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Salesforce Mule-Dev-301 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Secure Data at Rest and in Transit	20%	- Implement security best practices 1. Secure sensitive data in Mule applications 2. Implement secure property management 3. Expose APIs over HTTPS 4. Create and distribute certificates and keys 5. Implement TLS mutual authentication
Topic 2: Implement Monitorable Mule Applications	15%	- Implement monitoring and logging 1. Configure and evaluate application logs 2. Expose health check endpoints 3. Change log levels dynamically 4. Implement monitoring dashboards and alerts
Topic 3: Expose Production-Ready Anypoint Platform Managed APIs	13%	- Manage APIs with Anypoint Platform 1. Configure API policies 2. Implement HTTP callbacks 3. Implement server-side API caching 4. Request and manage API access 5. Implement API versioning
Topic 4: Implement Maintainable and Modular Mule Applications and Their Maven Builds	25%	- Implement modular Mule application structures 1. Execute MUnit tests with Maven 2. Optimize Maven build configurations 3. Create custom API rules 4. Implement Maven-based automated deployments 5. Implement unit testing with MUnit framework
Topic 5: Implement Performant and Reliable Mule Applications	27%	- Optimize reliability and performance 1. Implement performant API invocations 2. Validate assertions using validation modules 3. Implement asynchronous processing 4. Implement ObjectStore persistence 5. Build fault-tolerant message processing

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Salesforce Certified MuleSoft Developer II Sample Questions (Q58-Q63):

NEW QUESTION # 58
Refer to the exhibit.
What required changes can be made to give a partial successful response in case the United Airlines API returns with a timeout?

A. Add Flow Reference components inside a Try scope.
Set the payload to a default value'' insider the error handler using the ON Error Continue scope
B. Add a Scatter-gather component inside a Try scope.
Set the payload to a default value 'Error' inside the error handler using the On Error Propagate scope.
C. Add a Scatter-Gather component inside a Try scope.
Set the payload to a default value 'Error'' inside the error handler using the On Error Continue scope.
D. Add Flow Reference components inside a Try scope
Set the payload to a default value '' inside the error handler using the On Error Propagate scope

Answer: C

Explanation:
To give a partial successful response in case the United Airlines API returns with a timeout, the developer should add a Scatter-Gather component inside a Try scope, and set the payload to a default value 'Error' inside the error handler using the On Error Continue scope. A Scatter-Gather component allows sending multiple requests concurrently and aggregating the responses into an array. A Try scope allows handling errors that occur within it using an error handler. An On Error Continue scope allows continuing the flow execution after handling an error. Therefore, by using these components, the developer can send requests to both APIs in parallel, handle any timeout errors from United Airlines API, and return a partial response with a default value for that API. Reference: https://docs.mulesoft.com/mule-runtime/4.3/scatter-gather-concept https://docs.mulesoft.com/mule-runtime/4.3/try-scope-concept https://docs.mulesoft.com/mule-runtime/4.3/on-error-continue-concept

NEW QUESTION # 59
What is the MuleSoft recommended method to encrypt sensitive property data?

A. The encryption key should be different for each environment and the sensitive data should be the same for all environments
B. The encryption key and sensitive data should be different for each environment
C. The encryption key should be identical for all environments and the sensitive data should be different for each environment
D. The encryption key and sensitive data should be the same for all environments

Answer: B

Explanation:
Secure property management should isolate development, test, staging, and production environments rather than allowing secrets from one environment to provide access to another. MuleSoft's Secure Configuration Properties model supports this by using environment-specific property files-for example dev.secure.yaml, sandbox.secure.yaml, and prod.secure.yaml-and resolving the appropriate file through an environment property.
Sensitive values such as passwords, API credentials, and private service configuration should therefore be environment-specific. Production credentials should not normally be reused in development or testing. The encryption key used to protect those values should likewise be independently managed rather than shared broadly across security boundaries. This limits the impact if a non-production key or properties file is exposed.
The Secure Properties Tool encrypts the sensitive values using a supplied key, while the Mule runtime receives the corresponding decryption key separately at deployment/runtime. MuleSoft also emphasizes protecting that key rather than embedding it directly in application configuration.
Accordingly, the Developer II security model represented by this question expects both different sensitive property values and different encryption keys across environments.
Reference topics: Secure Configuration Properties; environment-specific secure files; encryption keys; secret isolation; deployment security.
Official documentation: https://docs.mulesoft.com/anypoint-code-builder/int-create-secure-configs

NEW QUESTION # 60
A developer deploys an API to CloudHub and applies an OAuth policy on API Manager. During testing, the API response is slow, so the developer reconfigures the API so that the out-of-the-box HTTP Caching policy is applied first, and the OAuth API policy is applied second.
What will happen when an HTTP request is received?

