RabbitMQ Interview Questions and Answers

Here are some frequently asked RabbitMQ interview questions. If you have no idea what is RabbitMQ then check below articles on RabbitMQ and then continue from here.

What is RabbitMQ ?
What is Exchange, Queue and Consumer ?

1) What is RabbitMQ ?
Ans - RabbitMQ is an open source message broker software which implements the Advanced Message Queuing Protocol (AMQP). It is also called as message-oriented middleware. RabbitMQ is written in Erlang programming language. RabbitMQ is built on the Open Telecom Platform framework for clustering.

2) What is Exchange in RabbitMQ ?
Ans - Exchange in RabbitMQ routes the messages to different queues based on binding of queues with exchange.

3) What are different types of Exchanges in RabbitMQ ?
Ans - Mainly there are 4 types of exchanges in RabbitMQ. 1) Direct Exchange 2) Fanout Exchange 3) Headers Exchange and 4) Topic Exchange.

4) What is routing key in RabbitMQ ?
Ans - It is an attribute of message. When message comes from producer exchange checks for routing key and based on that it routes the message to queues.

5) What is binding ?
Ans - It is link OR connection between exchange and queue. For exchange to route the message to particular queue that queue should be bound to exchange with routing key or headers.

6) What is Fanout Exchange ?
Ans - Fanout exchange routes the messages to all queues which are bound to it. Say if there are 5 queues bound to Fanout Exchange then when message comes to Fanout Exchange it will go to all 5 queues. It is kind of publish-subscribe.

7) What is Direct Exchange ?
Ans - Direct Exchange routes the message based on routing key. When message comes to Direct Exchange it look for the routing key along with message and then it compares to routing keys for queues which are bound to it. If exact match is there then it routes the message to the queue.

8) What is Erlang ? Do we need it for RabbitMQ ?
Ans - Erlang is a general-purpose, concurrent, functional programming language, as well as a garbage-collected runtime system. The RabbitMQ server is written in the Erlang programming language and is built on the Open Telecom Platform framework for clustering. To use RabbitMQ we must need to have Erlang installed.

If you want to learn more about RabbitMQ and its practical implementation with Java, Spring Boot and Spring MVC then just CLICK HERE

If you want to learn more about RabbitMQ and its practical implementation with PHP then just CLICK HERE

You can checkout other RabbitMQ articles below.

What is RabbitMQ ?
What is Exchange, Queue and Consumer ?



0 Comments