62 Exam Questions for MCD-Level-2 Updated Versions With Test Engine
Pass MCD-Level-2 Exam with Updated MCD-Level-2 Exam Dumps PDF 2024
NEW QUESTION # 29
A Mule application need to invoice an API hosted by an external system to initiate a process. The external API takes anywhere between one minute and 24 hours to compute its process.
Which implementation should be used to get response data from the external API after it completes processing?
- A. Use an HTTP Connector inside Async scope to invoice the API and wait for a response
- B. Expose an HTTP callback API in Mule and register it with the external system
- C. Use a Scheduler to check for a response every minute
- D. Use an HTTP Connector to invoke the API and wait for a response
Answer: B
Explanation:
Explanation
To get response data from the external API after it completes processing, the developer should expose an HTTP callback API in Mule and register it with the external system. This way, the external API can invoke the callback API with the response data when it is ready, instead of making the Mule application wait for a long time or poll for a response repeatedly. References:
https://docs.mulesoft.com/mule-runtime/4.3/http-listener-ref#callback
NEW QUESTION # 30
When registering a client application with an existing API instance or API Group instance, what is required to manually approve or reject request access?
- A. To configure the SLA tier for the application
- B. To configure the SLA tier for the application and have the role of Organization Administrator, API Manager Environment Administrator, or the Manage Contacts permission
- C. To only have Exchange Administrator permission
- D. To configure the SLA tier for the application and have the Exchange Administrator permission
Answer: B
Explanation:
Explanation
To manually approve or reject request access when registering a client application with an existing API instance or API Group instance, it is required to configure the SLA tier for the application and have one of the following roles or permissions: Organization Administrator, API Manager Environment Administrator, or Manage Contracts permission. These roles or permissions allow managing client applications and contracts in API Manager. References:
https://docs.mulesoft.com/api-manager/2.x/client-applications#managing-client-applications-and-contracts
NEW QUESTION # 31
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. Pom.xml
- B. Config.yaml
- C. Settings.xml
- D. Mule.artificact.json
Answer: A
Explanation:
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.
References: https://docs.mulesoft.com/mule-runtime/4.3/mmp-concept#application-deployment-descriptor
NEW QUESTION # 32
The flow is invoicing a target API. The API's protocol is HTTPS. The TLS configuration in the HTTP Request Configuration global element is set to None. A web client submits a request to
http:localhost:8081/vehicles.
If the certificate of the target API is signed by a certificate authority (CA), what is true about the HTTP Request operation when the flow executes?
- A. The HTTP Request operation will succeed if the CA'S certificate is present in the JRE's default keystore
- B. The HTTP Request operation will always succeed regardless of the CA
- C. The HTTP Request operation will always fail regardless of the CA
- D. The HTTP Request operation will succeed if the CA's certificate is present in the JRE's default truststore.
Answer: D
Explanation:
Explanation
The HTTP Request operation will use the default truststore of the JRE to validate the certificate of the target API. If the CA's certificate is present in the truststore, the operation will succeed. Otherwise, it will fail with a handshake exception. References: https://docs.mulesoft.com/mule-runtime/4.3/tls-configuration#tls-default
NEW QUESTION # 33
Which statement is true when working with correlation IDS?
- A. The VM Connector does not automatically propagate correction IDs
- B. The HTTP Listener generates correlation IDS unless a correlation ID is received in the HTTP request
- C. The Anypoint MQ Connector automatically propagates correlation IDS
- D. The HTTP Listener regenerates correlation IDs regardless of the HTTP request
Answer: B
Explanation:
Explanation
When working with correlation IDs, the HTTP Listener generates correlation IDs unless a correlation ID is received in the HTTP request. In that case, it propagates the received correlation ID throughout the flow execution. Correlation IDs are used to track events across different flows or applications. References:
https://docs.mulesoft.com/mule-runtime/4.3/about-mule-message#message-attributes
NEW QUESTION # 34
In a Mule project, Flow-1 contains a flow-ref to Flow-2 depends on data from Flow-1 to execute successfully.
Which action ensures the test suites and test cases written for Flow-1 and Flow-2 will execute successfully?
