Why topics organize messages in Kafka - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a Kafka topic named 'orders'.

Kafka

bin/kafka-topics.sh --create --topic [1] --bootstrap-server localhost:9092

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

Aevents

Bmessages

Corders

Dlogs

Attempts:

3 left

💡 Hint

Common Mistakes

Using a generic name like 'messages' instead of a specific topic name.

Leaving the topic name blank.

The topic name 'orders' is used to organize messages related to orders in Kafka.

2fill in blank

medium

Complete the code to produce a message to the 'orders' topic.

Kafka

echo 'order_id=123' | bin/kafka-console-producer.sh --topic [1] --bootstrap-server localhost:9092

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

Aorders

Blogs

Cmessages

Devents

Attempts:

3 left

💡 Hint

Common Mistakes

Sending messages to the wrong topic name.

Typos in the topic name.

The message is sent to the 'orders' topic to keep order-related messages organized.

3fill in blank

hard

Fix the error in the command to consume messages from the 'orders' topic.

Kafka

bin/kafka-console-consumer.sh --topic [1] --bootstrap-server localhost:9092 --from-beginning

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

Aorders

Bmessages

Clogs

Devents

Attempts:

3 left

💡 Hint

Common Mistakes

Using a topic name that does not exist.

Misspelling the topic name.

Consuming from the correct topic 'orders' ensures you get the right messages.

4fill in blank

hard

Fill both blanks to create a topic with 3 partitions and a replication factor of 2.

Kafka

bin/kafka-topics.sh --create --topic orders --partitions [1] --replication-factor [2] --bootstrap-server localhost:9092

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

A3

B1

C2

D4

Attempts:

3 left

💡 Hint

Common Mistakes

Setting replication factor higher than the number of brokers.

Using zero or negative numbers.

Partitions divide the topic for parallelism; replication factor ensures fault tolerance.

5fill in blank

hard

Fill all three blanks to produce a message with key 'user1' and value 'login' to the 'user-events' topic.

Kafka

echo '[1]:[2]' | bin/kafka-console-producer.sh --topic [3] --property parse.key=true --property key.separator=: --bootstrap-server localhost:9092

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

Auser1

Blogin

Cuser-events

Dlogout

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up key and value positions.

Using the wrong topic name.

The key 'user1' and value 'login' are sent to the 'user-events' topic to organize user activity messages.