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APACHE NIFI INTERVIEW QUESTIONS
APACHE NIFI INTERVIEW QUESTIONS
4.4 (2240)5,840 learners20 lessons40m
Curriculum
Topic
- 01 - What is back pressure in NiFi, and how do you configure it on a connection1:52
- 02 - What is a FlowFile, and what's the difference between its attributes (metadata) and its content2:07
- 03 - Explain the core building blocks processor, connection, relationship, and process group1:50
- 04 - What are the three NiFi repositories (FlowFile, Content, Provenance), and what does each store2:00
- 05 - What is a Controller Service, and how does it differ from a processor Give an example1:57
- 06 - Does NiFi use a master-slave architecture Explain how a NiFi cluster is coordinated2:08
- 01 - What is back pressure in NiFi, and how do you configure it on a connection1:52
- 02 - Scenario A producer processor is much faster than the downstream consumer and queues are filling up. What happ2:02
- 03 - What is a backpressure deadlock, and how would you resolve one (e.g., a full failure-retry loop)1:50
- 04 - What is FlowFile Expiration, and when would you use it1:53
- 05 - What are prioritizers, and what is NiFi's default prioritization behavior2:04
- 06 - How does NiFi handle errors — walk through what happens when a processor fails to process a FlowFile2:14
- 07 - What is the difference between routing a FlowFile to a failure relationship, retrying it, and terminating it2:24
- 08 - How does NiFi guarantee data delivery and recover after a crash (write-ahead log repositories)1:52
- 09 - What is data provenance, and why is it one of NiFi's most valuable features1:50
- 10 - What is a Reporting Task, and how does it help with monitoring large queues or overall flow health1:47
- 11 - What is NiFi Registry, and what problem does it solve when promoting flows across devtestprod1:58
- 12 - What is the difference between content-based processors (e.g., SplitText) and record-based processors (e.g., C1:59
- 13 - What are Record Readers and Record Writers, and how do schemas fit in2:13
- 14 - What is NiFi Expression Language, and give an example of where you'd use it on FlowFile attributes2:09