- A. Use ''Set Event to pass the input that is needed, and keep the test cases for Flow-1 and Flow-2 independent
- B. Use ''Before Test Case'' To collect data from Flow-1 test cases before running Flow-2 test cases
- C. Chain together the test suites and test cases for Flow-1 and Flow-2
- D. Use 'After Test Case' to produce the data needed from Flow-1 test cases to pass to Flow-2 test cases
Answer: A
Explanation:
Explanation
To ensure the test suites and test cases written for Flow-1 and Flow-2 will execute successfully, the developer should use a Set Event processor to pass the input that is needed by Flow-2, and keep the test cases for Flow-1 and Flow-2 independent. This way, the developer can isolate the testing of each flow and avoid coupling them together. References: https://docs.mulesoft.com/munit/2.3/munit-test-flow
NEW QUESTION # 35
A scatter-gather router is configured with four routes:Route A, B, C and D.
Route C false.
- A. Error,errorMessage,payload.failures['2']
- B. Payload failures['2']
- C. Error,errorMesage.payload.results ['2']
- D. Payload ['2']
Answer: A
Explanation:
Explanation
The result of accessing route C failure is Error,errorMessage,payload.failures['2']. This is because a scatter-gather router returns an aggregated message that contains an array of results from each route and an array of failures from each route. The failures array contains error objects with information about each failed route execution. To access route C failure, which is the third route (index 2), the developer needs to use Error.errorMessage.payload.failures['2'] expression. References:
https://docs.mulesoft.com/mule-runtime/4.3/scatter-gather-reference#scatter-gather-output
NEW QUESTION # 36
Refer to the exhibits.
Bioinfo System API is implemented and published to Anypoint Exchange. A developer wants to invoke this API using its REST Connector.
What should be added to the POM?
- A.
- B.
- C.
- D.
- E.
Answer: D
Explanation:
Explanation
To invoke Bioinfo System API using its REST Connector, option E should be added to the pom.xml file. This option adds a dependency for Bioinfo System API REST Connector with its group ID, artifact ID, version, classifier, and type. The classifier specifies that it is a REST Connector (raml-client), and the type specifies that it is a Mule plugin (mule-plugin). References:
https://docs.mulesoft.com/apikit/4.x/apikit-4-generate-from-rest-api-task#add-the-api-dependency-to-the-pom-fil
NEW QUESTION # 37
A Mule API receives a JSON payload and updates the target system with the payload. The developer uses JSON schemas to ensure the data is valid.
How can the data be validation before posting to the target system?
- A. Use a DataWeave 2.09 transform operation, and at the log of the DataWeave script, add:
%dw 2.0
Import.json-moduls - B. Add the JSON module dependency and add the validate-schema operation in the flow, configured to reference the schema
- C. Using the DataWeave if Else condition test the values of the payload against the examples included in the schema
- D. Apply the JSON Schema policy in API Manager and reference the correct schema in the policy configuration
Answer: B
Explanation:
Explanation
To validate the data before posting to the target system, the developer should add the JSON module dependency and add the validate-schema operation in the flow, configured to reference the schema. The JSON module provides a validate-schema operation that validates a JSON payload against a JSON schema and throws an error if the payload is invalid. References:
https://docs.mulesoft.com/json-module/1.1/json-validate-schema
NEW QUESTION # 38
A company with MuleSoft Titanium develops a Salesforce System API using MuleSoft out-of-the-box Salesforce Connector and deploys the API to CloudHub.
Which steps provide the average number of requests and average response time of the Salesforce Connector?
- A. Change the API Implementation to capture the information in the log.
Retrieve the information from the log file. - B. Access Anypoint Monitoring built-in dashboard.
Select a resource.
Locate the information under Log Manager < Raw Data. - C. Access Anypoint Monitoring's built-in dashboard. Select a resource.
Locate the information under the Connectors tab. - D. Access Anypoint Monitoring's built-in dashboard
Seclect a resource.
Create a custom dashboard to retrieve the information.
Answer: C
Explanation:
Explanation
To get the average number of requests and average response time of the Salesforce Connector, the developer should access Anypoint Monitoring's built-in dashboard, select a resource (such as an application or an API), and locate the information under the Connectors tab. The Connectors tab shows metrics for each connector used by the resource, such as average requests per minute, average response time, and failures. References:
https://docs.mulesoft.com/monitoring/built-in-dashboard-reference
NEW QUESTION # 39
Which plugin or dependency is required to unit test modules created with XML SDK?
- A. MUnit Extensions Maven plugin
- B. XMLUnit
- C. MUnit Maven plugin
- D. Junit
Answer: A
Explanation:
Explanation
To unit test modules created with XML SDK, the developer needs to use the MUnit Extensions Maven plugin.
This plugin allows testing XML SDK modules using MUnit by adding a dependency to the module under test and using a custom processor tag to invoke it. References:
https://docs.mulesoft.com/mule-sdk/1.1/xml-sdk#testing
NEW QUESTION # 40
Which command is used to convert a JKS keystore to PKCS12?
