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Apache HDFS Hadoop Distributed File System Interview Questions
Questions Answers Views Company eMail

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

46

Does hdfs enable a customer to peruse a record, which is already opened for writing?

34

What is the throughput?

47

How does hdfs give great throughput?

38

Will various customers write into an hdfs record simultaneously?

42

Clarify the difference between nas and hdfs.

35

What do you mean by meta information in hdfs?

32

Can we change the document present in hdfs?

41

Explain what is heartbeat in hdfs?

35

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

31

Explain how indexing in hdfs is done?

38

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

73

Mention what is the difference between hdfs and nas?

67

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

76

What is the difference between input split and hdfs block?

91


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

What are file permissions in HDFS? how does HDFS check permissions for files/directory?

53


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

73


If a particular file is 50 mb, will the hdfs block still consume 64 mb as the default size?

40


Does the HDFS go wrong? If so, how?

46


What is throughput? How does hdfs provides good throughput?

56


Replication causes data redundancy then why is pursued in hdfs?

47


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

37


How hdfs is different from traditional file systems?

49


What should be the HDFS Block size to get maximum performance from Hadoop cluster?

37


How data or file is read in Hadoop HDFS?

37


What is the difference between NAS and HDFS?

75


How do you do a file system check in hdfs?

45


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

102


Can multiple clients write into an HDFS file concurrently in hadoop?

70


What is the throughput?

47