Message acknowledgment in RabbitMQ - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to acknowledge a message in RabbitMQ using the channel.

RabbitMQ

channel.[1](delivery_tag=method.delivery_tag)

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

Areject

Bconsume

Cbasic_nack

Dbasic_ack

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'reject' instead of 'basic_ack' causes the message to be rejected.

Using 'consume' is for receiving messages, not acknowledging.

The basic_ack method tells RabbitMQ that the message was received and processed successfully.

2fill in blank

medium

Complete the code to reject a message and requeue it in RabbitMQ.

RabbitMQ

channel.basic_reject(delivery_tag=method.delivery_tag, requeue=[1])

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

ATrue

BNone

CFalse

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Using False will discard the message instead of requeuing.

Using None causes a type error.

Setting requeue=True tells RabbitMQ to put the message back to the queue for redelivery.

3fill in blank

hard

Fix the error in the code to negatively acknowledge multiple messages at once.

RabbitMQ

channel.basic_nack(delivery_tag=method.delivery_tag, multiple=[1])

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

ATrue

BNone

CFalse

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Using False only nacks a single message.

Using None causes a type error.

Setting multiple=True negatively acknowledges all messages up to the given delivery tag.

4fill in blank

hard

Fill both blanks to consume messages with manual acknowledgment enabled.

RabbitMQ

channel.basic_consume(queue='task_queue', on_message_callback=callback, auto_ack=[1], [2]='task_queue')

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

AFalse

BTrue

Cqueue

Dconsumer_tag

Attempts:

3 left

💡 Hint

Common Mistakes

Setting auto_ack=True disables manual ack.

Using queue instead of consumer_tag for the second blank.

Setting auto_ack=False enables manual acknowledgment. The consumer_tag identifies the consumer.

5fill in blank

hard

Fill both blanks to create a dictionary comprehension that filters messages with priority greater than 5 and acknowledges them.

RabbitMQ

acknowledged = {msg_id:priority for msg_id, priority in messages.items() if priority [1] 5 and channel.basic_ack(delivery_tag=[2])}

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

A:

B>

Cmsg_id

D,

Attempts:

3 left

💡 Hint

Common Mistakes

Using ',' instead of ':' in dictionary comprehension.

Using '<' instead of '>' for filtering priority.

Using wrong variable name for delivery tag.

The dictionary comprehension uses ':' to map keys to values, filters priorities greater than 5, and acknowledges each message by its delivery tag.