- A. Keytool-importkeystore -srckeystore keystore jks-srcstoretype PKCS12 -destkeystore keystore.p12
-deststoretype JKS - B. Keytool-importkeystore -srckeystore keystore jks-srcstoretype JKS -destkeystore keystore.p13
-deststoretype PKCS12 - C. Keytool-importkeystore -srckeystore keystore p12-srcstoretype PKCS12 -destkeystore keystore.jks
-deststoretype JKS - D. Keytool-importkeystore -srckeystore keystore p12-srcstoretype JKS -destkeystore keystore.p12
-deststoretype PKCS12
Answer: D
Explanation:
Explanation
To convert a JKS keystore to PKCS12, the developer needs to use the keytool-importkeystore command with the following options: -srckeystore keystore.jks -srcstoretype JKS -destkeystore keystore.p12 -deststoretype PKCS12. This command imports all entries from a source JKS keystore (keystore.jks) into a destination PKCS12 keystore (keystore.p12). References:
https://docs.oracle.com/en/java/javase/11/tools/keytool.html#GUID-5990A2E4-78E3-47B7-AE75-6D182625954
NEW QUESTION # 41
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, 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
- B. 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
- 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:
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. References:
https://docs.mulesoft.com/api-manager/2.x/http-caching-policy#policy-ordering
NEW QUESTION # 42
A heathcare customer wants to use hospital system data, which includes code that was developed using legacy tools and methods. The customer has created reusable Java libraries in order to read the data from the system.
What is the most effective way to develop an API retrieve the data from the hospital system?
- A. Create the Java code in your project and invoice the data from the code
- B. Include the libraries writes deploying the code into the runtime
- C. Install libraries in a local repository and refer to it in the pm.xml file
- D. Refer to JAR files in the code
Answer: C
Explanation:
Explanation
To develop an API that retrieves data from a hospital system using reusable Java libraries, the developer should install libraries in a local repository and refer to it in the pom.xml file. This way, the developer can use Maven to manage dependencies and invoke Java code from Mule applications using Java Module operations.
References:
https://docs.mulesoft.com/mule-runtime/4.3/java-module-reference#add-the-java-module-to-your-project
https://docs.mulesoft.com/mule-runtime/4.3/java-module-reference#invoke-java-code
NEW QUESTION # 43
A Mule application includes a subflow containing a Scatter.Gather scope. Within each log of the Scatter.Gatter. an HTTP connector calls a PUT endpoint to modify records in different upstream system. The subflow is called inside an Unit successful scope to retry if a transitory exception is raised.
A technical spike is being performed to increase reliability of the Mule application.
Which steps should be performed within the Mule flow above the ensure idempontent behavior?
- A. Ensure an error-handling flow performs corrective actions to roll back all changes if any leg of the Scatter-Gather fails
- B. None, the flow already exhibits idempotent behavior
- C. Change the PUT requests inside the Scatter-Gather to POST requests
- D. Remove the Put requests from the Scatter-Getter and perform them sequentially
Answer: A
Explanation:
Explanation
To ensure idempotent behavior within a Mule flow that contains a subflow with a Scatter-Gather scope, the developer should ensure an error-handling flow performs corrective actions to roll back all changes if any leg of the Scatter-Gather fails. Idempotency means that multiple identical requests have the same effect as a single request. Therefore, if one of the HTTP requests inside the Scatter-Gather fails, the error-handling flow should undo any changes made by other successful requests to ensure consistency and avoid partial updates.
References: https://docs.mulesoft.com/mule-runtime/4.3/scatter-gather-concept
https://docs.mulesoft.com/mule-runtime/4.3/error-handling
NEW QUESTION # 44
Which type of cache invalidation does the Cache scope support without having to write any additional code?
- A. Write-through invalidation
- B. White-behind invalidation
- C. Time to live
- D. Notification-based invalidation
Answer: C
Explanation:
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. References: https://docs.mulesoft.com/mule-runtime/4.3/cache-scope#cache_invalidation
NEW QUESTION # 45
A company deploys 10 public APIs to CloudHub. Each API has its individual health endpoint defined. The platform operation team wants to configure API Functional Monitoring to monitor the health of the APIs periodically while minimizing operational overhead and cost.
How should API Functional Monitoring be configured?
