Apache Kafka MCQ Questions with answers and solutions Page 27

Q. Kafka topics can be configured for cleanup using:

(A) log.cleanup.policy
(B) cleanup.schedule
(C) topic.cleaner
(D) delete.policy

💬 Discuss

✅ Correct Answer: (A) log.cleanup.policy

Explanation: log.cleanup.policy can be set to 'delete' or 'compact' for data cleanup.

Published by Mr. Dubey ⭐ 110.47K Points at 13-Jun-2025 02:31 pm in Apache Kafka

Q. Which Kafka feature allows integration with relational databases?

(A) Kafka Streams
(B) Kafka Producer API
(C) Kafka Connect JDBC connector
(D) Kafka MirrorMaker

💬 Discuss

✅ Correct Answer: (C) Kafka Connect JDBC connector

Explanation: Kafka Connect JDBC connector is used to pull/push data from/to relational databases.

Published by Mr. Dubey ⭐ 110.47K Points at 13-Jun-2025 02:31 pm in Apache Kafka

Q. Kafka's ISR list includes:

(A) Only leader partition
(B) All consumers
(C) In-sync replicas
(D) Producers

💬 Discuss

✅ Correct Answer: (C) In-sync replicas

Explanation: ISR stands for In-Sync Replicas, which are fully up-to-date replicas.

Published by Mr. Dubey ⭐ 110.47K Points at 13-Jun-2025 02:31 pm in Apache Kafka

Q. Kafka can encrypt messages using:

(A) AES encryption in topics
(B) SSL/TLS for data in transit
(C) Built-in message secrets
(D) Kafka safe mode

💬 Discuss

✅ Correct Answer: (B) SSL/TLS for data in transit

Explanation: Kafka uses SSL/TLS for encrypting data in transit between clients and brokers.

Published by Mr. Dubey ⭐ 110.47K Points at 13-Jun-2025 02:31 pm in Apache Kafka

Q. Kafka can be deployed using:

(A) On-premise only
(B) Cloud only
(C) Both cloud and on-premise
(D) Mobile devices

💬 Discuss

✅ Correct Answer: (C) Both cloud and on-premise

Explanation: Kafka is flexible and can be deployed on cloud platforms or on-premise infrastructure.

Published by Mr. Dubey ⭐ 110.47K Points at 13-Jun-2025 02:31 pm in Apache Kafka

Q. What is the default number of partitions for a Kafka topic?

(A) 0
(B) 1
(C) 3
(D) 5

💬 Discuss

✅ Correct Answer: (B) 1

Explanation: If not specified, Kafka creates a topic with 1 partition by default.

Published by Mr. Dubey ⭐ 110.47K Points at 13-Jun-2025 02:31 pm in Apache Kafka

Q. Kafka replication ensures:

(A) Increased speed
(B) Redundancy and fault tolerance
(C) Better compression
(D) Consumer group expansion

💬 Discuss

✅ Correct Answer: (B) Redundancy and fault tolerance

Explanation: Replication ensures messages survive broker failures by duplicating data.

Published by Mr. Dubey ⭐ 110.47K Points at 13-Jun-2025 02:31 pm in Apache Kafka

Q. Kafka relies on which data structure for its core storage?

(A) Queue
(B) Tree
(C) Log
(D) Heap

💬 Discuss

✅ Correct Answer: (C) Log

Explanation: Kafka is fundamentally a distributed commit log system.

Published by Mr. Dubey ⭐ 110.47K Points at 13-Jun-2025 02:31 pm in Apache Kafka

Q. In Kafka, messages are immutable. This means:

(A) They can be edited anytime
(B) They are encrypted automatically
(C) They cannot be changed once written
(D) They are deleted after consumption

💬 Discuss

✅ Correct Answer: (C) They cannot be changed once written

Explanation: Once a message is written to Kafka, it cannot be modified.

Published by Mr. Dubey ⭐ 110.47K Points at 13-Jun-2025 02:31 pm in Apache Kafka

Q. Kafka ensures scalability by using:

(A) Centralized broker management
(B) Topic filtering
(C) Partitioning and horizontal scaling
(D) Single-threaded consumers

💬 Discuss

✅ Correct Answer: (C) Partitioning and horizontal scaling

Explanation: Kafka uses partitioning to distribute load across brokers and consumers.

Published by Mr. Dubey ⭐ 110.47K Points at 13-Jun-2025 02:31 pm in Apache Kafka

Apache Kafka MCQs with answers Page - 27

Q. Kafka topics can be configured for cleanup using:

Q. Which Kafka feature allows integration with relational databases?

Q. Kafka's ISR list includes:

Q. Kafka can encrypt messages using:

Q. Kafka can be deployed using:

Q. What is the default number of partitions for a Kafka topic?

Q. Kafka replication ensures:

Q. Kafka relies on which data structure for its core storage?

Q. In Kafka, messages are immutable. This means:

Q. Kafka ensures scalability by using:

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