Exam Questions and Answers for MCIA-Level-1-Maintenance Study Guide Questions and Answers!
MuleSoft Certified Integration Architect - Level 1 MAINTENANCE Certification Sample Questions and Practice Exam
Becoming a certified MuleSoft integration architect is a great way to demonstrate your knowledge and expertise in the field of integration architecture. MuleSoft Certified Integration Architect - Level 1 MAINTENANCE certification can help you stand out from other professionals in the industry and can open up new career opportunities. The MuleSoft Certified Integration Architect - Level 1 MAINTENANCE certification builds on the foundation of the Level 1 certification and demonstrates your ability to maintain and troubleshoot MuleSoft integrations.
The MCIA-Level-1-Maintenance exam covers a range of topics related to MuleSoft integration, including CloudHub deployment and management, API gateway management, and MuleSoft runtime management. It also covers best practices for troubleshooting and optimizing MuleSoft integration solutions. MCIA-Level-1-Maintenance exam is designed to help professionals stay up-to-date with the latest advancements in MuleSoft technologies and ensure that they are equipped to provide the best possible solutions to their clients.
NEW QUESTION # 18
An API implementation is being designed that must invoke an Order API which is known to repeatedly experience downtime. For this reason a fallback API is to be called when the Order API is unavailable. What approach to designing invocation of the fallback API provides the best resilience?
- A. Create a separate entry for the order API in API manager and then invoke this API as a fallback API if the primary Order API is unavailable
- B. Redirect client requests through an HTTP 303 temporary redirect status code to the fallback API whenever the Order API is unavailable
- C. Search Anypoint Exchange for a suitable existing fallback API and them implement invocations to their fallback API in addition to the Order API
- D. Set an option in the HTTP Requester component that invokes the order API to instead invoke a fallback API whenever an HTTP 4XX or 5XX response status code is received from Order API
Answer: B
Explanation:
Explanation
* Resilience testing is a type of software testing that observes how applications act under stress. It's meant to ensure the product's ability to perform in chaotic conditions without a loss of core functions or data; it ensures a quick recovery after unforeseen, uncontrollable events.
* In case an API invocation fails - even after a certain number of retries - it might be adequate to invoke a different API as a fallback. A fallback API, by definition, will never be ideal for the purpose of the API client, otherwise it would be the primary API.
* Here are some examples for fallback APIs:
- An old, deprecated version of the same API.
- An alternative endpoint of the same API and version (e.g. API in another CloudHub region).
- An API doing more than required, and therefore not as performant as the primary API.
- An API doing less than required and therefore forcing the API Client to offer a degraded service, which is still better than no service at all.
* API clients implemented as Mule applications offer the 'Until Successful Scope and Exception' strategies at their disposal, which together allow configuring fallback actions such as a fallback API invocation.
* All HTTP response status codes within the 3xx category are considered redirection messages. These codes indicate to the user agent (i.e. your web browser) that an additional action is required in order to complete the request and access the desired resource Diagram Description automatically generated
Hence correct answer is Redirect client requests through an HTTP 303 temporary redirect status code to the fallback API whenever the Order API is unavailable
NEW QUESTION # 19
An ABC Farms project team is planning to build a new API that is required to work with data from different domains across the organization.
The organization has a policy that all project teams should leverage existing investments by reusing existing APIs and related resources and documentation that other project teams have already developed and deployed.
To support reuse, where on Anypoint Platform should the project team go to discover and read existing APIs, discover related resources and documentation, and interact with mocked versions of those APIs?
- A. API Manager
- B. Runtime Manager
- C. Anypoint Exchange
- D. Design Center
Answer: C
Explanation:
Explanation
The mocking service is a feature of Anypoint Platform and runs continuously. You can run the mocking service from the text editor, the visual editor, and from Anypoint Exchange. You can simulate calls to the API in API Designer before publishing the API specification to Exchange or in Exchange after publishing the API specification.
NEW QUESTION # 20
A project team is working on an API implementation using the RAML definition as a starting point. The team has updated the definition to include new operations and has published a new version to exchange. Meanwhile another team is working on a mule application consuming the same API implementation.
During the development what has to be performed by the mule application team to take advantage of the newly added operations?
