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[General] Seeing Mule-Dev-301 Valid Test Braindumps - Say Goodbye to Salesforce Certified

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【General】 Seeing Mule-Dev-301 Valid Test Braindumps - Say Goodbye to Salesforce Certified

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Salesforce Certified MuleSoft Developer II Sample Questions (Q29-Q34):NEW QUESTION # 29
Which pattern should be used to invoke multiple HTTP APIs in parallel and roll back failed requests in sequence?
  • A. A Parallel for Each scope with each HTTP request wrapped in a Try scope
  • B. A database as a transactional outbox and an Until Successful router to retry any requests
  • C. Scatter-Gather as central Saga orchestrator for all API request with compensating actions for failing routes
  • D. VM queues as a reliability pattern with error handlers to roll back any requests
Answer: C
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 # 30
A Mule application contain two policies Policy A and Policy A has order1, and Policy B has order 2. Policy A Policy B, and a flow are defined by he configuration below.

When a HTTP request arrives at the Mule application's endpoint, what will be the execution order?
  • A. F1, A1, B1, B2, A2
  • B. B1, A1, F1, A2, B2
  • C. F1, B1, A1, A2, B2
  • D. A1, B1, F1, B2, A2
Answer: D
Explanation:
Based on the configuration below, when a HTTP request arrives at the Mule application's endpoint, the execution order will be A1, B1, F1, B2, A2. This is because policies are executed before and after the API implementation flow according to their order attribute. Policy A has order 1, which means it is executed first before Policy B, which has order 2. The flow is executed after both policies are executed before the flow. Then, Policy B is executed after the flow before Policy A is executed after the flow. Reference: https://docs.mulesoft.com/api-manager/2.x/policies-policy-order

NEW QUESTION # 31
Which type of cache invalidation does the Cache scope support without having to write any additional code?
  • A. White-behind invalidation
  • B. Notification-based invalidation
  • C. Write-through invalidation
  • D. Time to live
Answer: D
Explanation:
The Cache scope supports time to live (TTL) as a cache invalidation strategy without having to write any additional code. TTL specifies how long the cached response is valid before it expires and needs to be refreshed. The Cache scope also supports custom invalidation strategies using MEL or DataWeave expressions. Reference: https://docs.mulesoft.com/mule-r ... #cache_invalidation

NEW QUESTION # 32
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 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
  • B. 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
  • C. In case of a cache hit, both the OAuth and HTTP Caching policies are evaluated; then the cached response is returned to the caller
  • D. In case of a cache it, only the HTTP Caching policy is evaluating; then the cached response is returned to the caller
Answer: D
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-ma ... icy#policy-ordering

NEW QUESTION # 33
A new Mule project has been created in Anypoint Studio with the default settings.
Which file inside the Mule project must be modified before using Maven to successfully deploy the application?
  • A. Settings.xml
  • B. Pom.xml
  • C. Config.yaml
  • D. Mule.artificact.json
Answer: B
Explanation:
To use Maven to successfully deploy the application, the developer needs to modify the pom.xml file inside the Mule project. The pom.xml file contains the configuration and dependencies of the Mule application, as well as the deployment information such as the CloudHub region, environment, and worker size. The developer needs to specify these properties in the pom.xml file before using Maven to deploy the application. Reference: https://docs.mulesoft.com/mule-r ... ployment-descriptor

NEW QUESTION # 34
......
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