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

Big Data Interview Questions

Questions Answers Views Company eMail

Explain about the scalar datatypes in Apache Pig?

554

Explain the uses of PIG?

684

What are the complex datatypes in pig?

667

What does illustrate do in Apache Pig?

619

What is UDF?

612

What are the different types of UDF's in Java supported by Apache Pig?

611

What is the usage of foreach operation in Pig scripts?

566

How will you merge the contents of two or more relations and divide a single relation into two or more relations?

670

What is the MapReduce plan in pig architecture?

678

What are the advantages of pig language?

566

What are the different execution mode available in Pig?

731

Define Spark Streaming.

309

Hadoop uses replication to achieve fault tolerance. How is this achieved in Apache Spark?

300

What is lineage graph?

346

What are benefits of Spark over MapReduce?

332

Un-Answered Questions { Big Data }

What is CQLSH in Cassandra?

What is the NameNode port number?

223

Where is rdd stored?

215

what are Task Tracker and Job Tracker?

694

Can you define pagerank?

173

How data or file is read in Hadoop HDFS?

what is Memtable in Cassandra?

What are the port numbers of namenode, job tracker and task tracker?

439

What is HBase Shell?

126

Mention what are the three types of tombstone markers in hbase?

156

Why do we need Hadoop Archives? How is it created?

254

What is cluster in apache spark?

220

Does spark sql use hive?

186

What is accumulator?

226

Which channel type is faster in Flume?

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