Big Data Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Big Data Interview Questions

Questions Answers Views Company eMail

Which one is default InputFormat in Hadoop ?

1 2412

shouldn't DFS be able to handle large volumes of data already?

1109

What is Apache Pig?

869

what is a datanode?

978

How does NameNode tackle DataNode failures?

1208

What is InputSplit and RecordReader?

1015

What is the purpose of dfsadmin tool?

1299

How can you connect an application

1066

What are combiners? When should I use a combiner in my MapReduce Job?

956

how is a file of the size 1 GB uncompressed

962

Is map like a pointer?

952

What is the default replication factor?

1027

What should be the ideal replication factor in Hadoop Cluster?

2 3216

How can one increase replication factor to a desired value in Hadoop?

1159

In Map Reduce why map write output to Local Disk instead of HDFS?

957

Un-Answered Questions { Big Data }

How can you delete the DBPROPERTY in Hive?

681

Explain what is sqoop in Hadoop ?

777

How will you list all the columns of a table using Apache Sqoop?

Define "PageRank".

305

When does the queue full exception emerge inside the manufacturer?

542

What do you mean by metadata in Hadoop?

Explain Spark countByKey() operation?

339

Where do you specify the Mapper Implementation?

1060

Can you define big data analytics?

584

What is sc parallelize?

372

What is Apache Zookeeper Meant For?

What is the module in HDFS?

When is it not recommended to use MapReduce paradigm for large

698

What does rdd mean?

333

Define the difference between hive and hbase?

172

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