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Download DemoVendor: Mulesoft
Certifications: MuleSoft Certified Architect
Exam Code: MCIA-LEVEL-1-MAINTENANCE
Exam Name: MuleSoft Certified Integration Architect - Level 1 MAINTENANCE
Updated: Apr 22, 2024
Q&As: 116
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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 Parallel for Each scope to Insert records one by one into the database
B. Use a Scatter-Gather to bulk insert records 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.
Correct Answer: C
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
A banking company is developing a new set of APIs for its online business. One of the critical API's is a master lookup API which is a system API. This master lookup API uses persistent object store. This API will be used by all other APIs to provide master lookup data.
Master lookup API is deployed on two cloudhub workers of 0.1 vCore each because there is a lot of master data to be cached. Master lookup data is stored as a key value pair. The cache gets refreshed if they key is not found in the cache.
Doing performance testing it was observed that the Master lookup API has a higher response time due to database queries execution to fetch the master lookup data.
Due to this performance issue, go-live of the online business is on hold which could cause potential financial loss to Bank.
As an integration architect, which of the below option you would suggest to resolve performance issue?
A. Implement HTTP caching policy for all GET endpoints for the master lookup API and implement locking to synchronize access to object store
B. Upgrade vCore size from 0.1 vCore to 0,2 vCore
C. Implement HTTP caching policy for all GET endpoints for master lookup API
D. Add an additional Cloudhub worker to provide additional capacity
Correct Answer: A
In Anypoint Platform, a company wants to configure multiple identity providers (IdPs) for multiple lines of business (LOBs). Multiple business groups, teams, and environments have been defined for these LOBs. What Anypoint Platform feature can use multiple IdPs across the company's business groups, teams, and environments?
A. MuleSoft-hosted (CloudHub) dedicated load balancers
B. Client (application) management
C. Virtual private clouds
D. Permissions
Correct Answer: A
To use a dedicated load balancer in your environment, you must first create an Anypoint VPC. Because you can associate multiple environments with the same Anypoint VPC, you can use the same dedicated load balancer for your different environments.
Reference: https://docs.mulesoft.com/runtime-manager/cloudhub-dedicated-load-balancer
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