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  1. Categories >> Software >> Big Data >> Hadoop >> Apache HDFS Hadoop Distributed File System
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Apache HDFS Hadoop Distributed File System Interview Questions
Questions Answers Views Company eMail

What is hdfs block size?

 57

How hdfs is different from traditional file systems?

 49

How is hdfs block size different from traditional file system block size?

 50

How data or a file is written into hdfs?

 52

What is a namenode in hadoop?

 52

What is secondary namenode?

 54

What do you mean by meta data in hdfs? List the files associated with metadata.

 32

Explain the hdfs architecture and list the various hdfs daemons in hdfs cluster?

 47

Can you modify the file present in hdfs?

 87

Define data integrity?

 33

What do you mean by the high availability of a namenode? How is it achieved?

 37

Hdfs stores data using commodity hardware which has higher chances of failures. So, how hdfs ensures the fault tolerance capability of the system?

 31

Define hadoop archives?

 27

What is secondary namenode? Is it a substitute or back up node for the namenode?

 58

What is the command for archiving a group of files in hdfs.

 37

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Un-Answered Questions { Apache HDFS Hadoop Distributed File System }

Explain HDFS “Write once Read many” pattern?

34

How to keep files in HDFS?

55

How data or file is read in Hadoop HDFS?

37

Mention what is the best way to copy files between hdfs clusters?

73

List the various HDFS daemons in HDFS cluster?

35

What is NameNode and DataNode in HDFS?

49

What does heartbeat in hdfs means?

30

What is HDFS?

42

How is hdfs block size different from traditional file system block size?

50

What is hdfs block size?

57

Why is block size set to 128 MB in Hadoop HDFS?

107

Replication causes data redundancy and consume a lot of space, then why is it pursued in hdfs?

43

Define data integrity?

33

Hdfs stores data using commodity hardware which has higher chances of failures. So, how hdfs ensures the fault tolerance capability of the system?

31

Why does hive not store metadata information in hdfs?

31

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