Cloudera
CCD-333 · Question #47
CCD-333 Question #47: Real Exam Question with Answer & Explanation
Sign in or unlock CCD-333 to reveal the answer and full explanation for question #47. The question stem and answer options stay visible for context.
Question
How does the NameNode detect that a DataNode has failed?
Options
- AThe NameNode does not need to know that a DataNode has failed.
- BWhen the NameNode fails to receive periodic heartbeats from the DataNode, it considers the
- CThe NameNode periodically pings the datanode. If the DataNode does not respond, the
- DWhen HDFS starts up, the NameNode tries to communicate with the DataNode and considers
Unlock CCD-333 to see the answer
You've previewed enough free CCD-333 questions. Unlock CCD-333 for full answers, explanations, the timed quiz mode, progress tracking, and the master PDF. Question stem and options stay visible so you can still see what's on the exam.