Free Practice Questions for MuleSoft MCIA-Level-1 Exam

SLAs and non-functional requirements to access the backend systems. Only this option actually speaks to design parameters and reqs. * Below two are technical implementations and not the part of design: - Snapshots of the Mule application’s flows, including their error handling - The credentials to access the backend systems and contact details for the administrator of each system * List of consumers is not relevant to the design

Parallel Execution:

In a Scatter-Gather scope, all routes are executed in parallel. This allows multiple operations to be performed simultaneously, which can improve performance and efficiency when dealing with independent tasks.

Transaction Management:

When Scatter-Gather operates within a local transaction, all database operations performed in parallel routes are part of the same transaction context.

Error Handling and Rollback:

If any error occurs within any of the parallel routes inside the Scatter-Gather scope, it triggers a rollback of all the database operations performed within the transaction. This ensures data consistency and integrity.

References:

MuleSoft Documentation on Scatter-Gather

Transaction management in MuleSoft

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Explanation

High availability is about up-time of your application

A) High availability can be achieved only in CloudHub isn't correct statement. It can be achieved in customer hosted runtime planes as well

B) An object store is a facility for storing objects in or across Mule applications. Mule runtime engine (Mule) uses object stores to persist data for eventual retrieval. It can be used for disaster recovery but not for High Availability. Using object store can't guarantee that all instances won't go down at once. So not an appropriate choice.

Anypoint Exchange is the Anypoint Platform component that helps integration developers discover and share reusable APIs, connectors, and templates. It acts as a central repository where developers can publish and access various assets, facilitating reuse and collaboration within the organization. By using Anypoint Exchange, developers can reduce duplication of effort, speed up development processes, and ensure consistency across integrations.

Other components like API Manager, Anypoint Studio, and Design Center serve different purposes, such as managing APIs, developing Mule applications, and designing API specifications, but they are not specifically focused on discovering and sharing reusable assets.

References

MuleSoft Documentation on Anypoint Exchange

Best Practices for Asset Reuse on Anypoint Platform

Explanation

Correct answer is Only MuleSoft provided certificates can be used for server side certificate

* The CloudHub Shared Load Balancer terminates TLS connections and uses its own server-side certificate.

* You would need to use dedicated load balancer which can enable you to define SSL configurations to provide custom certificates and optionally enforce two-way SSL client authentication.

* 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.

Additional Info on SLB Vs DLB:

Table Description automatically generated

Requirement Analysis: The organization wants to standardize dependencies across all new and ongoing MuleSoft projects to minimize the impact of frequent plugin version upgrades and external plugin project dependencies.

Solution: Creating a parent POM (Project Object Model) file with all required dependencies and referencing it in each application's POM.xml file is the best practice.

Implementation Steps:

Create Parent POM:

Define a parent POM.xml file that includes all common dependencies, plugin versions, and configurations.

Example of a parent POM.xml:

pom 1.0.0 pom org.mule.runtime mule-core-extensions-maven-plugin 1.0.0

Reference Parent POM:

In each application's POM.xml file, reference the parent POM.

Example of a child POM.xml referencing the parent POM:

4.0.0 com.example parent-pom 1.0.0 child-application 1.0.0

Build and Test: Ensure that all applications build successfully with the parent POM and test them to confirm that the common dependencies are correctly applied.

Advantages:

Consistency: Ensures all projects use the same versions of dependencies, reducing the risk of conflicts.

Manageability: Simplifies dependency management by centralizing it in one parent POM file.

Scalability: Makes it easier to update dependencies across multiple projects by changing only the parent POM.

References

MuleSoft Documentation on Managing dependencies with Maven

Apache Maven Documentation on POM Reference

If the size of the stream exceeds the maximum, a STREAM_MAXIMUM_SIZE_EXCEEDED error is raised.

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/

Explanation

Security Assertion Markup Language (SAML) is an open standard that allows identity providers (IdP) to pass authorization credentials to service providers (SP).

SAML transactions use Extensible Markup Language (XML) for standardized communications between the identity provider and service providers.

SAML is the link between the authentication of a user’s identity and the authorization to use a service.

WS-Security is the key extension that supports many authentication models including: basic username/password credentials, SAML, OAuth and more.

A common way that SOAP API’s are authenticated is via SAML Single Sign On (SSO). SAML works by facilitating the exchange of authentication and authorization credentials across applications. However, there is no specification that describes how to add SAML to REST web services. 

Reference : https://www.oasis-open.org/committees/download.php/16768/wss-v1.1-spec-os-SAMLTokenProfile.pdf

The advantage of using OAuth 2.0 client credentials and access tokens over only API keys for API authentication is that if the access token is compromised, the client credentials do not have to be reissued.

OAuth 2.0 is a secure protocol for authenticating clients and authorizing them to access protected resources. It works by having the client authenticate with the authorization server and receive an access token, which is then used to authenticate requests to the API. If the access token is compromised, it can be revoked and replaced without needing to reissue the client credentials.

References: MuleSoft Certified Integration Architect - Level 1 Official Text Book and Resources:

Chapter 7: Security

Section 7.2: OAuth 2.0

According to the National Institute of Standards and Technology (NIST), a hybrid cloud is a cloud computing deployment model that describes a composition of two or more distinct cloud infrastructures (private, community, or public) that remain unique entities but are bound together by standardized or proprietary technology that enables data and application portability. Hybrid clouds allow organizations to leverage the advantages of multiple cloud environments, such as combining the scalability and cost-efficiency of public clouds with the security and control of private clouds. This model facilitates flexibility and dynamic scalability, supporting diverse workloads and business needs while ensuring that sensitive data and applications can remain in a controlled private environment.

References

NIST Definition of Cloud Computing

Hybrid Cloud Overview and Benefits