Fanout exchange (broadcast) in RabbitMQ - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a fanout exchange named 'logs'.

RabbitMQ

channel.exchange_declare(exchange='logs', exchange_type=[1])

Drag options to blanks, or click blank then click option'

Afanout

Bdirect

Ctopic

Dheaders

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'direct' or 'topic' instead of 'fanout' for broadcast.

The fanout exchange type broadcasts messages to all queues bound to it.

2fill in blank

medium

Complete the code to bind a queue named 'queue1' to the 'logs' fanout exchange.

RabbitMQ

channel.queue_bind(queue='queue1', exchange='logs', routing_key=[1])

Drag options to blanks, or click blank then click option'

A'info'

B'logs'

C''

D'queue1'

Attempts:

3 left

💡 Hint

Common Mistakes

Using a routing key other than empty string for fanout exchange binding.

For fanout exchanges, the routing key is ignored, so it is set to an empty string ''.

3fill in blank

hard

Fix the error in publishing a message to the 'logs' fanout exchange.

RabbitMQ

channel.basic_publish(exchange='logs', routing_key=[1], body='Hello World!')

Drag options to blanks, or click blank then click option'

A'queue1'

B''

C'logs'

D'info'

Attempts:

3 left

💡 Hint

Common Mistakes

Using a non-empty routing key when publishing to a fanout exchange.

When publishing to a fanout exchange, the routing key is ignored and should be an empty string ''.

4fill in blank

hard

Fill both blanks to declare a durable fanout exchange named 'broadcast' and bind 'queue2' to it.

RabbitMQ

channel.exchange_declare(exchange='broadcast', exchange_type=[1], durable=[2])
channel.queue_bind(queue='queue2', exchange='broadcast', routing_key='')

Drag options to blanks, or click blank then click option'

Afanout

Bdirect

CTrue

DFalse

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'direct' instead of 'fanout' exchange type.

Setting durable to False when persistence is needed.

The exchange type must be 'fanout' for broadcast. Setting durable to True makes the exchange survive server restarts.

5fill in blank

hard

Fill all three blanks to publish a persistent message 'Update' to the 'broadcast' fanout exchange with empty routing key.

RabbitMQ

channel.basic_publish(exchange='broadcast', routing_key=[1], body='Update', properties=pika.BasicProperties(delivery_mode=[2], content_type=[3]))

Drag options to blanks, or click blank then click option'

A'queue2'

B''

C'text/plain'

D2

Attempts:

3 left

💡 Hint

Common Mistakes

Using non-empty routing key for fanout exchange.

Not setting delivery_mode to 2 for persistence.

For fanout exchange, routing_key is empty string ''. delivery_mode=2 makes the message persistent. content_type='text/plain' sets the message type.