Question 1

What is the purpose of Kafka’s 'exactly-once' semantics?

Options :

A : To guarantee that every message is delivered at least twice

B : To ensure messages are processed exactly once without duplication or loss

C : To prevent producers from sending duplicate messages

D : To optimize topic retention settings

Answer: B

Question 2

Which command is used to change topic configurations dynamically?

Options :

A : kafka-configs.sh --alter

B : kafka-topics.sh --alter

C : kafka-rebalance.sh --update

D : kafka-cluster.sh --modify

Answer: A

Question 3

You need to enforce encryption for data in transit in a Kafka cluster. What should you configure?

Options :

A : Enable SSL for broker-to-broker and client communication

B : Use SASL/PLAIN authentication

C : Encrypt messages before sending them to Kafka

D : Enable client-side compression

Answer: A

Question 4

Which authentication method can be used to secure Kafka client connections?

Options :

A : SSL/TLS

B : JWT tokens

C : LDAP authentication

D : OAuth

Answer: A

Question 5

What is the primary advantage of enabling `min.insync.replicas`?

Options :

A : It speeds up message production

B : It improves consumer lag tracking

C : It reduces replication lag

D : It ensures data availability in case of broker failure

Answer: D