Most frequently asked Camunda Interview Questions

1. What is the meaning of Camunda?
2. What are the components of Camunda?
3. What is BPMN?
4. What is a Business Process?
5. What is Camunda modeler?
6. What is Camunda Cockpit?
7. How can we start camunda process in the suspended state?
8. What are Gateways in Camunda?
9. Name the types of gateways in Camunda?
10. What is Camunda custom form field type?
11. What is versioning in Camunda?
12. Can we execute batch scripts in camunda?

What is the meaning of Camunda?

Camunda is an open source workflow based on Java based framework.It creates workflow and decision models by operating deployed models in production, also allowing users for executing workflow tasks assigned to them.
Camunda can also be used as a standalone process engine server inside the Java application, it offers non Java developers a REST API and all the dedicated clients libraries for building applications connecting to a remote workflow engine.

What are the components of Camunda?

The components of Camunda are as follows:

• Remote Engine Distribution.
• Shared Engine Distribution. Tomcat.
• Camunda Platform RPA Bridge.

What is BPMN?

BPMN (Business Process Model and Notation) is a graphical representation for business processes in a business model, it was developed by the Business Process Management Initiative.
It is visual modeling language for business analysis applications and also specify enterprise workflows.

What is a Business Process?

Business Process is a sequence of tasks that are repeatable in order if executed by humans or systems for achieving a business goal.It can process significantly for improving the visibility and agility of a business logic.

What is Camunda modeler?

A modeler is a desktop application for modeling all the workflows of BPMN and DMN decision, allowing developers work together on the same diagrams.It supports BPMN 2.0 and DMN 1.3.

What is Camunda Cockpit?

Camunda Cockpit is used for operations and monitoring.It provides access for deploying BPMN processes and DMN decisions also allows searching, running and ending instances and performing operations.
Cockpit is extensible allowing it to be extended through plugins.

How can we start camunda process in the suspended state?

We can start the process with the following code:

runtimeService.createProcessInstanceByKey("process-key")
            .businessKey("some-business-key")
            .setVariables(vars)
            .startBeforeActivity("xxx")
            .execute();

What are Gateways in Camunda?

Gateways are decisions that can help in adjusting a path of the flow based on a certain conditions.

Name the types of gateways in Camunda?

Exclusive gateway.
Event-based gateway.
Parallel gateway.
Parallel event-based gateway.
Inclusive gateway.
Complex gateway.

What is Camunda custom form field type?

if(isEnum(formField)) {
  // <select ...>
  renderSelectBox(formField, documentBuilder);

} else if (isDate(formField)){

  renderDatePicker(formField, documentBuilder);

} else {
  // <input ...>
  renderInputField(formField, documentBuilder);

}

What is versioning in Camunda?

Versioning helps in the process of checking the changes in versions.It will register deployment as a new version of the defination, it will continue to run on the basis of the version they started with and will be spawned default by the latest version of the defination.
We can start a process instance :
By Key - helps in starting the instance of the latest deployed version of the process.
By id - helps in the deploying process with the database id.

Can we execute batch scripts in camunda?

We can execute batch scripts in camunda.Heres an example of a batch script:

call java -jar custom.jar someParameters