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Pass the MuleSoft Certified Architect MCIA-Level-1-Maintenance Questions and answers with ValidTests

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Questions # 1:

A company is planning to extend its Mule APIs to the Europe region. Currently all new applications are deployed to Cloudhub in the US region following this naming convention

{API name}-{environment}. for example, Orders-SAPI-dev, Orders-SAPI-prod etc.

Considering there is no network restriction to block communications between API's, what strategy should be implemented in order to apply the same new API's running in the EU region of CloudHub as well to minimize latency between API's and target users and systems in Europe?

Options:

A.

Set region property to Europe (eu-de) in API manager for all the mule application

No need to change the naming convention

B.

Set region property to Europe (eu-de) in API manager for all the mule application

Change the naming convention to {API name}-{environment}-{region} and communicate this change to the consuming applications and users

C.

Set region property to Europe (eu-de) in runtime manager for all the mule application

No need to change the naming convention

D.

Set region property to Europe (eu-de) in runtime manager for all the mule application

Change the naming convention to {API name}-{environment}-{region} and communicate this change to the consuming applications and users

Expert Solution
Questions # 2:

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?

Options:

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.

Expert Solution
Questions # 3:

An organization has decided on a cloud migration strategy to minimize the organization's own IT resources. Currently the organization has all of its new applications running on its own premises and uses an on-premises load balancer that exposes all APIs under the base URL (https://api.rutujar.com ).

As part of migration strategy, the organization is planning to migrate all of its new applications and load balancer CloudHub.

What is the most straightforward and cost-effective approach to Mule application deployment and load balancing that preserves the public URL's?

Options:

A.

Deploy the Mule application to Cloudhub

Create a CNAME record for base URL( httpsr://api.rutujar.com) in the Cloudhub shared load balancer that points to the A record of theon-premises load balancer

Apply mapping rules in SLB to map URLto their corresponding Mule applications

B.

Deploy the Mule application to Cloudhub

Update a CNAME record for base URL ( https://api.rutujar.com) in the organization's DNS server to point to the A record of the Cloudhub dedicated load balancer

Apply mapping rules in DLB to map URLto their corresponding Mule applications

C.

Deploy the Mule application to Cloudhub

Update a CNAME record for base URL ( https://api.rutujar.com) in the organization's DNS server to point to the A record of the CloudHub shared load balancer

Apply mapping rules in SLB to map URLto their corresponding Mule applications

D.

For each migrated Mule application, deploy an API proxy application to Cloudhub with all traffic to the mule applications routed through a Cloud Hub Dedicated load balancer (DLB)

Update a CNAME record for base URL ( https://api.rutujar.com) in the organization's DNS server to point to the A record of the CloudHub dedicated load balancer

Apply mapping rules in DLB to map each API proxy appl

Expert Solution
Questions # 4:

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?

Options:

A.

Apply masking to hide the sensitive information and then use API

B.

manager to detokenize the masking format to return the original value

C.

create a tokenization format and apply a tokenization policy to the API Gateway

D.

Used both masking and tokenization

E.

Apply a field level encryption policy in the API Gateway

Expert Solution
Questions # 5:

A marketing organization is designing a Mule application to process campaign data. The Mule application will periodically check for a file in a SFTP location and process the records in the file. The size of the file can vary from 10MB to 5GB. Due to the limited availabiltty of vCores, the Mule application is deployed to a single CloudHub worker configured with vCore size 0.2.

The application must transform and send different formats of this file to three different downstream SFTP locations.

What is the most idiomatic (used for its intended purpose) and performant way to configure the SFTP operations or event sources to process the large files to support these deployment requirements?

Options:

A.

Use an in-memory repeatable stream

B.

Use a file-stored non-repeatable stream

C.

Use an in-memory non-repeatable stream

D.

Use a file-stored repeatable stream

Expert Solution
Questions # 6:

An organization has an HTTPS-enabled Mule application named Orders API that receives requests from another Mule application named Process Orders.

The communication between these two Mule applications must be secured by TLS mutual authentication (two-way TLS).

At a minimum, what must be stored in each truststore and keystore of these two Mule applications to properly support two-way TLS between the two Mule applications while properly protecting each Mule application's keys?

Options:

A.

Orders API truststore: The Orders API public key

Process Orders keystore: The Process Orders private key and public key

B.

Orders API truststore: The Orders API private key and public key

Process Orders keystore: The Process Orders private key public key

C.

Orders API truststore: The Process Orders public key

Orders API keystore: The Orders API private key and public key

Process Orders truststore: The Orders API public key

Process Orders keystore: The Process Orders private key and public key

D.

Orders API truststore: The Process Orders public key

Orders API keystore: The Orders API private key

Process Orders truststore: The Orders API public key

Process Orders keystore: The Process Orders private key

Expert Solution
Questions # 7:

An insurance provider is implementing Anypoint platform to manage its application infrastructure and is using the customer hosted runtime for its business due to certain financial requirements it must meet. It has built a number of synchronous API's and is currently hosting these on a mule runtime on one server

These applications make use of a number of components including heavy use of object stores and VM queues.

Business has grown rapidly in the last year and the insurance provider is starting to receive reports of reliability issues from its applications.

The DevOps team indicates that the API's are currently handling too many requests and this is over loading the server. The team has also mentioned that there is a significant downtime when the server is down for maintenance.

As an integration architect, which option would you suggest to mitigate these issues?

Options:

A.

Add a load balancer and add additional servers in a server group configuration

B.

Add a load balancer and add additional servers in a cluster configuration

C.

Increase physical specifications of server CPU memory and network

D.

Change applications by use an event-driven model

Expert Solution
Questions # 8:

A Mule application is built to support a local transaction for a series of operations on a single database. The Mule application has a Scatter-Gather that participates in the local transaction.

What is the behavior of the Scatter-Gather when running within this local transaction?

Options:

A.

Execution of each route within the Scatter-Gather occurs sequentially

Any error that occurs inside the Scatter-Gather will result in a rollback of all the database operations

B.

Execution of all routes within the Scatter-Gather occurs in parallel

Any error that occurs inside the Scatter-Gather will result in a rollback of all the database operations

C.

Execution of each route within the Scatter-Gather occurs sequentially

Any error that occurs inside the Scatter-Gather will NOT result in a rollback of any of the database operations

D.

Execution of each route within the Scatter-Gather occurs in parallel

Any error that occurs inside the Scatter-Gather will NOT result in a rollback of any of the database operations

Expert Solution
Questions # 9:

What is a key difference between synchronous and asynchronous logging from Mule applications?

Options:

A.

Synchronous logging writes log messages in a single logging thread but does not block the Mule event being processed by the next event processor

B.

Asynchronous logging can improve Mule event processing throughput while also reducing the processing time for each Mule event

C.

Asynchronous logging produces more reliable audit trails with more accurate timestamps

D.

Synchronous logging within an ongoing transaction writes log messages in the same thread that processes the current Mule event

Expert Solution
Questions # 10:

What condition requires using a CloudHub Dedicated Load Balancer?

Options:

A.

When cross-region load balancing is required between separate deployments of the same Mule application

B.

When custom DNS names are required for API implementations deployed to customer-hosted Mule runtimes

C.

When API invocations across multiple CloudHub workers must be load balanced

D.

When server-side load-balanced TLS mutual authentication is required between API implementations and API clients

Expert Solution
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