Intelligent Apache Kafka Test Quiz
Kafka is a registered trademark of Apache Software Foundation; it is one of the most widely used tools for building steaming apps, real-time data pipelines, and for processing streams. Now, let's see how knowledgeable you are when it comes to Apache Kafka.
Questions and Answers
- 1.
In which language is Kafka written?
- A.
Scala
- B.
Groovy
- C.
Python
- D.
Groovy
Correct Answer
A. ScalaExplanation
Kafka is written in Scala. Scala is a programming language that runs on the Java Virtual Machine (JVM) and is known for its concise syntax and strong support for functional programming. Kafka, which is a distributed streaming platform, was initially developed at LinkedIn and later open-sourced. The choice of Scala as the language for Kafka's implementation was influenced by its compatibility with the JVM and its ability to handle the high-performance requirements of real-time data streaming.Rate this question:
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- 2.
Which of the following can be referred to as a publish-subscribe messaging system?
- A.
Scala
- B.
Groovy
- C.
KnouckoutJS
- D.
Kafka
Correct Answer
D. KafkaExplanation
Kafka can be referred to as a publish-subscribe messaging system. Kafka is a distributed streaming platform that allows multiple producers to write data to multiple consumers in a publish-subscribe fashion. It provides a scalable and fault-tolerant architecture for real-time data streaming, making it suitable for use cases such as event sourcing, data pipelines, and real-time analytics. Kafka's publish-subscribe model allows messages to be broadcasted to multiple subscribers, enabling efficient and decoupled communication between different components of a system.Rate this question:
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- 3.
What is referred to as a broker in Kafka?
- A.
Subscriber
- B.
Server
- C.
Zookeeper
- D.
Message
Correct Answer
B. ServerExplanation
In Kafka, a broker refers to a server. A Kafka cluster consists of multiple brokers, each acting as a server that stores and manages the Kafka topics, partitions, and messages. The brokers are responsible for handling the publish and subscribe requests from clients, as well as replicating and distributing the data across the cluster. Therefore, the correct answer is Server.Rate this question:
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- 4.
Which amongst the following is used to communicate between two nodes?
- A.
Server
- B.
Zookeeper
- C.
Broker
- D.
Message
Correct Answer
B. ZookeeperExplanation
Zookeeper is used to communicate between two nodes. Zookeeper is a centralized service that helps in maintaining configuration information, naming, providing distributed synchronization, and providing group services. It acts as a coordination service for distributed systems, allowing nodes to communicate and synchronize with each other. Therefore, Zookeeper is the correct answer for this question.Rate this question:
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- 5.
What is the maximum message size a Kafka server can receive?
- A.
1,000,000 bytes
- B.
10,000,000 bytes
- C.
100,000,000 bytes
- D.
1,000,000,000 bytes
Correct Answer
A. 1,000,000 bytesExplanation
The maximum message size a Kafka server can receive is 1,000,000 bytes.Rate this question:
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- 6.
How many traditional methods of message transfer are available in Kafka?
- A.
1
- B.
2
- C.
3
- D.
4
Correct Answer
B. 2Explanation
Kafka provides two traditional methods of message transfer. These methods include the producer-consumer model and the publish-subscribe model. In the producer-consumer model, messages are sent from a producer to one or more consumers. In the publish-subscribe model, messages are published to topics and then consumed by one or more subscribers. These two methods allow for flexible and scalable message transfer within Kafka.Rate this question:
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- 7.
Queuing is a method of which of these?
- A.
Apache Kafka
- B.
Traditional message transfer
- C.
Zookeeper
- D.
Cluster
Correct Answer
B. Traditional message transferExplanation
Queuing is a method used in traditional message transfer. It involves storing messages in a queue and processing them in the order they were received. This method ensures that messages are delivered reliably and in the correct sequence. Apache Kafka, Zookeeper, and Cluster are not specifically related to queuing, but rather serve different purposes in distributed systems.Rate this question:
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- 8.
Which organization originally developed Kafka?
- A.
Amazon
- B.
Linkedln
- C.
Goggle
- D.
Microsoft
Correct Answer
B. LinkedlnExplanation
Linkedln is the correct answer because it was the organization that originally developed Kafka. Kafka was created by a team of engineers at Linkedln to handle their real-time data processing needs. It is a distributed streaming platform that is widely used for building real-time data pipelines and streaming applications.Rate this question:
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- 9.
What major role does a Kafka Producer API play?
- A.
It is responsible for messaging
- B.
It helps to communicate between two nodes
- C.
It is used to commit offset
- D.
It is responsible for covering two producers
Correct Answer
D. It is responsible for covering two producers -
- 10.
Why is replication necessary in Kafka? Because it ensures that...
- A.
A published message will not be lost
- B.
A published message will not be saved
- C.
A published message will not be deleted
- D.
A published message will not be sent
Correct Answer
A. A published message will not be lostExplanation
Replication is necessary in Kafka because it ensures that a published message will not be lost. By replicating the data across multiple Kafka brokers, even if one broker fails, the data can still be accessed and consumed from other replicas. This provides fault tolerance and high availability, as it prevents data loss in case of failures or crashes.Rate this question:
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