Online Access Free MCD-Level-2 Practice Test

A Mule application deployed to multiple Cloudhub 2.0 replicas needs to temporarily persist large files over
10MB between flow executions, and routinely needs to query whether the file data exists on separate executions.
How can this be achieved?

• A.Use an in-memory Object Store
• B.Store the contents of the file on separate storage, and store the key and location of the file Object using Object Store v2
• C.Store the key and full contents of the file in an Object Store
• D.Store the key and full contents of the file, caching the filename and location between requests

An order processing system is composed of multiple Mule application responsible for warehouse, sales and shipping. Each application communication using Anypoint MQ. Each message must be correlated against the original order ID for observability and tracing.
How should a developer propagate the order ID as the correlation ID across each message?

• A.Use the underlying HTTP request of Anypoint MQ to set the 'X-CORRELATION_ID' header to the order ID
• B.Set a custom Anypoint MQ user property to propagate the order ID and set the correlation ID in the receiving applications.
• C.Use the default correlation ID, Anypoint MQ will sutomatically propagate it.
• D.Wrap all Anypoint MQ Publish operations within a With CorrelationID scope from the Tracing module, setting the correlation ID to the order ID

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 Continue to catch permanent errors like HTTP UNAUTHORIZED.
• B.Configure retrying until a MULERETRY_EXHAUSTED error is raised or the API responds back with a successful response.
• C.In Until Successful configuration, set the retry count to 1 for error type HTTP: UNAUTHORIZED.
• D.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.

Which type of cache invalidation does the Cache scope support without having to write any additional code?

• A.White-behind invalidation
• B.Write-through invalidation
• C.Time to live
• D.Notification-based invalidation

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 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 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 hit, both the OAuth and HTTP Caching policies are evaluated; then the cached response is returned to the caller