To allow consumers in a group to resume at the previously committed offset, I need to set the proper value for...
Answer(s): C
Setting a group.id that's consistent across restarts will allow your consumers part of the same group to resume reading from where offsets were last committed for that group
A Zookeeper ensemble contains 5 servers. What is the maximum number of servers that can go missing and the ensemble still run?
majority consists of 3 zk nodes for 5 nodes zk cluster, so 2 can fail
A consumer sends a request to commit offset 2000. There is a temporary communication problem, so the broker never gets the request and therefore never responds. Meanwhile, the consumer processed another batch and successfully committed offset 3000. What should you do?
Answer(s): D
In this case, because the offset 3000 has been committed and all the messages between 0 and 3000 have all been processed, it is okay not to have committed offset 2000. The right answer is to do "nothing", this behaviour is acceptable
Your topic is log compacted and you are sending a message with the key K and value null. What will happen?
Answer(s): A
Sending a message with the null value is called a tombstone in Kafka and will ensure the logcompacted topic does not contain any messages with the key K upon compaction
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Testbear commented on June 13, 2023 please upload ITALY upvote
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