Mulesoft MuleSoft Certified Architect MCIA-LEVEL-1-MAINTENANCE Questions & Answers

• Question 231:

  What condition requires using a CloudHub Dedicated Load Balancer?

  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

  Correct Answer: D

  Correct answer is When server-side load-balanced TLS mutual authentication is required between API implementations and API clients CloudHub dedicated load balancers (DLBs) are an optional component of Anypoint Platform that enable you to route external HTTP and HTTPS traffic to multiple Mule applications deployed to CloudHub workers in a Virtual Private Cloud (VPC). Dedicated load balancers enable you to: * Handle load balancing among the different CloudHub workers that run your application. * Define SSL configurations to provide custom certificates and optionally enforce two-way SSL client authentication. * Configure proxy rules that map your applications to custom domains. This enables you to host your applications under a single domain

• Question 232:

  In Anypoint Platform, a company wants to configure multiple identity providers(Idps) for various lines of business (LOBs) Multiple business groups and environments have been defined for the these LOBs. What Anypoint Platform feature can use multiple Idps access the company's business groups and environment?

  A. User management

  B. Roles and permissions

  C. Dedicated load balancers

  D. Client Management

  Correct Answer: D

  *

  Anypoint Platform acts as a client provider by default, but you can also configure external client providers to authorize client applications.

  *

  As an API owner, you can apply an OAuth 2.0 policy to authorize client applications that try to access your API. You need an OAuth 2.0 provider to use an OAuth 2.0 policy.

  *

  You can configure more than one client provider and associate the client providers with different environments. If you configure multiple client providers after you have already created environments, you can associate the new client

  providers with the environment.

  *

  You should review the existing client configuration before reassigning client providers to avoid any downtime with existing assets or APIs.

  *

  When you delete a client provider from your master organization, the client provider is no longer available in environments that used it.

  *

  Also, assets or APIs that used the client provider can no longer authorize users who want to access them.

  MuleSoft Reference:

  https://docs.mulesoft.com/access-management/managing-api-clients

  https://www.folkstalk.com/2019/11/mulesoft-integration-and- platform.html

• Question 233:

  A Mule application is running on a customer-hosted Mule runtime in an organization's network. The Mule application acts as a producer of asynchronous Mule events. Each Mule event must be broadcast to all interested external consumers outside the Mule application. The Mule events should be published in a way that is guaranteed in normal situations and also minimizes duplicate delivery in less frequent failure scenarios.

  The organizational firewall is configured to only allow outbound traffic on ports 80 and 443. Some external event consumers are within the organizational network, while others are located outside the firewall.

  What Anypoint Platform service is most idiomatic (used for its intended purpose) for publishing these Mule events to all external consumers while addressing the desired reliability goals?

  A. CloudHub VM queues

  B. Anypoint MQ

  C. Anypoint Exchange

  D. CloudHub Shared Load Balancer

  Correct Answer: B

  Set the Anypoint MQ connector operation to publish or consume messages, or to accept (ACK) or not accept (NACK) a message.

  Reference: https://docs.mulesoft.com/mq/

• Question 234:

  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

• Question 235:

  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

  Correct Answer: B

• Question 236:

  A global organization operates datacenters in many countries. There are private network links between these datacenters because all business data (but NOT metadata) must be exchanged over these private network connections.

  The organization does not currently use AWS in any way.

  The strategic decision has Just been made to rigorously minimize IT operations effort and investment going forward.

  What combination of deployment options of the Anypoint Platform control plane and runtime plane(s) best serves this organization at the start of this strategic journey?

  A. MuleSoft-hosted Anypoint Platform control plane CloudHub Shared Worker Cloud in multiple AWS regions

  B. Anypoint Platform - Private Cloud Edition Customer-hosted runtime plane in each datacenter

  C. MuleSoft-hosted Anypoint Platform control plane Customer-hosted runtime plane in multiple AWS regions

  D. MuleSoft-hosted Anypoint Platform control plane Customer-hosted runtime plane in each datacenter

  Correct Answer: D

  Correct answer is MuleSoft-hosted Anypoint Platform control plane Customer-hosted runtime plane in each datacenter There are two things to note about the question which can help us figure out correct answer.. * Business data must be exchanged over these private network connections which means we can not use MuleSoft provided Cloudhub option. So we are left with either customer hosted runtime in external cloud provider or customer hosted runtime in their own premises. As customer does not use AWS at the moment. Hence that don't have the immediate option of using Customer-hosted runtime plane in multiple AWS regions. hence the most suitable option for runtime plane is Customer-hosted runtime plane in each datacenter * Metadata has no limitation to reside in organization premises. Hence for control plane MuleSoft hosted Anypoint platform can be used as a strategic solution. Hybrid is the best choice to start. Mule hosted Control plane and Customer hosted Runtime to start with.Once they mature in cloud migration, everything can be in Mule hosted.

