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Topic :: Apache Hadoop





Apache Hadoop Interview Questions
Questions Answers Views Company eMail

Where are Hadoop’s configuration files located?

 468

Show some utilization situations where Spark beats Hadoop in preparing?

 5

How to create a Hadoop cluster in Talend?

 5

Who divides the file into Block while storing inside hdfs in hadoop?

 47

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

 35

How one can format Hadoop HDFS?

 45

What happens if the block on Hadoop HDFS is corrupted?

 56

How is indexing done in Hadoop HDFS?

 48

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

 38

How data or file is read in Hadoop HDFS?

 33

How HDFS helps NameNode in scaling in Hadoop?

 58

What is Fault Tolerance in Hadoop HDFS?

 37

How data or file is written into Hadoop HDFS?

 38

What is Secondary NameNode in Hadoop HDFS?

 66

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

 59



Related Topics


Un-Answered Questions { Apache Hadoop }

What is Apache Hadoop YARN?

1417

What are the modules that constitute the Apache Hadoop 2.0 framework?

961

What is Apache Hadoop? Why is Hadoop essential for every Big Data application?

850

What are the core components of Apache Hadoop?

718

What is the difference between Apache Hadoop and RDBMS?

743

How is security achieved in Apache Hadoop?

836

What is Apache Hadoop?

800

What is a “Distributed Cache” in Apache Hadoop?

725

What is the problem with small files in Apache Hadoop?

729

What is Rack Awareness in Apache Hadoop?

750

Explain Erasure Coding in Apache Hadoop?

693

What is Disk Balancer in Apache Hadoop?

802

What is a speculative execution in Apache Hadoop MapReduce?

739

What are the modes in which Apache Hadoop run?

747

What is Safemode in Apache Hadoop?

684