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MuleSoft Certified Developer Level 1 Exam Guide

Summary

A MuleSoft Certified Developer – Level 1 is equipped to handle fundamental tasks in Mule 4 projects under supervision and guidance. This certification demonstrates a developer’s ability to effectively design, build, test, debug, deploy, and manage simple APIs and integrations, transitioning smoothly between Anypoint Platform and Anypoint Studio. A certified individual should have the proficiency to:

  • Utilize the MuleSoft-hosted Anypoint Platform for managing the complete lifecycle of a basic API, encompassing stages from design and construction to deployment, administration, and governance.
  • Employ Anypoint Studio for crafting, testing, and troubleshooting straightforward integrations and API implementations.
  • Connect with various resources, such as databases, files, web services, SaaS applications, and JMS queues.
  • Execute elementary data transformations using DataWeave 2.0.
  • Manage the flow of events and effectively deal with errors.
  • Process batches of records efficiently.

Format

The format of the examination is as follows:

  • Type: The exam is structured as a multiple-choice test. It is conducted online, under proctored conditions, and is closed book.
  • Number of Questions: The exam consists of 60 questions.
  • Time Allotted: The duration of the exam is set at 120 minutes, equivalent to 2 hours.
  • Passing Criteria: To pass the exam, a score of at least 70% is required.
  • Language: The exam is administered in English.
  • Attempt Limits: Candidates may attempt the exam up to a maximum of 5 times. There is a compulsory waiting period of 24 hours between each attempt.

Cost

The cost details for the exam are as follows:

  • Initial Purchase: The exam is priced at $400, which includes one complimentary retake.
  • Discount on Additional Retakes: For attempts 3 to 5, each retake is offered at a 50% discount. These additional retakes do not include any free retake option.
  • Bonus Attempts with Course Completion: Completing either the Anypoint Platform Development: Fundamentals course or the Anypoint Platform Development: Mule 4 for Mule 3 Users course grants two attempts at the exam.

Validity

  • Expiration: The certification remains valid for two years from the date of passing the exam.
  • Extension of Certification: To prolong the validity of the certification beyond the two-year mark, one needs to take the MuleSoft Certified Developer – Level 1 MAINTENANCE exam.

Preparation

To optimally prepare for the exam, consider the following strategies and resources:

  1. ForceDigest: MuleSoft Certified Developer – Level 1 Practice Exam and Study Guide. These materials offer a thorough exploration of the exam content, providing an array of practice questions that effectively mimic the style and format of the actual exam, ensuring a well-rounded preparation.

  2. Instructor-Led Training: Enroll in the Anypoint Platform Development: Fundamentals course. This course, guided by experienced instructors, includes comprehensive lessons, practical Do-It-Yourself exercises, and a practice exam. These components are essential for gaining a deep understanding of the subject matter and for evaluating your readiness for the exam.

  3. Practical Application: Focus on applying the concepts learned in real-life project scenarios. This step is crucial as it helps in cementing the theoretical knowledge acquired through study and training. Being adept at applying these concepts in practical settings is key to not only passing the exam but also excelling in professional environments.

Topics

 

Explaining application network basics

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

 

Designing and consuming APIs

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

 

Accessing and modifying Mule events

  • Describe the Mule event data structure.
  • Use transformers to set event payloads, attributes, and variables.
  • Write DataWeave expressions to access and modify event payloads, attributes, and variables.
  • Enrich Mule events using target parameters.

 

Structuring Mule applications

  • Parameterize an application using property placeholders.
  • Define and reuse global configurations in an application.
  • Break an application into multiple flows using private flows, subflows, and the Flow Reference component.
  • Specify what data (payload, attributes, variables) is persisted between flows when a Flow Reference is used.
  • Specify what data (payload, attributes, variables) is persisted between flows when a Mule event crosses a connection boundary.
  • Specify 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.
  • Generate a REST Connector from a RAML specification.
  • Describe the features and benefits of APIkit.
  • Use APIkit to create implementation flows from a RAML file.
  • Describe how requests are routed through flows generated by APIkit.

 

Routing events

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

 

Handling errors

  • Describe the default error handling in a Mule application.
  • Define 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.
  • Create one or more error handlers for a flow.
  • Use the Try scope to specify error handlers for one or more event processors.
  • Describe the data structure of the Mule Error object.
  • Map errors to custom application errors.

 

Transforming data with DataWeave

  • Write DataWeave scripts to convert JSON, XML, and Java data structures to different data structures and data types.
  • Use DataWeave functions.
  • Define and use DataWeave variables, functions, and modules.
  • Define and use custom data types.
  • Apply correct DataWeave syntax to coerce data types.
  • Apply correct DataWeave syntax to format strings, numbers, and dates.
  • Call Mule flows from a DataWeave script.

 

Using Connectors

  • Retrieve data from a Database using the Database connector.
  • Create parameterized SQL queries for the Database connector.
  • Retrieve data from a REST service using HTTP Request or a REST Connector.
  • Use a Web Service Consumer connector to consume SOAP web services.
  • Use 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.
  • Use 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.
  • Explain how Mule events are processed by the For Each scope.
  • Use the For Each scope to process records.
  • Explain how Mule events are processed by the Batch Job scope.
  • Use a Batch Job with Batch Steps and a Batch Aggregator to process records.
  • Use the Scheduler component to trigger a flow.
  • Use connector listeners to trigger flows.
  • Describe the features, benefits, and process to use watermarking.
  • Describe the features, benefits, and process to use automatic watermarking vs. manual watermarking.
  • Use connectors with automatic watermarking capabilities.
  • Persist data between flow executions using the Object Store.

 

Debugging and troubleshooting Mule applications

  • Use breakpoints to inspect a Mule event during runtime.
  • Install 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.

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