Apache HDFS Hadoop Distributed File System Interview Questions
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Why do we need hdfs?

48

What is hdfs in big data?

38

Explain how are file systems checked in hdfs?

30

How are file systems checked in hdfs?

23


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

What happens if the block in HDFS is corrupted?

29


How are file systems checked in hdfs?

23


Explain what is a difference between an input split and hdfs block?

25


What is the difference between NAS and HDFS?

64


If the source data gets updated every now and then, how will you synchronize the data in hdfs that is imported by sqoop?

127






How to copy a file into HDFS with a different block size to that of existing block size configuration?

28


Replication causes data redundancy then why is pursued in hdfs?

38


Define hadoop archives?

20


What do you mean by meta information in hdfs?

24


What is the problem in having lots of small files in hdfs?

38


Replication causes data redundancy then why is is pursued in HDFS?

42


How can one copy a file into HDFS with a different block size to that of existing block size configuration?

44


Can you change the block size of hdfs files?

36


Explain hdfs?

48


How does hdfs ensure information integrity of data blocks squares kept in hdfs?

23