MCIA-Level-1 MuleSoft Certified Integration Architect - Level 1 Free Practice Exam Questions (2025 Updated)

Explanation

Correct answer is: Add a Mulesoft hosted Anypoint VPC configured and with VPC Peering to the AWS VPC * Connecting to your Anypoint VPC extends your corporate network and allows CloudHub workers to access resources behind your corporate firewall.

* You can connect on-premises data centers through a secured VPN tunnel, or a private AWS VPC through VPC peering, or by using AWS Direct Connect.

MuleSoft Doc Reference : https://docs.mulesoft.com/runtime-manager/virtual-private-cloud

According to the MuleSoft Catalyst framework, an Integration Architect plays a crucial role in defining and achieving business outcomes. One of their key responsibilities is to agree upon Key Performance Indicators (KPIs) and help develop an overall success plan. This involves working with stakeholders to identify measurable goals and ensure that the integration initiatives align with the organization’s strategic objectives.

KPIs are critical for tracking progress, measuring success, and making data-driven decisions. By agreeing on KPIs and developing a success plan, the Integration Architect ensures that the organization can objectively measure the impact of its integration efforts and adjust strategies as needed to achieve desired business outcomes.

References:

MuleSoft Catalyst Knowledge Hub

AnTo resolve performance issues with the Master Look Up API, the following methods can be applied:

Implement the HTTP caching policy for all GET endpoints for the Master Look Up API: This caching policy helps reduce the number of database queries by storing frequently accessed data in cache, thus improving response times for subsequent requests.

Upgrade the vCore size from 0.1 vCore to 0.2 vCore: Increasing the vCore size can provide more computational resources, which can improve the processing power and overall performance of the API, particularly under high load conditions.

References:

HTTP Caching Policy

Scaling and Performance

swer: A

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

To automate the promotion and deployment of API Manager policies as part of a CI/CD process, an organization can use the Anypoint CLI (Command Line Interface). The Anypoint CLI provides a set of commands to interact with various components of the Anypoint Platform, including API Manager.

Using the Anypoint CLI, you can:

Apply policies to API instances.

Promote APIs and their associated policies across different environments.

Script these actions as part of the CI/CD pipeline to ensure consistency and automation in managing API policies.

Other tools like the MUnit Maven plugin, Mule Maven plugin, and Runtime Manager agent do not provide direct capabilities to manage API Manager policies.

References

MuleSoft Anypoint CLI Documentation

Automating API Management with Anypoint CLI

Explanation

We need to note few things about the scenario which will help us in reaching the correct solution.

Point 1 : The APIs are all publicly available and are associated with several mobile applications and web applications. This means Apply an IP blacklist policy is not viable option. as blacklisting IPs is limited to partial web traffic. It can't be useful for traffic from mobile application

Point 2 : The organization does NOT want to use any authentication or compliance policies for these APIs. This means we can not apply HTTPS mutual authentication scheme.

Header injection or removal will not help the purpose.

By its nature, JSON is vulnerable to JavaScript injection. When you parse the JSON object, the malicious code inflicts its damages. An inordinate increase in the size and depth of the JSON payload can indicate injection. Applying the JSON threat protection policy can limit the size of your JSON payload and thwart recursive additions to the JSON hierarchy.

Hence correct answer is Apply a JSON threat protection policy to all APIs to detect potential threat vectors

To securely handle sensitive properties in a Mule application deployed through a CI/CD pipeline, the properties should be encrypted and stored as global configuration properties. This ensures that sensitive data is not visible in cleartext in Runtime Manager or any other configuration files. The steps are:

Encrypt Sensitive Properties: Use a tool or process to encrypt sensitive property values.

Global Configuration Properties: Store these encrypted values as global configuration properties within the Mule application.

Configuration in Runtime Manager: Ensure that these properties are referenced correctly so that administrators with proper permissions can manage them in Runtime Manager without exposing the sensitive values.

This approach aligns with security best practices and complies with the requirement to hide sensitive properties while allowing administrative control.

References

MuleSoft Documentation on Secure Property Placeholder

Best Practices for Handling Sensitive Data in MuleSoft

Explanation

An SLA for the upstream API CANNOT be provided.

An Enterprise Architect would use a single enterprise-wide canonical data model (CDM) when designing an integration solution to achieve the following benefits:

Reduced Dependencies: By standardizing on a single data model, it simplifies the integration process between multiple systems that may use different data formats. This eliminates the need for numerous point-to-point transformations.

Consistency and Reusability: A CDM ensures consistent data representation across the enterprise, which promotes data integrity and reusability of integration components.

Simplified Maintenance: Having a single data model reduces the complexity of maintaining and updating integration solutions, as changes need to be made in only one place.

The CDM acts as an abstraction layer that decouples systems, facilitating easier integration and reducing the potential for errors.

References

MuleSoft Documentation on Canonical Data Models

Best Practices for Data Integration with MuleSoft

In MuleSoft's Anypoint Exchange, a complete API specification in RAML (RESTful API Modeling Language) or OAS (OpenAPI Specification) format is represented as a "REST API". This asset type provides a comprehensive description of the API, including endpoints, methods, request/response structures, and other relevant details. It serves as the blueprint for implementing and consuming the API, ensuring that all stakeholders have a clear understanding of its functionality and design.

Other asset types like connectors, API spec fragments, and SOAP APIs represent different components or partial specifications, but only REST APIs provide the full specification in the mentioned formats.