A. In case of a cache it, only the HTTP Caching policy is evaluating; then the cached response is returned to the caller
B. In case of a cache hit, both the OAuth and HTTP Caching policies are evaluated; then the cached response is returned to the caller
C. In case of a cache miss, only the HTTP Caching policy is evaluated; then the API retrieves the data from the API implementation, and the policy stores the data to be cached in Object Store
D. In case of a cache miss, both the OAuth and HTTP Caching policies are evaluated; then the API retrieves the data from the API implementation, and the policy does not store the data in Object Store

Answer: A

Explanation:
When an HTTP request is received and the HTTP Caching policy is applied first, it checks if there is a cached response for that request in Object Store. If there is a cache hit, meaning that a valid cached response exists, then only the HTTP Caching policy is evaluated and the cached response is returned to the caller without invoking the OAuth policy or the API implementation. If there is a cache miss, meaning that no valid cached response exists, then both the HTTP Caching policy and the OAuth policy are evaluated before invoking the API implementation. Reference: https://docs.mulesoft.com/api-manager/2.x/http-caching-policy#policy-ordering

NEW QUESTION # 61
When a client and server are exchanging messages during the mTLS handshake, what is being agreed on during the cipher suite exchange?

A. The public key format
B. A protocol
C. The TLS version
D. An encryption algorithm

Answer: D

Explanation:
A TLS cipher suite defines the cryptographic algorithms that the communicating parties use to protect the connection. During TLS negotiation, the client advertises cipher suites that it supports and the server selects a mutually supported suite according to the protocol version and its security configuration.
In TLS 1.2 and earlier, a cipher-suite name can identify several cryptographic components, including key- exchange/authentication mechanisms, the symmetric encryption algorithm, and integrity protection. TLS 1.3 expresses cipher suites differently, but the negotiated suite still determines the authenticated-encryption algorithm used to protect application traffic. MuleSoft's TLS documentation exposes cipher-suite configuration directly, including suites based on AES-GCM and ChaCha20-Poly1305.
The TLS protocol version is negotiated as part of the broader handshake but is conceptually distinct from choosing a cipher suite. Likewise, a public-key format is not what the cipher-suite exchange fundamentally selects, and "a protocol" is too general.
Among the provided choices, an encryption algorithm is therefore the technically correct description of what the cipher-suite negotiation establishes for protecting the session.
Reference topics: TLS handshake; cipher suites; symmetric encryption; AES-GCM; mTLS cryptographic negotiation.
Official documentation: https://docs.mulesoft.com/anypoint-security/cipher-suites

NEW QUESTION # 62
Which pattern should be used to invoke multiple HTTP APIs in parallel and roll back failed requests in sequence?

A. VM queues as a reliability pattern with error handlers to roll back any requests
B. Scatter-Gather as central Saga orchestrator for all API request with compensating actions for failing routes
C. A database as a transactional outbox and an Until Successful router to retry any requests
D. A Parallel for Each scope with each HTTP request wrapped in a Try scope

Answer: B

Explanation:
To invoke multiple HTTP APIs in parallel and roll back failed requests in sequence, the developer should use a Scatter-Gather router as a central Saga orchestrator for all API requests with compensating actions for failing routes. A Scatter-Gather router executes multiple routes concurrently and aggregates the results. A Saga orchestrator coordinates a series of actions across different services and handles failures by executing compensating actions. Therefore, using a Scatter-Gather router as a Saga orchestrator allows invoking multiple HTTP APIs in parallel and rolling back any failed requests in sequence. Reference: https://docs.mulesoft.com/mule-runtime/4.3/scatter-gather-concept https://docs.mulesoft.com/mule-runtime/4.3/saga

NEW QUESTION # 63
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