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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How data or file is written into Hadoop HDFS?

In HDFS, how Name node determines which data node to write on?

What is Secondary NameNode in Hadoop HDFS?

How to restart NameNode or all the daemons in Hadoop HDFS?

Why HDFS performs replication, although it results in data redundancy in Hadoop?

Can multiple clients write into a Hadoop HDFS file concurrently?

On what basis name node distribute blocks across the data nodes in HDFS?

Why is Reading done in parallel and writing is not in HDFS?

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

How to create Users in hadoop HDFS?

How to transfer data from Hive to HDFS?

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

What is Hadoop Distributed File System- HDFS?

What is throughput in HDFS?

How to split single hdfs block into partitions rdd?

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

What does heartbeat in hdfs means?

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

Why rack awareness algorithm is used in hadoop?

What is the difference between MapReduce engine and HDFS cluster?

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While processing data from hdfs, does it execute code near data?

What is the optimal block size in HDFS?

Why HDFS?

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

Define hadoop archives?

Will various customers write into an hdfs record simultaneously?

Tell me two most commonly used commands in HDFS?

How do you do a file system check in hdfs?

What do you mean by the High Availability of a NameNode in Hadoop HDFS?

What is throughput in HDFS?

How does hdfs provides good throughput?

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