MCD-LEVEL-2 Online Practice Questions and Answers

Correct Answer: D

The result of the Mule Maven Plugin configuration of the value of property its,keystorePassword in CloudHub 2.0 is that Runtime Manager masks the value. This means that Runtime Manager hides or obscures the value from anyone who views it in Runtime Manager or Anypoint Platform.

References:https://docs.mulesoft.com/runtime-manager/runtime-manager-agent-for-mule4#properties-tab

Correct Answer: C

When the HTTP Request operation raises an HTTP CONNECTIVITY error, it triggers an on-error-continue handler that sets a payload with `Error in processing your request'. Since no status code is explicitly set in this handler, it defaults to 500 (INTERNAL SERVER ERROR). Therefore, the web client receives an HTTP response with status code 500 and body `Error in processing your request'. References:https://docs.mulesoft.com/mule-runtime/4.3/error-handling#on-error-continue

Correct Answer: C

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 theCloudHub region, environment, and worker size. The developer needs to specify these properties in the pom.xml file before using Maven to deploy the application. References:https://docs.mulesoft.com/mule-runtime/4.3/mmp-concept#application-deployment-descriptor

Correct Answer: A

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 executedafter both policies are executed before the flow. Then, Policy B is executed after the flow before Policy A is executed after the flow. References:https://docs.mulesoft.com/api-manager/2.x/policies-policy-order

Correct Answer: C

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. References:https://docs.mulesoft.com/mule-runtime/4.3/cryptography-pgp

Correct Answer: B

secure::tiskeystore,keyPassowrdShortExplanationofCorrectAnswerOnly:Toreferenceasecur epropertyvaluewithintheapplication,thedeveloperneedstousethesyntax{secure::}. In this case, the property name is tiskeystore,keyPassword, so the correct syntax is ${secure::tiskeystore,keyPassowrd}. References: https://docs.mulesoft.com/mule-runtime/4.3/secure-configuration-properties#referencing-secure-properties

Correct Answer: A

The MuleSoft recommended method to encrypt sensitive property data is to use the Secure Properties Tool that comes with Anypoint Studio. This tool allows encrypting properties files with a secret key and then decrypting them at runtime using the same key. The encryption key and sensitive data should be different for each environment to ensure security and avoid accidental exposure of sensitive data. References:https://docs.mulesoft.com/mule-runtime/4.3/secure-configuration-properties

Correct Answer: B

Based on the code snippet and schema.json file below, when testing using the API Kit console if no values are entered in client-secret, HTTP status code 403 (FORBIDDEN) is returned. This is because client-secret is defined as a required header parameter in schema.json file, which means that it must be present in every request. If no values are entered in client-secret, then it is equivalent to omitting this header parameter, which violates the schema and causes APIKit Router to return HTTP status code 403. References:https://docs.mulesoft.com/apikit/4.x/apikit-4-headers

Correct Answer: D

The http-policy:processor element is used to intercept outbound HTTP requests made by Mule applications. It allows customizing the request before it is sent to the target API and modifying the response after it is received from the target API. References:https://docs.mulesoft.com/api-manager/2.x/policy-mule4-custom-policy#policy-xml-file

Correct Answer: D

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. References:https://docs.mulesoft.com/mule-sdk/1.1/xml-sdk#operations