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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?

 42

Why HDFS?

 36

How to Delete file from HDFS?

 59

How to keep files in HDFS?

 55

How is NFS different from HDFS?

 49

Why is block size large in Hadoop?

 56

Distinguish HDFS Block and Input Unit?

 43

What are the difference between of the “HDFS Block” and “Input Split”?

 70

What happens when two users try to access to the same file in HDFS?

 79

Does the HDFS go wrong? If so, how?

 46

Why is HDFS only suitable for large data sets and not the correct tool to use for many small files?

 61

What happens when two clients try to access the same file on HDFS?

 185

What are the different file permissions in the HDFS for files or directory levels?

 146

How to read file in HDFS?

 50

When NameNode enter in Safe Mode?

 38

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

What are file permissions in HDFS and how HDFS check permissions for files or directory?

36

If I create a folder in HDFS, will there be metadata created corresponding to the folder? If yes, what will be the size of metadata created for a directory?

38

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

31

How data or file is written into HDFS?

50

What is the difference between NAS and HDFS?

75

What is the difference between an hdfs block and input split?

74

How to transfer data from Hive to HDFS?

41

What are the main features of hdfssite.xml?

31

What is throughput? How does HDFS provide good throughput?

30

What do you mean by meta information in hdfs? List the documents related to metadata.

30

How to perform the inter-cluster data copying work in HDFS?

46

What is HDFS?

42

What is the difference between an input split and hdfs block?

102

What is hdfs in big data?

40

What do you mean by block scanner in hdfs?

38

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