- A. Update the API connector in the API implementation and publish to exchange
- B. Update the REST connector from exchange in the client application
- C. Scaffold API implementation application with the new definition
- D. Scaffold the client application with the new definition
Answer: B
NEW QUESTION # 21
Mule application is deployed to Customer Hosted Runtime. Asynchronous logging was implemented to improved throughput of the system. But it was observed over the period of time that few of the important exception log messages which were used to rollback transactions are not working as expected causing huge loss to the Organization. Organization wants to avoid these losses. Application also has constraints due to which they cant compromise on throughput much. What is the possible option in this case?
- A. Mixed configuration of asynchronous or synchronous loggers should be used to log exceptions via synchronous way
- B. Persistent memory storage should be used in such scenarios
- C. External log appender needs to be used in this case
- D. Logging needs to be changed from asynchronous to synchronous
Answer: A
Explanation:
Explanation
Correct approach is to use Mixed configuration of asynchronous or synchronous loggers shoud be used to log exceptions via synchronous way Asynchronous logging poses a performance-reliability trade-off. You may lose some messages if Mule crashes before the logging buffers flush to the disk. In this case, consider that you can have a mixed configuration of asynchronous or synchronous loggers in your app. Best practice is to use asynchronous logging over synchronous with a minimum logging level of WARN for a production application. In some cases, enable INFO logging level when you need to confirm events such as successful policy installation or to perform troubleshooting. Configure your logging strategy by editing your application's src/main/resources/log4j2.xml file
NEW QUESTION # 22
As a part of project , existing java implementation is being migrated to Mulesoft. Business is very tight on the budget and wish to complete the project in most economical way possible.
Canonical object model using java is already a part of existing implementation. Same object model is required by mule application for a business use case. What is the best way to achieve this?
- A. Make use of Java module
- B. Use Anypoint exchange
- C. Create similar model for Mule applications
- D. Create a custom application to read Java code and make it available for Mule application
Answer: A
Explanation:
Explanation
Mule 4 is built to:
*Minimize the need for custom code.
*Avoid the need for you to know or understand Java.
However, some advanced uses cases require integration with custom Java code, such as:
*Reuse of a library, such as a tax calculation library.
*Reuse of a canonical object model that is standard in the organization.
*Execution of custom logic using Java.
Mule ref doc :https://docs.mulesoft.com/java-module/1.2/
NEW QUESTION # 23
An organization if struggling frequent plugin version upgrades and external plugin project dependencies. The team wants to minimize the impact on applications by creating best practices that will define a set of default dependencies across all new and in progress projects.
How can these best practices be achieved with the applications having the least amount of responsibility?
- A. Create a parent POM of all the required dependencies and reference each in each application's POM.xml file
- B. Create a mule domain project with all the dependencies define in its POM.xml file and add each application to the domain Project
- C. Add all dependencies in each application's POM.xml file
- D. Create a Mule plugin project with all the dependencies and add it as a dependency in each application's POM.xml file
Answer: A
NEW QUESTION # 24
An airline is architecting an API connectivity project to integrate its flight data into an online aggregation website. The interface must allow for secure communication high-performance and asynchronous message exchange.
What are suitable interface technologies for this integration assuming that Mulesoft fully supports these technologies and that Anypoint connectors exist for these interfaces?
- A. SOAP over HTTPS HOP over TLS gRPC over HTTPS
- B. AsyncAPI over HTTPS
AMQP with RabbitMQ JSON/REST over HTTPS - C. CSV over FTP YAM L over TLS JSON over HTTPS
- D. XML over ActiveMQ XML over SFTP XML/REST over HTTPS
Answer: B
NEW QUESTION # 25
What Mule application can have API policies applied by Anypoint Platform to the endpoint exposed by that Mule application?
- A. A Mule application that accepts gRPC requests over HTTP/2
- B. A Mule application that accepts requests over HTTP/1x
- C. A Mule application that accepts JSON requests over TCP but is NOT required to provide a response.
- D. A Mule application that accepts JSON requests over WebSocket
Answer: B
Explanation:
Explanation
* HTTP/1.1 keeps all requests and responses in plain text format.
