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Kafka is an open-source message broker project that is written in Scala programming language and it is an initiative by Apache Software Foundation. The product got popular over time and today it has become one of the leading data processing tools of choice. The reason for the popularity of Kafka is a unique set of features that make it the most suitable choice for data integration. The extensive throughputs and low-latency features make Kafka capable of handling data feeds in real-time. Some of the most highlighting features of data integration tools include – data partitioning, scalability, low-latency, high throughputs etc make it an excellent fit for data integration related use-cases. The popularity of Kafka is the reason why the product has a plethora of job options and career prospects around the tool. Adding Kafka skills to your resume is the perfect way to excel in your profile.
If you are looking to attend a Kafka interview recently, here are the most popular Apache Kafka interview questions and answers to help you in the right way. If you have more interesting ideas then don’t forget to add more questions in the comment section as per your experience.
For the person looking to attend a Kafka interview recently, here are the most popular Kafka interview questions and answers to help you in the right way. Here, we have included the top frequently asked questions with answers to help freshers and the experienced.
Ans:- Kafka is an open-source message broker project that is written in Scala programming language and it is an initiative by Apache Software Foundation. A unique set of features make it the most suitable choice for data integration and one of the leading data processing tools of choice.
Ans:-Some of the most highlighting features of Kafka that make it popular worldwide includes – data partitioning, scalability, low-latency, high throughputs etc. These features are the reason why Kafka has become the most suitable choice for data integration and data processing in the real-time.
Ans:-Messages are stored in partitions and assigned a unique ID to each of them for quick and easy access. That unique number is named as the offset that is responsible to identify each of the messages in the partition.
Read: Difference Between Apache Hadoop and Spark Framework
Ans:-Zookeeper is used to store offset values of messages. There is no alternative to Zookeeper in Kafka. In case, Zookeeper is down then this is not possible to serve any of the client requests.
Ans:-Every partition in Kafka has one main server that is named as “Leader” and one or more non-connected servers that are named as the “Followers”.
Ans:-A Consumer group is made up of one or more consumers that together subscribe to the different topics and fetch data from the brokers.
Ans:-Every partition in Kafka has one main server that plays the role of a leader and one or more non-connected servers that are named as the followers. Here, the leading server sets the permission and the rest of the servers just follow him accordingly. In case, the leading server fails then followers take the responsibility of the main server.
Ans:-Yes, these techniques are queuing, and publish-subscribe. However, Kafka generalizes both of the techniques through consumer groups.
Ans:-Kafka products are more scalable, faster, robust and distributed by design.
Read: An Introduction and Differences Between YARN and MapReduce
Ans:- Broker and server have the meaning in Kafka.
Ans:-It is approx. 1000000 bytes.
Ans:-Well, it is an interesting and advanced concept in Kafka. If the consumer is located in a distant location then you need to optimize the socket buffer size to tune the overall throughput of a remote consumer.
Ans:-Replicating messages is a good practice in Kafka that assures that messages will never lose even if the main server fails.
Ans:-No, we cannot do that.
Ans:-Both products are used to process data in the real-time but Kafka is proven more scalable and ensures durability.
Read: How to install Hadoop and Set up a Hadoop cluster?
Ans:-A producer API exposes the functionalities of all producers through a single API to the client.
Ans:-If there are not enough servers added for load balancing, there comes a situation of queue fullness.
Ans:-Yes, I know. To initiate the Kafka server, you need to initiate the Zookeeper server first then you could fire up the Kafka server.
Ans:-Kafka product is based on a distributed design where one cluster has multiple brokers/servers associated with it. The ‘Topic’ will be divided into plenty of partitions to store the messages and there is one consumer group to fetch the messages from brokers.
With the rising demand for Apache Kafka, you will have plenty of job opportunities with the companies of your dreams, so don’t stop looking & trying. We hope this blog on Kafka interview questions would have given you some insight into what kind of questions you might face. The Kafka interview questions listed here will surely improve your chances so prepare them well and cement your chances of starting a successful Apache Kafka career.
If you are looking for more detailed insight into Kafka related jobs, you can reach out to our career consultants to strengthen your Kafka skills and apt career guidance!
We’d love to hear more Kafka Interview Questions in the comments section, so drop us a comment if you have attended any Kafka interviews!
Vikas Arora loves pursuing excellence through writing and have a passion for technology. He currently writes for JanBaskTraining.com
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Jorge Hall
Hi Team! The blog is really informative but I am facing some confusion in 2-3 questions. Can your team help me understand them?