References

MuleSoft Anypoint Exchange Documentation

API Specification Documentation on RAML and OAS

To secure all internal APIs within an integration solution by using an API proxy to apply required authentication and authorization policies, the organization should use API Management (APIM). APIM provides a comprehensive platform to manage, secure, and analyze APIs. It allows the IT team to create API proxies, enforce security policies, control access through authentication and authorization mechanisms, and monitor API usage.

Using APIM for this purpose ensures that internal APIs are protected with standardized security policies, facilitating centralized management and governance of API traffic. This approach is specifically designed for managing APIs and their security, making it the most suitable choice among the options provided.

References

MuleSoft Documentation on API Management

Best Practices for API Security and Governance

An application load balancer routes requests to a RESTful web API secured by Anypoint Flex Gateway using the HTTPS protocol. HTTPS (HyperText Transfer Protocol Secure) ensures that the communication between the load balancer and the gateway is encrypted and secure, protecting the data from eavesdropping and tampering. HTTPS is the standard protocol for secure communication over the internet, especially for APIs handling sensitive data.

References:

Securing APIs with HTTPS

Understanding HTTPS

Explanation

Correct Answer: XSD In this approach to developing a web service, you begin with an XML schema (XSD file) that defines XML data structures to be used as parameters and return types in the web service operations.

----------------------------------------------------------------------------------------------------------------- Reference: https://www.w3schools.com/xml/schema_intro.asp

To extend Mule APIs to the Europe region and ensure minimal latency between APIs and target users and systems in Europe, it is important to set the region property correctly and update the naming convention. Here’s the detailed approach:

Setting the Region Property:

Runtime Manager Configuration: In MuleSoft’s Runtime Manager, you can deploy Mule applications to specific regions. For the European deployment, set the region property to Europe (eu-de) for all Mule applications. This ensures that the applications are physically hosted in the European data centers, reducing latency for European users.

Go to Runtime Manager in Anypoint Platform.

Select the application to deploy.

Choose the Region setting and select Europe (eu-de).

Updating Naming Convention:

Naming Convention Update: Change the naming convention to include the region in the application names. The new convention should be {API name}-{environment}-{region} (e.g., Orders-SAPI-dev-eu, Orders-SAPI-prod-eu). This helps in distinguishing applications deployed in different regions.

Update the naming convention during deployment.

Ensure the new naming convention is documented and communicated to all stakeholders.

Communicating the Change:

Stakeholder Communication: Inform all consuming applications and users about the updated naming convention. This ensures that they update their references and configurations accordingly to avoid any disruptions in service.

Documentation: Update any internal documentation to reflect the new naming convention and deployment regions.

Benefits:

Reduced Latency: By deploying the applications in the Europe region, the data proximity to European users will be improved, resulting in lower latency.

Clear Identification: The updated naming convention helps in easily identifying the environment and region of deployment, making management and troubleshooting easier.

References:

MuleSoft Documentation on Deploying to CloudHub

MuleSoft Documentation on Managing Applications in Runtime Manager

Explanation

Correct answer is Untill Successful scope can be implemented while calling backend API's The Until Successful scope repeatedly triggers the scope's components (including flow references) until they all succeed or until a maximum number of retries is exceeded The scope provides option to control the max number of retries and the interval between retries The scope can execute any sequence of processors that may fail for whatever reason and may succeed upon retry

Timeout Attribute:

The timeout attribute in the JMS connector specifies the maximum time allowed for a transaction to be completed. If the transaction does not complete within this specified time, it will be considered a timeout.

Transaction Management:

In the context of an Extended Architecture (XA) transaction, this timeout ensures that if the transaction is not explicitly ended within the defined time, the transaction is rolled back to maintain data consistency.

Implications of Timeout:

If the timeout is exceeded, the JMS message processing is considered unsuccessful, and all operations within the transaction are undone, which helps in avoiding partial updates and maintaining a reliable state.

References:

MuleSoft Documentation on JMS Connector

Understanding XA Transactions

To ensure that data is encrypted both in-transit and at-rest, and to validate incoming requests to the Payment Processing API, the following approach is recommended:

TLS Inbound Policy: Apply a Transport Layer Security (TLS) - Inbound policy in API Manager. This policy ensures that the data is encrypted during transmission and can be decrypted by the API Manager before it reaches the Mule application.

Decryption: With the TLS policy applied, the message payload is decrypted when it is received by the API Manager.

JSON Validation: After decryption, the Mule application can use the JSON Validation module to validate the structure and content of the JSON data. This ensures that the payload conforms to the specified format and contains valid data.

This approach ensures that data is securely transmitted and properly validated upon receipt.

References:

Transport Layer Security (TLS) Policies

JSON Validation Module

Explanation

* Any change in the application will require a restart except when the issue outside the app. For below situations , you would need to redeploy the code after doing necessary changes

-- One of the stored procedures being called by the Mule application has been renamed. In this case, in the Mule application you will have to do changes to accommodate the new stored procedure name.

-- Required redesign of Mule applications to follow microservice architecture principles. As code is changed, deployment is must

-- If the credentials changed and you need to update the connector or the properties.

-- The credentials for accessing the database have been updated and the previous credentials are no longer valid. In this situation you need to restart or redeploy depending on how credentials are configured in Mule application.

* So Correct answer is The database server was unavailable for four hours due to a major outage but is now fully operational again as this is the only external issue to application.