• Question 237:

  Refer to the exhibit.

  

  An organization is sizing an Anypoint VPC for the non-production deployments of those Mule applications that connect to the organization's on-premises systems. This applies to approx. 60 Mule applications. Each application is deployed to two CloudHub i workers. The organization currently has three non-production environments (DEV, SIT and UAT) that share this VPC. The AWS region of the VPC has two AZs. The organization has a very mature DevOps approach which automatically progresses each application through all non-production environments before automatically deploying to production. This process results in several Mule application deployments per hour, using CloudHub's normal zero-downtime deployment feature.

  What is a CIDR block for this VPC that results in the smallest usable private IP address range?

  A. 10.0.0.0/26 (64 IPS)

  B. 10.0.0.0/25 (128 IPs)

  C. 10.0.0.0/24 (256 IPs)

  D. 10.0.0.0/22 (1024 IPs)

  Correct Answer: D

  Mule applications are deployed in CloudHub workers and each worker is assigned with a dedicated IP ?For zero downtime deployment, each worker in CloudHub needs additional IP addresses ?A few IPs in a VPC are reserved for

  infrastructure (generally 2 IPs) ?The IP addresses are usually in a private range with a subnet block specifier, such as 10.0.0.1/24 ?The smallest CIDR network subnet block you can assign for your VPC is /24 (256 IP addresses) (60*3 env * 2

  worker per application ) + 50% of (total) for zero downtime = 540 In this case correct answer is 10.0.0.0/22 as this provided 1024 IP's .

  Other IP's are insufficient.

• Question 238:

  An organization has defined a common object model in Java to mediate the communication between different Mule applications in a consistent way. A Mule application is being built to use this common object model to process responses from

  a SOAP API and a REST API and then write the processed results to an order management system.

  The developers want Anypoint Studio to utilize these common objects to assist in creating mappings for various transformation steps in the Mule application.

  What is the most idiomatic (used for its intended purpose) and performant way to utilize these common objects to map between the inbound and outbound systems in the Mule application?

  A. Use JAXB (XML) and Jackson (JSON) data bindings

  B. Use the WSS module

  C. Use the Java module

  D. Use the Transform Message component

  Correct Answer: A

  Reference: https://docs.mulesoft.com/mule-runtime/3.9/understanding-mule-configuration

• Question 239:

  A Mule application is synchronizing customer data between two different database systems.

  What is the main benefit of using XA transaction over local transactions to synchronize these two database system?

  A. Reduce latency

  B. Increase throughput

  C. Simplifies communincation

  D. Ensure consistency

  Correct Answer: D

  *

  XA transaction add tremendous latency so "Reduce Latency" is incorrect option XA transactions define "All or No" commit protocol.

  *

  Each local XA resource manager supports the A.C.I.D properties (Atomicity, Consistency, Isolation, and Durability). Reference: https://docs.mulesoft.com/mule-runtime/4.3/xa-transactions

• Question 240:

  An organization will deploy Mule applications to Cloudhub, Business requirements mandate that all application logs be stored ONLY in an external splunk consolidated logging service and NOT in Cloudhub.

  In order to most easily store Mule application logs ONLY in Splunk, how must Mule application logging be configured in Runtime Manager, and where should the log4j2 splunk appender be defined?

  A. Keep the default logging configuration in RuntimeManager Define the splunk appender in ONE global log4j.xml file that is uploaded once to Runtime Manager to support at Mule application deployments.

  B. Disable Cloudhub logging in Runtime Manager Define the splunk appender in EACH Mule application's log4j2.xml file

  C. Disable Cloudhub logging in Runtime Manager Define the splunk appender in ONE global log4j.xml file that is uploaded once to Runtime Manger to support at Mule application deployments.

  D. Keep the default logging configuration in Runtime Manager Define the Splunk appender in EACH Mule application log4j2.xml file

  Correct Answer: B

  By default, CloudHub replaces a Mule application's log4j2.xml file with a CloudHub log4j2.xml file. In CloudHub, you can disable the CloudHub provided Mule application log4j2 file. This allows integrating Mule application logs with custom or third-party log management systems