JanbaskTraining
Glad you found this useful! For more such insights on your favourite topics, do check out JanBask Training Blogs and keep learning with us!
Simon Martinez
I was seeking articles to get some idea of Visual force interview questions and then came across this blog. The blog includes interesting questions with answers. Nice blog to read!
JanbaskTraining
Glad you found this useful! For more such insights on your favourite topics, do check out JanBask Training Blogs and keep learning with us!
Omar Moore
I would recommend this blog to every person who is going to attend VisualForce Interview.
JanbaskTraining
Glad you found this useful! For more such insights on your favourite topics, do check out JanBask Training Blogs and keep learning with us!
Harry
Overall a nice and informative blog, especially for the freshers. The question and answers will help them boost their confidence.
JanbaskTraining
Hello, JanBask Training offers online training to nurture your skills and make you ready for an amazing career run. Please write to us in detail at [email protected]. Thanks!
JanbaskTraining
Glad you found this useful! For more such insights on your favourite topics, do check out JanBask Training Blogs and keep learning with us!
Paul Wilson
Are you sure that these questions can help me clear the interview?
JanbaskTraining
Hello, JanBask Training offers online training to nurture your skills and make you ready for an amazing career run. Please write to us in detail at [email protected]. Thanks!
Brian Taylor
Want to grow my career as AWS Sysops Administrator, pls guide me on how to start?
JanbaskTraining
Hello, JanBask Training offers online training to nurture your skills and make you ready for an amazing career run. Please write to us in detail at [email protected]. Thanks!
Kyle Lee
Nice question guide!
JanbaskTraining
Hello, JanBask Training offers online training to nurture your skills and make you ready for an amazing career run. Please write to us in detail at [email protected]. Thanks!
Beckham Allen
Great efforts, looking for such a question for the last one month. Thanks
JanbaskTraining
Hello, JanBask Training offers online training to nurture your skills and make you ready for an amazing career run. Please write to us in detail at [email protected]. Thanks!
Jaden Hernandez
Can you please guide me with more such study stuff?
JanbaskTraining
Hello, JanBask Training offers online training to nurture your skills and make you ready for an amazing career run. Please write to us in detail at [email protected]. Thanks!
Bradley Thompso
Few answers can be explained in a better way but, still a helpful post.
JanbaskTraining
Thank you so much for your comment, we appreciate your time. Keep coming back for more such informative insights. Cheers :)
Riley Walker
What a nice motivational blog, I love it!
JanbaskTraining
Thank you so much for your comment, we appreciate your time. Keep coming back for more such informative insights. Cheers :)
Ronan Wright
Career transition at 50 is a dearing decision, not every has that courage,a real salute to these people.
JanbaskTraining
Thank you so much for your comment, we appreciate your time. Keep coming back for more such informative insights. Cheers :)
Holden White
It's true, learning has no age bar.
JanbaskTraining
Thank you so much for your comment, we appreciate your time. Keep coming back for more such informative insights. Cheers :)
Jorge Hall
One of the best motivational posts I have ever read.
Francisco Baker
Apart from the motivational part, ideas are also good. Must read!
JanbaskTraining
Hello, JanBask Training offers online training to nurture your skills and make you ready for an amazing career run. Please write to us in detail at [email protected]. Thanks!
Brian Taylor
The article clearly states that you can do anything at any age. Nice blog team. Keep up the good work.
JanbaskTraining
Hello, JanBask Training offers online training to nurture your skills and make you ready for an amazing career run. Please write to us in detail at [email protected]. Thanks!
Cayden Young
One of the best positive and motivational blogs I have gone through so far.
JanbaskTraining
Hello, JanBask Training offers online training to nurture your skills and make you ready for an amazing career run. Please write to us in detail at [email protected]. Thanks!
Brian Taylor
I am impressed with the ideas mentioned in the blog. I have shared the link with my uncle. He's in his 40's and is depressed that now he cannot pursue his career further.
JanbaskTraining
Hello, JanBask Training offers online training to nurture your skills and make you ready for an amazing career run. Please write to us in detail at [email protected]. Thanks!
Paul Wilson
Nice blog. Must share with everyone.
JanbaskTraining
Hello, JanBask Training offers online training to nurture your skills and make you ready for an amazing career run. Please write to us in detail at [email protected]. Thanks!