Fast2test MCD-Level-2問題集62問でMuleSoft Certified Developerを確実実践
リアル最新MCD-Level-2試験問題MCD-Level-2問題集
質問 # 25
Which statement is true about using mutual TLS to secure an application?
- A. Mutual TLS requires a hardware security module to be used
- B. Mutual TLS ensures only authorized end users are allowed to access an endpoint
- C. Mutual TLS increases the encryption strength versus server-side TLS alone
- D. Mutual TLS authenticates the identity of the server before the identity of the client
正解：D
解説：
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
質問 # 26
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. Error,errorMesage.payload.results ['2']
- C. Payload failures['2']
- D. Payload ['2']
正解：A
解説：
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
質問 # 27
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 a Scheduler to check for a response every minute
- B. Expose an HTTP callback API in Mule and register it with the external system
- C. Use an HTTP Connector to invoke the API and wait for a response
- D. Use an HTTP Connector inside Async scope to invoice the API and wait for a response
正解：B
解説：
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
質問 # 28
Which statement is true when using XML SDK for creating custom message processors?
- A. All operations are public
- B. An XML SDK provides both inbound and outbound operations
- C. Properties are fields defined by an end user of the XML SDK component and serve as a global configuration for the entire Mule project in which they are used
- D. Operations can be reused in recursive calls
正解：A
解説：
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. References: https://docs.mulesoft.com/mule-sdk/1.1/xml-sdk#operations
質問 # 29
Refer to the exhibit.
A Mule application pom.xml configures the Maven Resources plugin to exclude parsing binary files in the project's src/main/resources/certs directory.
Which configuration of this plugin achieves a successful build?
- A.
- B.
- C.
- D.
正解：B
解説：
Explanation
To configure the Maven Resources plugin to exclude parsing binary files in the project's src/main/resources/certs directory, option C should be used. This option specifies that any files with .cer or .jks extensions under the certs directory should be excluded from filtering. Filtering is a process of replacing placeholders with actual values in resource files during the build process. Binary files should not be filtered because they may become corrupted or unusable. References:
https://maven.apache.org/plugins/maven-resources-plugin/examples/filter.html
https://maven.apache.org/plugins/maven-resources-plugin/examples/include-exclude.html
質問 # 30
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 'After Test Case' to produce the data needed from Flow-1 test cases to pass to Flow-2 test cases
- 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 ''Set Event to pass the input that is needed, and keep the test cases for Flow-1 and Flow-2 independent
正解：D
解説：
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
質問 # 31
Multiple individual Mute application need to use the Mule Maven plugin to deploy to CloudHub.
The plugin configuration should .. reused where necessary and anything project, specific should be property-based.
Where should the Mule Maven details be configured?
- A. Pom, xml
- B. A parent pom.xml
- C. A Bill of Materials (BOM) parent pm
- D. Settings, xml
正解：B
解説：
Explanation
To reuse Mule Maven plugin configuration across multiple individual Mule applications, the developer should use a parent pom.xml file. A parent pom.xml file defines common configuration for one or more child projects that inherit from it. The developer can specify common properties and dependencies for all child projects in the parent pom.xml file, such as Mule Maven plugin configuration, and then reference them in each child project's pom.xml file using placeholders. References:
https://docs.mulesoft.com/mule-runtime/4.3/mmp-concept#parent-pom
https://maven.apache.org/guides/introduction/introduction-to-the-pom.html#Project_Inheritance
質問 # 32
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. B1, A1, F1, A2, B2
- B. A1, B1, F1, B2, A2
- C. F1, B1, A1, A2, B2
- D. F1, A1, B1, B2, A2
正解：B
解説：
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. References:
https://docs.mulesoft.com/api-manager/2.x/policies-policy-order
質問 # 33
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 to configure HTTPS TLS context information to encrypt the data
- C. The application needs the public key from the backend service to encrypt the data
- D. The application needs the private key from the backend service to encrypt the data
正解：C
解説：
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
質問 # 34
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. Download the common application from Naxus and copy it to the src/main/resources folder in the API
- B. Add a Maven dependency in the POM file with jar as <classifier>
- C. Copy the common application's source XML file and out it in a new flow file in the src/main/mule folder
- D. Add a Maven dependency in the PCM file with multiple-plugin as <classifier>
正解：B
解説：
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
質問 # 35
Which type of cache invalidation does the Cache scope support without having to write any additional code?