* HTTP/2 uses the binary framing layer to encapsulate all messages in binary format, while still maintaining HTTP semantics, such as verbs, methods, and headers. It came into use in 2015, and offers several methods to decrease latency, especially when dealing with mobile platforms and server-intensive graphics and videos
* Currently, Mule application can have API policies only for Mule application that accepts requests over HTTP/1x
NEW QUESTION # 26
A leading e-commerce giant will use Mulesoft API's on runtime fabric (RTF) to process customer orders.
Some customer's sensitive information such as credit card information is also there as a part of a API payload.
What approach minimizes the risk of matching sensitive data to the original and can convert back to the original value whenever and wherever required?
- A. create a tokenization format and apply a tokenization policy to the API Gateway
- B. Apply a field level encryption policy in the API Gateway
- C. manager to detokenize the masking format to return the original value
- D. Apply masking to hide the sensitive information and then use API
- E. Used both masking and tokenization
Answer: D
NEW QUESTION # 27
In one of the critical payment related mule application, transaction is being used . As an enhancement to implementation , scatter gather route is introduced which is also the part of transaction group. Scatter gather route has 4 routes.
What will be the behavior of the Mule application in case of error occurs in 4th route of the scatter-gather router and transaction needs to be rolled back?
- A. Scatter Gather router cannot be part of transaction
- B. Only errored route will be rolled back
- C. All routes will be rolled back
Answer: C
Explanation:
Explanation
*Scatter Gather: When running within a transaction, Scatter Gather does not execute in parallel. This means that the second route is executed after the first one is processed, the third after the second one, etc. In case of error, all routes will be rolled back
NEW QUESTION # 28
What condition requires using a CloudHub Dedicated Load Balancer?
- A. When API invocations across multiple CloudHub workers must be load balanced
- B. When server-side load-balanced TLS mutual authentication is required between API implementations and API clients
- C. When custom DNS names are required for API implementations deployed to customer-hosted Mule runtimes
- D. When cross-region load balancing is required between separate deployments of the same Mule application
Answer: B
Explanation:
Explanation
Correct answer is When server-side load-balanced TLS mutual authentication is required between API implementations and API clients CloudHub dedicated load balancers (DLBs) are an optional component of Anypoint Platform that enable you to route external HTTP and HTTPS traffic to multiple Mule applications deployed to CloudHub workers in a Virtual Private Cloud (VPC). Dedicated load balancers enable you to: * Handle load balancing among the different CloudHub workers that run your application. * Define SSL configurations to provide custom certificates and optionally enforce two-way SSL client authentication. * Configure proxy rules that map your applications to custom domains. This enables you to host your applications under a single domain
NEW QUESTION # 29
A company is building an application network and has deployed four Mule APIs: one experience API, one process API, and two system APIs. The logs from all the APIs are aggregated in an external log aggregation tool. The company wants to trace messages that are exchanged between multiple API implementations. What is the most idiomatic (based on its intended use) identifier that should be used to implement Mule event tracing across the multiple API implementations?
- A. Mule event ID
- B. Client's IP address
- C. DataWeave UUID
- D. Mule correlation ID
Answer: D
Explanation:
Explanation
Correct answer is Mule correlation ID By design, Correlation Ids cannot be changed within a flow in Mule 4 applications and can be set only at source. This ID is part of the Event Context and is generated as soon as the message is received by the application. When a HTTP Request is received, the request is inspected for
"X-Correlation-Id" header. If "X-Correlation-Id" header is present, HTTP connector uses this as the Correlation Id. If "X-Correlation-Id" header is NOT present, a Correlation Id is randomly generated. For Incoming HTTP Requests: In order to set a custom Correlation Id, the client invoking the HTTP request must set "X-Correlation-Id" header. This will ensure that the Mule Flow uses this Correlation Id. For Outgoing HTTP Requests: You can also propagate the existing Correlation Id to downstream APIs. By default, all outgoing HTTP Requests send "X-Correlation-Id" header. However, you can choose to set a different value to
"X-Correlation-Id" header or set "Send Correlation Id" to NEVER.
