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

Apache Hadoop Interview Questions

Questions Answers Views Company eMail

What is Rack awareness?

999

How will format the HDFS ?

1063

what are the steps involved in commissioning adding

909

How to use Apache Zookeeper command line interface?

1137

Can NameNode and DataNode be a commodity hardware?

1679

What are the steps to submit a Hadoop job?

906

What is the heartbeat used for?

1045

How would you tackle counting words in several text documents?

1022

What are the Basics of Hadoop?

930

Explain the shuffle?

916

How blocks are distributed among all data nodes for a particular chunk of data?

1090

How can I install Cloudera VM in my system?

958

How we can take Hadoop out of Safe Mode?

IBM,

855

What is Writable & WritableComparable interface?

927

What will be the consideration while we do Hardware Planning for Master in Hadoop architecture?

1075

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Un-Answered Questions { Apache Hadoop }

What happens to a namenode, when job tracker is down?

752

Is it necessary to write jobs for hadoop in the java language?

661

What are the steps to submit a Hadoop job?

906

Does hadoop always require digital data to process?

1181

Can NameNode and DataNode be a commodity hardware?

1679

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

907

How to exit the vi editor?

732

What are the four characteristics of Big Data?

715

How blocks are distributed among all data nodes for a particular chunk of data?

1090

What is the function of NodeManager?

907

Define a combiner?

647

Are Namenode and job tracker on the same host?

1457

What is the difference between rdbms and hadoop?

645

What problems can be addressed by using Zookeeper?

941

What is HDFS High Availability?

962

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