Apache Camel Interview Questions

Apache Camel Interview Questions | Freshers & Experienced

  • Subrata Dutta
  • 15th Nov, 2019

Apache Camel Interview Questions

Q1. What is Apache Camel?

Apache Camel is used to integrating the EIP. Companies really have a lot of data exchange daily and for that purpose, even multiple applications are integrated. This is simply done to make the process in a standard format. It is an open-source framework for message-oriented operations. It is basically the implementation of the Enterprise integration patterns (EIP), to the Java code. It simplifies the method of the complex integration process.

Q2. What is routing in Apache Camel?

Q3. What is EIP in Apache Camel?

The integration of applications for the data exchanges that take place in a company is really complex. For that purpose, the enterprise integration patterns (EIP), has become the best and standard method to practice in this case. The Apache Camel just uses to implement this EIP’s to the Java code that too really easily and with great simplicity. It is really helpful for the developers with its rule-based routing and also the mediation engine.

Q4. What is Seda in camel?

It is known as the Stage event-driven architecture (SEDA). This basically divides the workflow into stages and then it just follows the queue so that the load is not on the single area. This also makes the task easy and simple to complete. It is also fast in response. It allows you to join routes or say multiple routes using the simple queue. It is a very simple replacement option for the JMS queues.

Q5. What is Processor in Apache Camel?

Here, with the help of this processor, you get complete access to the exchange process or the message exchange that takes place. It allows you to write in the routes of the camel and also you can reuse the existing file. Also, the custom message processors also provide you with a platform where you can just do anything while working on Java. Herewith the help of this processor the message translator and also the consumer message exchange both can be implemented.

Q6. What are DSLs in Apache Camel?

It is basically a language that is used in Java known as the Domain-specific language (DSL). It just helps you to create the EIP or routes and used in any domain-specific language. It is designed for certain specific tasks.

  • Java DSL: Here it basically uses the developer’s style. It is a Java-based DSL.
  • Blueprint XML: It is an XML based DSL and it follows the OSGi Blueprint XML files.

Q7. How to rollback transaction in Apache Camel DSL?

Q8. Enlist few good uses for Apache Camel?

Q9. What is CamelContext?

Q10. What is RouterContext?

Q11. What is registry in Apache Camel?

Camel registries are basically used to locate the existing files. The beans that are used in the Camel routes are basically used for using the existing components that are already present in the routes. It is better to use a lightweight and at the same time simple programming tools in the camel routes. So in this all process it is necessary to register the beans initially that will help you anytime to locate your file and with camel, the registry is already done automatically.

Q12. What is name of default registry in Apache Camel?

Q13. Enlist the error handlers provided by Apache Camel?

Q14. What is use of stream component in Apache Camel?

Q15. What Is Camel Exchange?

Camel Exchange is the messaging process of exchanging messages which involves a request message and its corresponding reply or an exception message. It allows you to send the message and can also receive the reply to the same. It has a unique ID that gives you permission for the exchange. It also has a pattern called the MEP which just can denote you whether you can just send the message or can reply also using the InOnly like for example the JMS messaging and the InOut messaging like the HTTP based transports.

About Author :

  • Author of Apache Camel Interview Questions

    Subrata Dutta

    Subrata Dutta is IT Project Manager from Noida, Uttar Pradesh, India. He is an exceptional team player who is proactive, efficient, methodical and has strong interpersonal & people management skills.

Leave A Comment :

Valid name is required.

Valid name is required.

Valid email id is required.