MCIA-LEVEL-1 Online Practice Questions and Answers

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. Logging needs to be changed from asynchronous to synchronous

B. External log appender needs to be used in this case

C. Persistent memory storage should be used in such scenarios

D. Mixed configuration of asynchronous or synchronous loggers should be used to log exceptions via synchronous way

A trading company handles millions of requests a day. Due to nature of its business, it requires excellent performance and reliability within its application.

For this purpose, company uses a number of event-based API's hosted on various mule clusters that communicate across a shared message queue sitting within its network.

Which method should be used to meet the company's requirement for its system?

A. XA transactions and XA connected components

B. JMS transactions

C. JMS manual acknowledgements with a reliability pattern

D. VM queues with reliability pattern

An organization has deployed runtime fabric on an eight note cluster with performance profile. An API uses and non persistent object store for maintaining some of its state data. What will be the impact to the stale data if server crashes?

A. State data is preserved

B. State data is rolled back to a previously saved version

C. State data is lost

D. State data is preserved as long as more than one more is unaffected by the crash

A REST API is being designed to implement a Mule application.

What standard interface definition language can be used to define REST APIs?

A. Web Service Definition Language(WSDL)

B. OpenAPI Specification (OAS)

C. YAML

D. AsyncAPI Specification

An organization's governance process requires project teams to get formal approval from all key stakeholders for all new Integration design specifications. An integration Mule application Is being designed that interacts with various backend systems. The Mule application will be created using Anypoint Design Center or Anypoint Studio and will then be deployed to a customer-hosted runtime.

What key elements should be included in the integration design specification when requesting approval for this Mule application?

A. SLAs and non-functional requirements to access the backend systems

B. Snapshots of the Mule application's flows, including their error handling

C. A list of current and future consumers of the Mule application and their contact details

D. The credentials to access the backend systems and contact details for the administrator of each system

A new Mule application under development must implement extensive data transformation logic. Some of the data transformation functionality is already available as external transformation services that are mature and widely used across the organization; the rest is highly specific to the new Mule application.

The organization follows a rigorous testing approach, where every service and application must be extensively acceptance tested before it is allowed to go into production.

What is the best way to implement the data transformation logic for this new Mule application while minimizing the overall testing effort?

A. Implement and expose all transformation logic as mlaoservices using DataWeave, so it can be reused by any application component that needs it, including the new Mule application

B. Implement transformation logic in the new Mute application using DataWeave, replicating the transformation logic of existing transformation services

C. Extend the existing transformation services with new transformation logic and Invoke them from the new Mule application

D. Implement transformation logic in the new Mute application using DataWeave, invoking existing transformation services when possible

An application deployed to a runtime fabric environment with two cluster replicas is designed to periodically trigger of flow for processing a high-volume set of records from the source system and synchronize with the SaaS system using the Batch job scope.

After processing 1000 records in a periodic synchronization of 1 lakh records, the replicas in which batch job instance was started went down due to unexpected failure in the runtime fabric environment

What is the consequence of losing the replicas that run the Batch job instance?

A. The remaining 99000 records will be lost and left and processed

B. The second replicas will take over processing the remaining 99000 records

C. A new replacement replica will be available and will be process all 1,00,000 records from scratch leading to duplicate record processing

D. A new placement replica will be available and will take or processing the remaining 99,000 records

A high-volume eCommerce retailer receives thousands of orders per hour and requires notification of its order management, warehouse, and billing system for subsequent processing within 15 minutes of order submission through its website.

Which integration technology, when used for its typical and intended purpose, meets the retailer's requirements for this use case?

A. Managed File Transfer (MFT)

B. Publish/Subscriber Messaging Bus (Pub/Sub)

C. Enterprise Data Warehouse (EDW)

D. Extract Transform Load (ETL)