Search Interview Questions | More than 3000 questions in repository. There are more than 900 unanswered questions. Click here and help us by providing the answer. Have a video suggestion. Click Correct / Improve and please let us know. |
|
| ||||
Apache Kafka - Interview Questions and Answers for 'Apache' - 13 question(s) found - Order By Newest | ||||
| ||||
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 | ||||
| ||||
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 | ||||
| ||||
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 | ||||
| ||||
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 | ||||
| ||||
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 | ||||
| ||||
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 | ||||
| ||||
Ans. We can have duplicate keys within MultiMap whereas we cannot have duplicate keys within Java Util Map. We can have a Map with value as a "collection of values" instead of single value to have a similar function as Multimap. | ||||
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 | ||||
| ||||
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 | ||||
| ||||
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 | ||||
| ||||
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 | ||||
| ||||
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   Asked in 1 Companies basic   frequent | ||||
| ||||
Ans. Hadoop 1.x It supports only MapReduce (MR) processing model. It has limited scaling of nodes. Limited to 4000 nodes per cluster. It has single Namenode to manage the entire namespace. It has Single-Point-of-Failure (SPOF) Works on concepts of slots – slots can run either a Map task or a Reduce task MR has to do both processing and cluster resource management. Hadoop 2.x It supports MR as well as other distributed computing models like Spark, Hama, etc It has better scalability. Scalable up to 10000 nodes per cluster. Works on concepts of containers. Using containers can run generic tasks. It has Multiple Namenode servers manage multiple namespace. YARN does cluster resource management and processing is done using different processing models. | ||||
Help us improve. Please let us know the company, where you were asked this question : | ||||
Like Discuss Correct / Improve   | ||||
| ||||
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   | ||||