- A. Notification-based invalidation
- B. White-behind invalidation
- C. Write-through invalidation
- D. Time to live
正解：D
解説：
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
質問 # 36
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 and have the role of Organization Administrator, API Manager Environment Administrator, or the Manage Contacts permission
- B. To configure the SLA tier for the application and have the Exchange Administrator permission
- C. To configure the SLA tier for the application
- D. To only have Exchange Administrator permission
正解：A
解説：
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
質問 # 37
When implementing a synchronous API where the event source is an HTTP Listener, a developer needs to return the same correlation ID back to the caller in the HTTP response header.
How can this be achieved?
- A. NO action is needed as the correlation ID is returned to the caller in the response header by default
- B. Enable the CorrelationID checkbox in the HTTP Listener configuration
- C. Configure a custom correlation policy
- D. Enable the auto-generate CorrelationID option when scaffolding the flow
正解：A
解説：
Explanation
When implementing a synchronous API where the event source is an HTTP Listener, Mule automatically propagates some message attributes between flows via outbound and inbound properties. One of these attributes is correlation ID, which is returned to the caller in the response header by default as MULE_CORRELATION_ID. References:
https://docs.mulesoft.com/mule-runtime/4.3/about-mule-message#message-attributes
質問 # 38
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.
正解：B
解説：
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
質問 # 39
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 p12-srcstoretype JKS -destkeystore keystore.p12
-deststoretype PKCS12 - C. Keytool-importkeystore -srckeystore keystore p12-srcstoretype PKCS12 -destkeystore keystore.jks
-deststoretype JKS - D. Keytool-importkeystore -srckeystore keystore jks-srcstoretype JKS -destkeystore keystore.p13
-deststoretype PKCS12
正解：B
解説：
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
質問 # 40
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. Change the PUT requests inside the Scatter-Gather to POST requests
- B. None, the flow already exhibits idempotent behavior
- C. Remove the Put requests from the Scatter-Getter and perform them sequentially
- D. Ensure an error-handling flow performs corrective actions to roll back all changes if any leg of the Scatter-Gather fails
正解：D
解説：
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
質問 # 41
A custom policy needs to be developed to intercept all cutbound HTTP requests made by Mule applications.
Which XML element must be used to intercept outbound HTTP requests?
- A. http-policy:source
- B. http-policy:processor
- C. It is not possible to intercept outgoing HTTP requests, only inbound requests
- D. htt-policy:operation
正解：B
解説：
Explanation
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
質問 # 42
Refer to the exhibit.
A developer generates the base scaffolding for an API in Anypoint Studio.
Which HTTP status code is returned while testing using the API Kit console if no values are entered in client-secret?
- A. HTTP status code:403
- B. HTTP status code:500
- C. HTTP status code:400
- D. HTTP status code:200
正解：A
解説：
Explanation
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
質問 # 43
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?
- A. ${secure::tiskeystore,keyPassowrd}
- B. ${secure::tiskeystore,keyPassowrd}
- C. p{secure::tiskeystore,keyPassowrd}
- D. #{secure::tiskeystore,keyPassowrd}
正解：A
解説：
Explanation
secure::tiskeystore,keyPassowrdShortExplanationofCorrectAnswerOnly:Toreferenceasecurepropertyvaluewithin 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
質問 # 44
A Mule application uses API autodiscovery to access and enforce policies for a RESTful implementation.
- A. Northing because flowRef is an optional attribute which can be passed runtime
- B. Any of the APIkit generate implement flows
- C. The name of the flow that has APlkit Console to receive all incoming RESTful operation requests.
- D. The name of the flow that has HTTP listener to receive all incoming RESTful operation requests
正解：D
解説：
Explanation
To use API autodiscovery to access and enforce policies for a RESTful implementation, flowRef must be set to the name of the flow that has HTTP listener to receive all incoming RESTful operation requests. This way, API autodiscovery can identify the API implementation and associate it with the corresponding API specification and policies in API Manager. The flow that has HTTP listener is usually the main flow that contains the APIKit Router. References:
https://docs.mulesoft.com/api-manager/2.x/api-auto-discovery-new-concept#flowref
質問 # 45
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?
- A. The test case fails with an unexpected error type
- B. The test case fails with an assertion error
- C. The test throws an error and does not start
- D. The test case passes
正解：B
解説：
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. References: https://docs.mulesoft.com/munit/2.3/assert-equals-processor
質問 # 46
Refer to the exhibit.
What is the result of the Mule Maven Plugin configuration of the value of property its,keystorePassoword in CloudHub 2.0?
- A. The Mule server encrypts the value
- B. Anypoint Studio secures the value
- C. CloudHub encrypts the value
- D. Runtime Manager masks the value
正解：D
解説：
Explanation
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
質問 # 47
......
MCD-Level-2別格な問題集で最上級の成績にさせるMCD-Level-2問題：https://jp.fast2test.com/MCD-Level-2-premium-file.html