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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Secure Data at Rest and in Transit | 20% | - Expose and invoke APIs over HTTPS - Manage secure environment properties - Implement security policies - Manage keys and certificates |
| Topic 2: Implement Maintainable and Modular Mule Applications and Maven Builds | 25% | - Build custom policies and processors - Create reusable libraries - Implement automated deployment - Execute tests with Maven - Modularize applications and builds |
| Topic 3: Design and Implement API-led Connectivity | 13% | - Implement server-side caching - Implement HTTP callbacks/webhooks - Implement API autodiscovery |
| Topic 4: Implement Monitorable Mule Applications | 15% | - Implement message correlation - Expose health check endpoints - Implement logging and log management - Monitor applications and runtimes |
| Topic 5: Implement Performant and Reliable Mule Applications | 27% | - Validate messages and payloads - Use ObjectStore for persistence - Optimize performance and throughput - Implement reliable messaging patterns - Handle HTTP API invocations and errors |
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NEW QUESTION # 42
Which type of cache invalidation does the Cache scope support without having to write any additional code?
Answer: B
Explanation:
Mule's Cache scope is backed by a caching strategy, commonly using an Object Store. The caching strategy can directly configure expiration characteristics, including entry time to live (TTL). Once the TTL expires and the corresponding expiration processing occurs, cached entries are removed according to the configured Object Store policy without requiring application-specific invalidation logic.
MuleSoft's cache strategy documentation shows that the Object Store used by a caching strategy can define values such as entryTtl, expirationInterval, and maximum entries. A Cache component can then reference that strategy and automatically use those expiration settings.
Write-through and write-behind describe cache/database synchronization strategies in which cache updates are coordinated with writes to an underlying persistent data source. Mule's standard Cache scope does not automatically implement those patterns as an invalidation mode. Notification-based invalidation would similarly require external notification logic or explicit Mule processing to identify and invalidate affected keys.
TTL requires no such custom invalidation workflow. The developer establishes the lifetime when configuring the caching Object Store, after which Mule manages expiration automatically.
Therefore, Time to live is the cache invalidation mechanism directly available through standard Cache scope configuration.
Reference topics: Cache Scope; Object Store Caching Strategy; entryTtl; expirationInterval; automatic cache expiration.
Official documentation: https://docs.mulesoft.com/mule-runtime/latest/cache-scope-strategy
NEW QUESTION # 43
A developer is working on a project that requires encrypting all data before sending it to a backend application. To accomplish this, the developer will use PGP encryption in the Mule 4 Cryptography module.
What is required to encrypt the data before sending it to the backend application?
Answer: A
Explanation:
To encrypt the data before sending it to the backend application using PGP encryption, the application needs the public key from the backend service. PGP encryption uses a public-key cryptography system, which means that each party has a pair of keys: a public key and a private key. The public key is used to encrypt data, and the private key is used to decrypt data. Therefore, to encrypt data for a specific recipient (the backend service), the application needs to use the recipient's public key. The recipient can then use its own private key to decrypt the data. Reference: https://docs.mulesoft.com/mule-runtime/4.3/cryptography-pgp
NEW QUESTION # 44
Which statement is true when using XML SDK for creating custom message processors?
Answer: C
Explanation:
When using XML SDK for creating custom message processors, all operations are public by default and can be used by any Mule application that imports them. There is no way to make an operation private or protected in XML SDK. Reference: https://docs.mulesoft.com/mule-sdk/1.1/xml-sdk#operations
NEW QUESTION # 45
A Mule application defines as SSL/TLS keystore properly 'tis,keystore.keyPassword'' as secure.
How can this property be referenced to access its value within the application?
Answer: A
Explanation:
secure::tiskeystore,keyPassowrd∗∗ShortExplanationofCorrectAnswerOnly:Toreferenceasecurepropertyvaluewithintheapplication,thedeveloperneedstousethesyntax{secure::}. In this case, the property name is tiskeystore,keyPassword, so the correct syntax is ${secure::tiskeystore,keyPassowrd}. Reference: https://docs.mulesoft.com/mule-runtime/4.3/secure-configuration-properties#referencing-secure-properties
NEW QUESTION # 46
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?
Answer: B
Explanation:
Based on the code snippet and MUnit test case below, when the MUnit test case is executed, the expected result is that the test case fails with an assertion error. This is because the assert-equals processor compares two values for equality, and fails if they are not equal. In this case, the expected value is 'Hello World', but the actual value returned by the implementation flow is 'Hello Mule'. Therefore, the assertion fails and an error is thrown. Reference: https://docs.mulesoft.com/munit/2.3/assert-equals-processor
NEW QUESTION # 47
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