- A. From one private location with all 10 APIs in a single schedule
- B. From 10 public locations with each API in its own schedule
- C. From one public location with each API in its own schedule
- D. From one public location with all 10 APIs in a single schedule
Answer: D
Explanation:
Explanation
To configure API Functional Monitoring to monitor the health of 10 public APIs periodically while minimizing operational overhead and cost, the developer should use one public location with all 10 APIs in a single schedule. A public location is a worker that runs in a CloudHub shared environment, which is cheaper and easier to maintain than a private location. A single schedule allows running all 10 APIs tests at the same time and frequency, which reduces complexity and resource consumption. References:
https://docs.mulesoft.com/functional-monitoring/fm-create-monitor#create-a-monitor
NEW QUESTION # 46
The HTTP Request operation raises an HTTP CONNECTIVITY error.
Which HTTP status code and body are returned to the web client?
- A. HTTP Status Code:500.
Body 'Error in processing your request - B. HTTP Status Code:500.
Body 'The HTTP CONNECTIVITY Error description - C. HTTP Status Code:500.
Body 'Error in processing your request - D. HTTP Status Code:200.
Body 'Error in processing your request
Answer: C
Explanation:
Explanation
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
NEW QUESTION # 47
The Center for Enablement team published a common application as a reusable module to the central Nexus repository.
How can the common application be included in all API implementations?
- A. Add a Maven dependency in the PCM file with multiple-plugin as <classifier>
- B. Copy the common application's source XML file and out it in a new flow file in the src/main/mule folder
- C. Add a Maven dependency in the POM file with jar as <classifier>
- D. Download the common application from Naxus and copy it to the src/main/resources folder in the API
Answer: C
Explanation:
Explanation
To include a common application as a reusable module in all API implementations, the developer should add a Maven dependency in the POM file with jar as <classifier>. This way, the developer can reuse Mule code from another application by packaging it as a JAR file and adding it as a dependency in the POM file of the API implementation. The classifier element specifies that it is a JAR file. References:
https://docs.mulesoft.com/mule-runtime/4.3/mmp-concept#add-a-maven-dependency-to-the-pom-file
NEW QUESTION # 48
Refer to the exhibit.
When creating a new project, which API implementation allows for selecting the correct API version and scaffolding the flows from the API specification?
- A. Download RAML from Design Center'
- B. Import RAML from local file
- C. Generate a local RAML from anypoint Studio
- D. Import a published API
Answer: D
Explanation:
Explanation
To create a new project that selects the correct API version and scaffolds the flows from the API specification, the developer should import a published API. This option allows importing an API specification that has been published to Anypoint Exchange or Design Center, and selecting a specific version of that API specification.
The developer can also choose to scaffold flows based on that API specification. References:
https://docs.mulesoft.com/apikit/4.x/apikit-4-new-project-task
NEW QUESTION # 49
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, caching the filename and location between requests
- D. Store the key and full contents of the file in an Object Store
Answer: B
Explanation:
Explanation
To temporarily persist large files over 10MB between flow executions, and routinely query whether the file data exists on separate executions, the developer should store the contents of the file on separate storage, and store the key and location of the file object using Object Store v2. This way, the developer can avoid storing large files in memory or exceeding the size limit of Object Store v2 (10MB per object). The developer can also use Object Store v2 operations to query, retrieve, or delete the file object by its key. References:
https://docs.mulesoft.com/object-store/osv2-faq#can-i-store-files-in-object-store-v2
NEW QUESTION # 50
Which statement is true about using mutual TLS to secure an application?
- A. Mutual TLS ensures only authorized end users are allowed to access an endpoint
- B. Mutual TLS increases the encryption strength versus server-side TLS alone
- C. Mutual TLS authenticates the identity of the server before the identity of the client
- D. Mutual TLS requires a hardware security module to be used
Answer: C
Explanation:
Explanation
Mutual TLS (mTLS) is an extension of TLS that requires both parties (client and server) to present their certificates to each other during the handshake process. This way, both parties can verify each other's identity and establish a secure connection. The authentication of the server happens before the authentication of the client, as the server sends its certificate first and then requests the client's certificate. References:
https://docs.mulesoft.com/mule-runtime/4.3/tls-configuration#mutual-authentication
NEW QUESTION # 51
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?
- A. The application needs to both the private and public keys to encrypt the data
- B. The application needs the public key from the backend service to encrypt the data
- C. The application needs the private key from the backend service to encrypt the data
- D. The application needs to configure HTTPS TLS context information to encrypt the data
Answer: B
Explanation:
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. References: https://docs.mulesoft.com/mule-runtime/4.3/cryptography-pgp
NEW QUESTION # 52
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