
Summary
The MuleSoft Certified Developer – Level 1 MAINTENANCE exam is a short maintenance exam for the MuleSoft Certified Developer - Level 1 certification, and extends the certification validity for an additional two years from the date you pass the exam.
The MuleSoft Certified Developer – Level 1 MAINTENANCE exam validates that a MuleSoft Certified Developer – Level 1 has maintained the required knowledge and skills to be able to successfully work on basic Mule 4 projects with guidance and supervision, and can design, build, test and debug, deploy, and manage basic APIs and integrations. Certified candidates should be able to:
- Use MuleSoft-hosted Anypoint Platform to take a basic API through all the steps of its lifecycle: design, build, deploy, manage, and govern.
- Use Anypoint Studio to build, test, and debug basic Mule 4 integrations and API implementations.
- Use Mule 4 connectors to connect to a range of resources including databases, files, web services, SaaS applications, and JMS queues.
- Perform basic data transformations using DataWeave 2.
- Use Mule 4 event processors to control event flow, handle errors, and process batch records.
Get a datasheet for the exam here.
ノート:日本語版に関しては、こちらから内容をご確認ください。
Format
- Format: Multiple-choice, closed book, proctored, online
- Length: 25 questions
- Duration: 45 minutes
- Pass score: 70%
- Language: English
You can take the exam a maximum of 2 times, with a 24-hour wait between attempts. After an unsuccessful second attempt, you can only take the full MuleSoft Certified Developer – Level 1 exam.
Cost
If you have a current MuleSoft Certified Developer - Level 1 certification, you will be automatically enrolled in this maintenance exam 90 days before the date your current certification expires. This exam enrollment includes one free retake.
Validity
The certification expires two years from the date you pass the exam.
Preparation
You can best prepare for the exam by reviewing the topics below and making sure that you have been actively using them in Mule 4 projects. If you need a review or refresher, the following resources are available to help you prepare:
- Instructor-led training: Anypoint Platform Development: Fundamentals
- Recommended as the most effective and efficient method of preparation
- 5-day class
- Private, public, onsite, and online classes available
- Self-study training: Anypoint Platform Development: Fundamentals
- 60+ step-by-step exercises to teach you the basics
- All content available instantly for you to complete at your own pace
- Supported by the peer-to-peer MuleSoft training forum
- Do-it-yourself exercises
- 10+ DIY exercises to get experience with and apply the knowledge gained in class
- Starting code and solutions provided
- Can be completed in any order
- Practice exam
- Same format, length, and duration as the full certification exam
- Questions are the same style and degree of difficulty as the exam
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.
Resources
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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.
Resources
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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.
Resources
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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.
Resources
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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.
Resources
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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.
Resources
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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.
Resources
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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.
Resources
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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.
Resources
- DEV:DIY4 Exercise 6-1 and Walkthrough
- DEV:DIY4 all exercises
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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.
Resources
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