concepts like data mapping, error handling, and exception management.

Exam Details 

• Format: 60 multiple-choice questions
• Time Limit: 90 minutes
• Cost: Varies based on location and testing provider
• Languages: English and other languages depending on location
• Passing Score: 500 (out of 600)

Course Outline

The MuleSoft Certified Developer-Level 1 (Mule 4) Exam covers the following topcis - 

Explaining application network basics

• Explaining MuleSoft’s proposal for closing the IT delivery gap.
• Describing the role and characteristics of the “modern API.”
• Describing the purpose and roles of a Center for Enablement (C4E).
• Defining and describe the benefits of API-led connectivity and application networks.
• Defining and correctly use the terms API, API implementation, API interface, API consumer, and API invocation.
• Describing the basics of the HTTP protocol and the characteristics of requests and responses.
• Describing the capabilities and high-level components of Anypoint Platform for the API lifecycle.

Designing and consuming APIs

• Describing the lifecycle of the “modern API.”
• Using RAML to define API resources, nested resources, and methods.
• Identifying when and how to define query parameters vs URI parameters.
• Using RAML to define API parameters, requests, and responses.
• Using RAML to define reusable data types and format-independent examples.
• Reading a RAML spec and formulate RESTful requests with query parameters and/or headers as appropriate.

Accessing and modifying Mule events

• Describing the Mule event data structure.
• Usinge transformers to set event payloads, attributes, and variables.
• Writing DataWeave expressions to access and modify event payloads, attributes, and variables.
• Enriching Mule events using target parameters.

Enrich Data with Target Parameters

• Structuring Mule applications
• Parameterise an application using property placeholders.
• Defining and reuse global configurations in an application.
• Breaking an application into multiple flows using private flows, subflows, and the Flow Reference component.
• Specifying what data (payload, attributes, variables) is persisted between flows when a Flow Reference is used.
• Specifying what data (payload, attributes, variables) is persisted between flows when a Mule event crosses a connection boundary.
• Specifying what data (payload, attributes, variables) exists in a flow before and after a call in the middle of a flow to an external resource.

Building API implementation interfaces

• Manually create a RESTful interface for a Mule application.
• Generating a REST Connector from a RAML specification.
• Describing the features and benefits of APIkit.
• Using APIkit to create implementation flows from a RAML file.
• Describing how requests are routed through flows generated by APIkit.

Routing events

• Using the Choice router to route events based on conditional logic.
• Using the Scatter-Gather router to multicast events.
• Validating  data using the Validation module.

Handling errors

• Describing the default error handling in a Mule application.
• Describing a custom global default error handler for an application and identify in what situations it will be used.
• Compare and contrast how the On Error Continue and On Error Propagate scopes work.
• Creating one or more error handlers for a flow.
• Using the Try scope to specify error handlers for one or more event processors.
• Describing the data structure of the Mule Error object.
• Map errors to custom application errors.

Transforming data with DataWeave

• Writing DataWeave scripts to convert JSON, XML, and Java data structures to different data structures and data types.
• Using DataWeave functions.
• Describing and use DataWeave variables, functions, and modules.
• Describing and use custom data types.
• Applying correct DataWeave syntax to coerce data types.
• Applying correct DataWeave syntax to format strings, numbers, and dates.
• Calling Mule flows from a DataWeave script.

Using Connectors

• Retrieving data from a Database using the Database connector.
• Creating parameterized SQL queries for the Database connector.
• Retrieve data from a REST service using HTTP Request or a REST Connector.
• Using a Web Service Consumer connector to consume SOAP web services.
• Using the Transform Message component to pass arguments to a SOAP web service.
• List, read, and write local files using the File connector.
• List, read, and write remote files using the FTP connector.
• Using the JMS connector to publish and listen for JMS messages.

Processing records

• List and compare and contrast the methods for processing individual records in a collection.
• Explaining how Mule events are processed by the For Each scope.
• Using the For Each scope to process records.
• Explain how Mule events are processed by the Batch Job scope.
• Using a Batch Job with Batch Steps and a Batch Aggregator to process records.
• Using the Scheduler component to trigger a flow.
• Using connector listeners to trigger flows.
• Describing the features, benefits, and process to use watermarking.
• Describing the features, benefits, and process to use automatic watermarking vs. manual watermarking.
• Using connectors with automatic watermarking capabilities.
• Persisting data between flow executions using the Object Store.

Debugging and troubleshooting Mule applications

• Using breakpoints to inspect a Mule event during runtime.
• Installing missing Maven dependencies.
• Read and decipher Mule log error messages.

Deploying and managing APIs and integrations

• Package Mule applications for deployment.
• Deploy applications to CloudHub.
• Use CloudHub properties to ensure deployment success.
• Create and deploy API proxies.
• Connect an API implementation to API Manager using autodiscovery.
• Use policies, including client ID enforcement, to secure an API.
• Create SLA tiers and apply SLA based policies.