Apache Kafka - Interview Questions and Answers for 'Apache' - 13 question(s) found - Order By Newest Q1. Is Apache an application or Web server ? Anonymous
Ans. Web server. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve apache web server j2ee Q2. How to make sure that a string contains only Numerals ? Core Java Admin
Ans. We can use NumberUtils.isNumber which is a part of apache commons package. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve java apache commons numberutils numberutils.isnumber Q3. Can we have multiple threads consuming message stream from a single partition ?
Ans. Yes, by having multiple Consumer Groups. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve apache kafka kafka kafka consumer kafka topic partitions bigdata consumer group Q4. Can we have multiple threads consuming messages from a single partition if we have single Consumer Group ?
Ans. No, we can only have max 1 thread per partition in a single Consumer Group. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve apache kafka kafka kafka consumer kafka topic partitions bigdata consumer group Q5. If we have more threads than partitions in a kafka consumer, How can we model it efficiently ?
Ans. We will have to use multiple consumer groups in that case as threads will remain idle if we use single consumer group. A more sophisticated algorithm could be required with multiple groups if we have to ensure the order of consumption. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve apache kafka kafka kafka consumer kafka topic partitions bigdata consumer group Q6. What is Apache Cassandra ? Cassandra 2017-05-22 17:15:23
Ans. Apache Cassandra is a free and open source distributed NoSQL database management system designed to handle large amounts of data providing high availability with no single point of failure. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve apache cassandra cassandra Q7. What is the difference between Java SE Map and Apache Commons MultiMap ? How can we implement functionality similar to multimap using Java SE map ? Core Java 2017-07-23 13:21:10
Ans. We can have duplicate keys within MultiMap whereas we cannot have duplicate keys within Java Util Map. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Apache commons multimap map vs multimap Q8. How can we make sure that we don't receive duplicate messages from the Kafka Topic ? Apache Kafka 2017-08-17 11:00:15
This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve kafka Q9. How can we makes sure that message has been consumed properly from Kafka ? Apache Kafka 2017-08-17 15:29:49
Ans. We can have a mechanism to send the conformation back to Kafka so that Kafka can do offset only after receiving the confirmation. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve apache kafka kafka kafka consumer Do you think these are the Best Java Frameworks ? OpenXava SPRING MVC Apache Stripes Check everything Click Here
Q10. Kafka has a deliver atleast once default Policy, What are the other policies that can be configured with Kafka ? Apache Kafka 2017-08-18 09:39:01
Ans. Exactly once and At Max Once Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve kafka Q11. What are the different delivery policies in Apache Kafka ? Apache Kafka 2018-05-03 06:17:38
Ans. Exactly once , At least once , At max once Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve One Click Retail basic frequent Q12. Difference between hadoop 1.x and 2.x? Apache Hadoop 2018-09-24 08:21:35
This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Q13. Difference between group and cogroup? Apache Hadoop 2018-09-24 08:21:49
This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve
3187 questions in repository.
Discuss 
apache web server j2ee
One Click Retail 
basic 
frequent
OpenXava
SPRING MVC