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MuleSoft MCD-Level-2 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Exposing Production-Ready APIs | 25% | - Applying and managing API policies - API versioning and lifecycle management - API autodiscovery and proxy configuration - Deployment to CloudHub and customer-hosted runtimes |
| Topic 2: Security, Performance & DevOps | 25% | - DataWeave optimization and transformation efficiency - CI/CD pipelines and DevOps practices - Performance tuning and resource management - Authentication, authorization and TLS |
| Topic 3: Building Maintainable & Modular Applications | 25% | - Unit testing with MUnit - Modularization and reusability patterns - Maven project structure and dependency management - Application packaging and configuration |
| Topic 4: Monitoring, Logging & Error Handling | 25% | - Implementing health checks and custom logging - Error handling strategies and exception management - Using Anypoint Monitoring and dashboards - Secure property storage and data masking |
MuleSoft Certified Developer - Level 2 (Mule 4) Sample Questions:
1. A Mule API receives a JSON payload and updates the target system with the payload. The developer uses JSON schemas to ensure the data is valid.
How can the data be validation before posting to the target system?
A) Add the JSON module dependency and add the validate-schema operation in the flow, configured to reference the schema
B) Use a DataWeave 2.09 transform operation, and at the log of the DataWeave script, add:
%dw 2.0
Import.json-moduls
C) Apply the JSON Schema policy in API Manager and reference the correct schema in the policy configuration
D) Using the DataWeave if Else condition test the values of the payload against the examples included in the schema
2. A Mule application need to invoice an API hosted by an external system to initiate a process. The external API takes anywhere between one minute and 24 hours to compute its process.
Which implementation should be used to get response data from the external API after it completes processing?
A) Expose an HTTP callback API in Mule and register it with the external system
B) Use an HTTP Connector to invoke the API and wait for a response
C) Use an HTTP Connector inside Async scope to invoice the API and wait for a response
D) Use a Scheduler to check for a response every minute
3. Refer to the exhibit.
The flow name is ''implementation'' with code for the MUnit test case.
When the MUnit test case is executed, what is the expected result?
A) The test case passes
B) The test case fails with an assertion error
C) The test throws an error and does not start
D) The test case fails with an unexpected error type
4. Which pattern can a web API use to notify its client of state changes as soon as they occur?
A) Shared database trigger
B) ETL data load
C) HTTP Webhock
D) Schedule Event Publisher
5. 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?
A) 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.
B) 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.
C) In Until Successful configuration, set the retry count to 1 for error type HTTP: UNAUTHORIZED.
D) Configure retrying until a MULERETRY_EXHAUSTED error is raised or the API responds back with a successful response.
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: A | Question # 3 Answer: B | Question # 4 Answer: C | Question # 5 Answer: B |








