0

You want to ensure exactly-once delivery semantics using a Kafka transactional producer. Which combination of configurations and method calls is correct?

hard🚀 Application Q8 of Q15

Kafka - Message Delivery Semantics

You want to ensure exactly-once delivery semantics using a Kafka transactional producer. Which combination of configurations and method calls is correct?

A

Set <code>transactional.id</code>, skip <code>initTransactions()</code>, call <code>send()</code> and <code>commitTransaction()</code>.

B

Set <code>enable.idempotence=false</code>, call <code>beginTransaction()</code>, then <code>send()</code> and <code>commitTransaction()</code>.

C

Set <code>acks=0</code>, call <code>initTransactions()</code>, then <code>send()</code> and <code>commitTransaction()</code>.

D

Set <code>transactional.id</code>, call <code>initTransactions()</code>, then use <code>beginTransaction()</code>, <code>send()</code>, and <code>commitTransaction()</code>.

Step-by-Step Solution

Solution:

Step 1: Identify required configuration
Exactly-once delivery requires transactional.id and initTransactions() call.
Step 2: Correct method call sequence
Begin transaction, send messages, then commit transaction to ensure atomicity.
Final Answer:
Set transactional.id, call initTransactions(), then use beginTransaction(), send(), and commitTransaction(). -> Option D
Quick Check:
Transactional id + initTransactions() + proper calls = Exactly-once [OK]

Quick Trick: Use transactional.id and initTransactions() for exactly-once [OK]

Common Mistakes:

MISTAKES

Skipping initTransactions() call
Disabling idempotence
Setting acks=0 which reduces durability

Master "Message Delivery Semantics" in Kafka

9 interactive learning modes - each teaches the same concept differently

Learn Why Deep Visual Try Challenge Project Recall Time

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions

More Kafka Quizzes