QUESTION: 57

The AnyAirline organization's passenger reservations center is designing an integration solution that combines invocations of three different System APIs (bookFlight, bookHotel, and bookCar) in a business transaction. Each System API makes calls to a single database.

The entire business transaction must be rolled back when at least one of the APIs fails.

What is the most idiomatic (used for its intended purpose) way to integrate these APIs in near real
time that provides the best balance of consistency, performance, and reliability?

Implement eXtended Architecture (XA) transactions between the API implementations Coordinate between the API implementations using a Saga pattern Implement caching in each API implementation to improve performance
Implement local transactions within each API implementation Configure each API implementation to also participate in the same eXtended Architecture (XA)

transaction
Implement caching in each API implementation to improve performance
Implement local transactions in each API implementation Coordinate between the API implementations using a Saga pattern Apply various compensating actions depending on where a failure occurs
Implement an eXtended Architecture (XA) transaction manager in a Mule application using a Saga pattern
Connect each API implementation with the Mule application using XA transactions Apply various compensating actions depending on where a failure occurs

Answer(s): C

Explanation:

Reference:

https://aws.amazon.com/blogs/compute/building-a-serverless-distributed-application
using-a-saga-orchestration-pattern/

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QUESTION: 58

As a part of project requirement, client will send a stream of data to mule application. Payload size can vary between 10mb to 5GB. Mule application is required to transform the data and send across multiple sftp servers. Due to the cost cuttings in the organization, mule application can only be allocated one worker with size of 0.2 vCore.

As an integration architect , which streaming strategy you would suggest to handle this scenario?

In-memory non repeatable stream
File based non-repeatable stream
In-memory repeatable stream
File based repeatable storage

Answer(s): D

Explanation:

As the question says that data needs to be sent across multiple sftp serves , we cannot use non
repeatable streams. The non-repeatable strategy disables repeatable streams, which enables you to

read an input stream only once.
You cant use in memory storage because with 0.2 vcore you will get only 1 GB of heap memory. Hence application will error out for file more than 1 GB. Hence the correct option is file base repeatable stream

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QUESTION: 59

Mule application muleA deployed in cloudhub uses Object Store v2 to share data across instances. As a part of new requirement , application muleB which is deployed in same region wants to access this Object Store.
Which of the following option you would suggest which will have minimum latency in this scenario?

Object Store REST API
Object Store connector
Both of the above option will have same latency
Object Store of one mule application cannot be accessed by other mule application.

Answer(s): A

Explanation:

V2 Rest API is recommended for on premise applications to access Object Store. It also comes with overhead of encryption and security of using rest api. With Object Store v2, the API call is localized to the same data center as the Runtime Manager app.
But in this case requirement is to access the OS of other mule application and not the same mule application.
You can configure a Mule app to use the Object Store REST API to store and retrieve values from an object store in another Mule app.
However, Object Store v2 is not designed for app-to-app communication.

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QUESTION: 60

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?

Make use of Java module
Create similar model for Mule applications
Create a custom application to read Java code and make it available for Mule application
Use Anypoint exchange

Answer(s): A

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/

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Free MCIA-LEVEL-1-MAINTENANCE Exam Braindumps (page: 15)

QUESTION: 57

Explanation:

Reference:

QUESTION: 58

Explanation:

QUESTION: 59

Explanation:

QUESTION: 60

Explanation: