10 Most Successful MuleSoft Expert Interview Questions

MuleSoft Expert Interview Questions

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Looking for MuleSoft Expert Interview Questions? Here you can find 10 Most Successful MuleSoft Expert Interview Questions.

MuleSoft’s Anypoint Platform™ is the world’s leading integration platform for SOA, SaaS, and APIs. MuleSoft provides exceptional business agility to companies by connecting applications, data, and devices, both on-premises and in the cloud with an API-led approach. By leveraging the Anypoint Platform, companies can re-architect their SOA infrastructure from legacy systems, proprietary platforms, and custom integration code to create business agility. They can migrate technology infrastructure to the public or private cloud and prioritize the adoption of SaaS applications and other cloud technologies. Source: Mulesoft Official Website

MuleSoft Expert Interview Questions

Q1. What is Mulesoft? For what Mulesoft is used for?

MuleSoft is the most widely used integration platform. Here we will find 2 types of Mule ESB and Cloud Hub for connecting enterprise and SAAS applications in the on-premises and cloud. Mulesoft allows developers to connect applications quickly and easily and it helps in exchanging the data.

Q2. Explain the types of variables in mule?

There are 3 types of variables available in a mule.

  1. Flow Variable
  2. Session Variable
  3. Record Variable

Q3. What is Mule ESB?

Mule ESB is a Java-based ESB (enterprise service bus) and it is the integration platform all the developers can connect to their respective application directly with ESB. Mule ESB uses service-oriented architecture. The main use of Mule ESB is it enables easy integration of existing systems. It can integrate with different technologies that the applications use- Including JMS, Web Services, HTTP, etc.

Q4. What is ESB?

ESB stands for Enterprise Storage bus. It’s a software architecture for middleware and it provides fundamental services for more complex architectures. This is the common Mulesoft Interview Questions which is frequently asked in an interview.

Example: ESB incorporates the features required to implement an SOA(service-oriented architecture ).

Q5. What is the MuleSoft Anypoint platform and where it will be used?

MuleSoft Anypoint Platform of integration products is designed to tie both software as a service (SaaS) and on-premises software.

Q6. What are the main features of Mule ESB? What are the different ESBs in the market?

1)The main features of Mule ESB are::

  1. It is very simple and easy to use-Drag and drops Graphical design
  2. SLA monitoring and API management
  3. High scalability
  4. We can deploy in a One-click cloud or on-premise deployments

2)Different ESB’s in the Market are::

  1. Talend
  2. Mule ESB
  3. JBoss Fuse ESB

Must Read: Top 10 Effective Microsoft Azure Interview Questions

Q7. How will we identify ESB is needed in a project?

Implementation of ESB is not suitable for all the projects. We should analyze is really ESB is required here or not. You need to analyze by considering the below points:

  1. In the project, require 3 or more applications and services to be integrated and there must be a need to communicate between the applications.
  2. If it is plain of interacting with more applications and Services in the future then we can go with Mule ESB because it is highly scalable.
  3. We need to keep cost also in mind before going to ESB implementation

Q8. Explain the difference between Callout and Service Invoke?

  1. Callout: We can call the service using callout or with service invoke. Use the Callout if we need to mediate a message (without calling an intermediate service) and then call a service provider.
  • The Callout provides the simplest model for this configuration.
    Service Invoke: You need to interact with multiple services, and produce an output that combines service responses. The Service Invoke primitive does not switch from request flow to response flow.
  • Use the Service invoke if we need to call an intermediate service.
    Example: We can use an intermediate service to adjust a message or to validate a message externally. The mediation flow contains Service Invoke mediation primitive, and a Callout node that is connected to the service provider there will be no intermediate service.

Q9. What is the full form of SDO and SMO?

  1. SDO: Service Data Object and it represents the Object.
  2. SMO: Service Message object and it is used to represent messages

Q10. Explain about Fan-in and Fan-out?

  1. Fan-In:  Fan-In is always in the flow with Fan-Out and helps in deciding to continue flow execution. The Fan In may only be used in combination with Fan-Out.
  2. Fan-out: We can use the Fan-Out primitive to fire the output terminal once with the input message or to fire the output terminal multiple times. Fan-out can be used as a combination of Fan-Out and Fan-In.

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