NEW QUESTION # 30
An API implementation is being developed to expose data from a production database via HTTP requests. The API implementation executes a database SELECT statement that is dynamically created based upon data received from each incoming HTTP request. The developers are planning to use various types of testing to make sure the Mule application works as expected, can handle specific workloads, and behaves correctly from an API consumer perspective. What type of testing would typically mock the results from each SELECT statement rather than actually execute it in the production database?
- A. Integration testing
- B. Functional testing (black box)
- C. Performance testing
- D. Unit testing (white box)
Answer: D
Explanation:
Explanation
In Unit testing instead of using actual backends, stubs are used for the backend services. This ensures that developers are not blocked and have no dependency on other systems.
In Unit testing instead of using actual backends, stubs are used for the backend services. This ensures that developers are not blocked and have no dependency on other systems.
Below are the typical characteristics of unit testing.
-- Unit tests do not require deployment into any special environment, such as a staging environment
-- Unit tests san be run from within an embedded Mule runtime
-- Unit tests can/should be implemented using MUnit
-- For read-only interactions to any dependencies (such as other APIs): allowed to invoke production endpoints
-- For write interactions: developers must implement mocks using MUnit
-- Require knowledge of the implementation details of the API implementation under test
NEW QUESTION # 31
Organization wants to achieve high availability goal for Mule applications in customer hosted runtime plane.
Due to the complexity involved, data cannot be shared among of different instances of same Mule application.
What option best suits to this requirement considering high availability is very much critical to the organization?
- A. Use persistent object store
- B. The cluster can be configured
- C. Use third party product to implement load balancer
- D. High availability can be achieved only in CloudHub
Answer: C
Explanation:
Explanation
High availability is about up-time of your application
A) High availability can be achieved only in CloudHub isn't correct statement. It can be achieved in customer hosted runtime planes as well B) An object store is a facility for storing objects in or across Mule applications. Mule runtime engine (Mule) uses object stores to persist data for eventual retrieval. It can be used for disaster recovery but not for High Availability. Using object store can't guarantee that all instances won't go down at once. So not an appropriate choice.
NEW QUESTION # 32
As an enterprise architect, what are the two reasons for which you would use a canonical data model in the new integration project using Mulesoft Anypoint platform ( choose two answers )
- A. Because the model isolates the back and systems and support mule applications from change
- B. To isolate areas within a bounded context
- C. To have consistent data structure aligned in processes
- D. There are multiple canonical definitions of each data type
- E. To incorporate industry standard data formats
Answer: B,C
NEW QUESTION # 33
A Mule application is running on a customer-hosted Mule runtime in an organization's network. The Mule application acts as a producer of asynchronous Mule events. Each Mule event must be broadcast to all interested external consumers outside the Mule application. The Mule events should be published in a way that is guaranteed in normal situations and also minimizes duplicate delivery in less frequent failure scenarios.
The organizational firewall is configured to only allow outbound traffic on ports 80 and 443. Some external event consumers are within the organizational network, while others are located outside the firewall.
What Anypoint Platform service is most idiomatic (used for its intended purpose) for publishing these Mule events to all external consumers while addressing the desired reliability goals?
- A. Anypoint Exchange
- B. CloudHub VM queues
- C. CloudHub Shared Load Balancer
- D. Anypoint MQ
Answer: D
Explanation:
Explanation
Set the Anypoint MQ connector operation to publish or consume messages, or to accept (ACK) or not accept (NACK) a message.
NEW QUESTION # 34
Customer has deployed mule applications to different customer hosted mule run times. Mule applications are managed from Anypoint platform.
What needs to be configured to monitor these Mule applications from Anypoint monitoring and what sends monitoring data to Anypoint monitoring?
- A. Anypoint monitoring agent on each mule runtime
Anypoint monitoring agent sends monitoring data from the mule applications to Anypoint monitoring - B. By default, Anypoint monitoring agent will be installed on each Mule run time Anypoint Monitoring agent automatically sends monitoring data from the Mule applications to Anypoint monitoring
- C. Install runtime manager agent on each mule runtime
Runtime manager agent since monitoring data from the mule applications to Anypoint monitoring - D. Enable monitoring of individual applications from runtime manager application settings Runtime manager agent sends monitoring data from the mule applications to Anypoint monitoring
Answer: A
NEW QUESTION # 35
An organization is using Mulesoft cloudhub and develops API's in the latest version. As a part of requirements for one of the API's, third party API needs to be called. The security team has made it clear that calling any external API needs to have include listing As an integration architect please suggest the best way to accomplish the design plan to support these requirements?
