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 is the difference between namenode, backup node and checkpoint namenode?

Is namenode also a commodity?

How do you do a file system check in hdfs?

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

What are problems with small files and hdfs?

Can you explain heartbeat in hdfs?

Can you define a block and block scanner in hdfs?

Can you explain about the indexing process in hdfs?

What is the throughput? How does hdfs give great throughput?

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

What do you mean by block scanner in hdfs?

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

What does heartbeat in hdfs means?

What does hdfs mean?

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

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

Write command to copy a file from HDFS to linux(local).

What is the procedure to create users in HDFS and how to allocate Quota to them?

What is Hadoop Distributed File System- HDFS?

What is a Block Scanner in HDFS?

Explain the difference between mapreduce engine and hdfs cluster?

Why HDFS stores data using commodity hardware despite the higher chance of failures in hadoop?

How one can change Replication factor when Data is already stored in HDFS

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

How to read file in HDFS?

Can you change the block size of hdfs files?

Data node block size in HDFS, why 64MB?

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

How to transfer data from Hive to HDFS?

Can we change the document present in hdfs?

Explain what is heartbeat in hdfs?

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