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

Apache Hadoop (394)
MapReduce (354)
Apache Hive (345)
Apache Pig (225)

Apache Ambari (93)
Apache HCatalog (34)
Apache HDFS Hadoop Distributed File System (214)
Apache Kafka (189)

Hadoop Interview Questions

Questions Answers Views Company eMail

What is the relationship between Hadoop, HBase, Hive and Cassandra ?

148

Explain Cqlsh?

Define NoSQL Database?

What Platforms Cassandra runs on?

Give some advantages of Cassandra?

What is the use of “void close()” method?

What are the collection data types provided by CQL?

What is the use of “ResultSet execute(Statement statement)” method?

What do you mean by consistency in Cassandra?

186

Give the data storage units in Cassandra?

What is data replication in Cassandra?

When can you use ALTER KEYSPACE?

What is the concept of SuperColumn in Cassandra?

How many types of tunable consistency are supported in Cassandra?

Mention what are the values stored in the Cassandra Column?

Un-Answered Questions { Hadoop }

What are the differences between PIG and MapReduce?

586

What are the common hadoop PIG interview questions, that you have been asked in a Hadoop Job Interview?

570

Is hive an impala requirement?

How Spark uses Hadoop?

298

Why does spark skip stages?

255

Explain avrostorage function?

629

Define standalone mode in hbase?

140

Does 'ILLUSTRATE' run a MapReduce job?

528

Can we run unix shell commands from hive? Give example?

675

Does spark work with python 3?

296

List commonly used machine learning algorithm?

292

Clarify about the smb join in hive?

658

How to explain Bigdatadeveloper projects

590

Is there any difference between FileSink and FileRollSink?

What exactly is spark?

272

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