Online Access Free MuleSoft.MCIA-Level-1.v2023-04-26.q77 Practice Test (Page 15)

MCIA-Level-1 Exam Question 66

A mule application must periodically process a large dataset which varies from 6 GB lo 8 GB from a back-end database and write transform data lo an FTPS server using a properly configured bad job scope.
The performance requirements of an application are approved to run in the cloud hub 0.2 vCore with 8 GB storage capacity and currency requirements are met.
How can the high rate of records be effectively managed in this application?

A.Use streaming with a file store repeatable strategy for reading records from the database and batch aggregator with an optimal size

B.Use streaming with a file storage repeatable strategy for reading records from the database and batch aggregator with streaming to write to FTPS

C.Use streaming with a file store repeatable strategy reading records from the database and batch aggregator without any required configuration

D.Use streaming with an in-memory reputable store strategy for reading records from the database and batch aggregator with streaming to write to FTPS

MCIA-Level-1 Exam Question 67

A Mule application is being designed to do the following:
Step 1: Read a SalesOrder message from a JMS queue, where each SalesOrder consists of a header and a list of SalesOrderLineltems.
Step 2: Insert the SalesOrder header and each SalesOrderLineltem into different tables in an RDBMS.
Step 3: Insert the SalesOrder header and the sum of the prices of all its SalesOrderLineltems into a table In a different RDBMS.
No SalesOrder message can be lost and the consistency of all SalesOrder-related information in both RDBMSs must be ensured at all times.
What design choice (including choice of transactions) and order of steps addresses these requirements?

A.1) Read the JMS message (NOT in an XA transaction)
2) Perform BOTH DB inserts in ONE DB transaction
3) Acknowledge the JMS message

B.1) Read the JMS message (NOT in an XA transaction)
2) Perform EACH DB insert in a SEPARATE DB transaction
3) Acknowledge the JMS message

C.1) Read the JMS message in an XA transaction
2) In the SAME XA transaction, perform BOTH DB inserts but do NOT acknowledge the JMS message

D.1) Read and acknowledge the JMS message (NOT in an XA transaction)
2) In a NEW XA transaction, perform BOTH DB inserts

Correct Answer: A

* Option A says "Perform EACH DB insert in a SEPARATE DB transaction". In this case if first DB insert is successful and second one fails then first insert won't be rolled back causing inconsistency. This option is ruled out.
* Option D says Perform BOTH DB inserts in ONE DB transaction.
Rule of thumb is when one or more DB connections are required we must use XA transaction as local transactions support only one resource. So this option is also ruled out.
* Option B acknowledges the before DB processing, so message is removed from the queue. In case of system failure at later point, message can't be retrieved.
* Option C is Valid: Though it says "do not ack JMS message", message will be auto acknowledged at the end of transaction. Here is how we can ensure all components are part of XA transaction: https://docs.mulesoft.com/jms-connector/1.7/jms-transactions Additional Information about transactions:
* XA Transactions - You can use an XA transaction to group together a series of operations from multiple transactional resources, such as JMS, VM or JDBC resources, into a single, very reliable, global transaction.
* The XA (eXtended Architecture) standard is an X/Open group standard which specifies the interface between a global transaction manager and local transactional resource managers.
The XA protocol defines a 2-phase commit protocol which can be used to more reliably coordinate and sequence a series of "all or nothing" operations across multiple servers, even servers of different types
* Use JMS ack if
- Acknowledgment should occur eventually, perhaps asynchronously
- The performance of the message receipt is paramount
- The message processing is idempotent
- For the choreography portion of the SAGA pattern
* Use JMS transactions
- For all other times in the integration you want to perform an atomic unit of work
- When the unit of work comprises more than the receipt of a single message
- To simply and unify the programming model (begin/commit/rollback)

MCIA-Level-1 Exam Question 68

An insurance company has an existing API which is currently used by customers. API is deployed to customer hosted Mule runtime cluster. The load balancer that is used to access any APIs on the mule cluster is only configured to point to applications hosted on the server at port 443.
Mule application team of a company attempted to deploy a second API using port 443 but the application will not start and checking logs shows an error indicating the address is already in use.
Which steps must the organization take to resolve this error and allow customers to access both the API's?

A.Move the HTTP listener configurations from the API's and package them in a mule domain project using port 443

B.Change the base path of the HTTP listener configuration in the second API to a different one from the first API

C.Set HTTP listener configuration in both API's to allow for connections from multiple ports

D.Set the HTTP listener of the second API to use different port than the one used in the first API

MCIA-Level-1 Exam Question 69

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.Create a custom connector to be triggered every time of policy is deleted in API manager

D.Implement a new application that uses the Audit log REST API to

MCIA-Level-1 Exam Question 70

An organization currently uses a multi-node Mule runtime deployment model within their datacenter, so each Mule runtime hosts several Mule applications. The organization is planning to transition to a deployment model based on Docker containers in a Kubernetes cluster. The organization has already created a standard Docker image containing a Mule runtime and all required dependencies (including a JVM), but excluding the Mule application itself.
What is an expected outcome of this transition to container-based Mule application deployments?

A.Required redesign of Mule applications to follow microservice architecture principles

B.Required migration to the Docker and Kubernetes-based Anypoint Platform - Private Cloud Edition

C.Required change to the URL endpoints used by clients to send requests to the Mule applications

D.Guaranteed consistency of execution environments across all deployments of a Mule application

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MCIA-Level-1 Exam Question 66

MCIA-Level-1 Exam Question 67

MCIA-Level-1 Exam Question 68

MCIA-Level-1 Exam Question 69

MCIA-Level-1 Exam Question 70

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