Apache HDFS Hadoop Distributed File System Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Apache HDFS Hadoop Distributed File System Interview Questions

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What happens if the block on Hadoop HDFS is corrupted?

What is a block in HDFS, why block size 64MB?

How NameNode tackle Datanode failures in HDFS?

How is indexing done in Hadoop HDFS?

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

What are the main properties of hdfs-site.xml file?

Describe HDFS Federation?

What is active and passive NameNode in HDFS?

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Does HDFS allow a client to read a file which is already opened for writing in hadoop?

How data or file is read in Hadoop HDFS?

How HDFS helps NameNode in scaling in Hadoop?

What is Fault Tolerance in Hadoop HDFS?

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

What is a Block Scanner in HDFS?

Differentiate HDFS & HBase?

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

How data or a file is written into hdfs?

Clarify the difference between nas and hdfs.

How is indexing done in HDFS?

Why HDFS?

How does hdfs provides good throughput?

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

Explain hdfs?

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

How to create Users in hadoop HDFS?

How does hdfs give great throughput?

Difference Between Hadoop and HDFS?

Would you be able to change the block size of hdfs files?

How data or file is read in Hadoop HDFS?

How to format the HDFS? How frequently it will be done?

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

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