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

Is the keyword 'DEFINE' like a function name?

903

What is the difference between Cassandra, Pig and Hive?

931

Does 'ILLUSTRATE' run MR job?

821

What is the use of "order by" in Hive?

925

What are the different components of a Hive query processor?

1385

If you run hive as a server, what are the available mechanism for connecting it from application?

858

How to use Hive using the command line and Beeline?

901

What is Hive Data Definition language?

923

How to enable buckets in Hive?

900

What is the difference between external table and managed table?

920

What are the different Complex Data Types available in Hive?

874

Difference between external table and internal table in HIVE ?

879

When you should use Hbase?

859

What is CONCATENATE command in Hive?

883

What is dynamic partitioning and when is it used?

986

Un-Answered Questions { Hadoop }

Give the difference between Column and SuperColumn?

141

List the configuration parameters that have to be specified when running a MapReduce job.

578

State the limitations of Apache Pig?

577

Does this lead to security issues?

707

What do you understand by snitches?

List some use cases where Spark outperforms Hadoop in processing.

279

What is the replica placement Strategy in Cassandra ?

How does Cassandra write?

What is spark checkpointing?

270

What is the role of JDBC driver in Sqoop?

What is master node in spark?

286

What are the side data distribution techniques?

445

Clarify what is sequence file input format?

496

What is lineage graph in spark?

275

Double type in Hive - Important points?

650

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