- A. Implement a proxy for the third party API and enforce the IPinclude list policy and call this proxy from the flow of the API
- B. Implement the validation of includelisted IP operation
- C. Implement includelist IP on the cloudhub VPC firewall to allow the traffic
- D. Implement the Any point filter processor to implement the include list IP
Answer: A
NEW QUESTION # 36
An organization has chosen Mulesoft for their integration and API platform.
According to the Mulesoft catalyst framework, what would an integration architect do to create achievement goals as part of their business outcomes?
- A. build and publish foundational assets
- B. Measure the impact of the centre for enablement
- C. evangelize API's
- D. agree upon KPI's and help develop and overall success plan
Answer: D
NEW QUESTION # 37
A Mule application is being designed To receive nightly a CSV file containing millions of records from an external vendor over SFTP, The records from the file need to be validated, transformed. And then written to a database. Records can be inserted into the database in any order.
In this use case, what combination of Mule components provides the most effective and performant way to write these records to the database?
- A. Use a Scatter-Gather to bulk insert records into the database
- B. Use a Parallel for Each scope to Insert records one by one into the database
- C. Use a Batch job scope to bulk insert records into the database.
- D. Use a DataWeave map operation and an Async scope to insert records one by one into the database.
Answer: C
Explanation:
Explanation
Correct answer is Use a Batch job scope to bulk insert records into the database
* Batch Job is most efficient way to manage millions of records.
A few points to note here are as follows :
Reliability: If you want reliabilty while processing the records, i.e should the processing survive a runtime crash or other unhappy scenarios, and when restarted process all the remaining records, if yes then go for batch as it uses persistent queues.
Error Handling: In Parallel for each an error in a particular route will stop processing the remaining records in that route and in such case you'd need to handle it using on error continue, batch process does not stop during such error instead you can have a step for failures and have a dedicated handling in it.
Memory footprint: Since question said that there are millions of records to process, parallel for each will aggregate all the processed records at the end and can possibly cause Out Of Memory.
Batch job instead provides a BatchResult in the on complete phase where you can get the count of failures and success. For huge file processing if order is not a concern definitely go ahead with Batch Job
NEW QUESTION # 38
An organization designing a hybrid, load balanced, single cluster production environment. Due to performance service level agreement goals, it is looking into running the Mule applications in an active-active multi node cluster configuration.
What should be considered when running its Mule applications in this type of environment?
- A. Although the cluster environment is fully installed configured and running, it will not process any requests until an outage condition is detected by the primary node in the cluster.
- B. A Mule application deployed to multiple nodes runs in an isolation from the other nodes in the cluster
- C. All event sources, regardless of time , can be configured as the target source by the primary node in the cluster
- D. An external load balancer is required to distribute incoming requests throughout the cluster nodes
Answer: D
NEW QUESTION # 39
An insurance company is using a CIoudHub runtime plane. As a part of requirement, email alert should be sent to internal operations team every time of policy applied to an API instance is deleted As an integration architect suggest on how this requirement be met?
- A. Use audit logs in Anypoint platform to detect a policy deletion and configure the Audit logs alert feature to send an email to the operations team
- B. Use Anypoint monitoring to configure an alert that sends an email to the operations team every time a policy is deleted in API manager
- C. Implement a new application that uses the Audit log REST API to detect the policy deletion and send an email to operations team the SMTP connector
- D. Create a custom connector to be triggered every time of policy is deleted in API manager
Answer: C
NEW QUESTION # 40
Refer to the exhibit.
The HTTP Listener and the Logger are being handled from which thread pools respectively?
- A. CPU_INTENSIVE and Dedicated Selector pool
- B. UBER and NONBLOCKING
- C. Shared Selector Pool and CPU LITE
- D. BLOCKING _IO and UBER
Answer: C
NEW QUESTION # 41
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