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

Difference between order by and sort by in Hive?

736

What is Internal and External table in Hive?

734

What are the different components of a Hive architecture?

850

Explain how Hive Deserialize and serialize the data?

748

Mention what is ObjectInspector functionality in Hive?

748

Mention what is the difference between Hbase and Hive?

708

What is Clustring in Hive?

756

Mention Hive default read and write classes?

762

what are views in Hive?

769

In Hive, how can you enable buckets?

749

Is it possible to change the default location of a managed table?

744

What is the difference between the external table and managed table?

723

What is Bucketing and Clustering in Hive?

697

How to create table in hive for a json input file?

832

what is the difference between order by and sort by in Hive?

712

Un-Answered Questions { Hadoop }

Can you explain how you can use Apache Spark along with Hadoop?

311

What is cqlsh?

What are the different Relational Operators available in pig language?

739

Why are we using Flume?

List the various options available with the Hive command?

914

How to add/delete a Node to the existing cluster?

530

What are secondary indexes?

Compare Pig vs Hive vs Hadoop MapReduce?

688

What bit version ambary needs and list out the operating system that are compatible?

Explain Spark SQL caching and uncaching?

334

How does cassandra perform write operations?

Please explain the sparse vector in Spark.

284

How do you do a file system check in hdfs?

Is it possible to use Kafka without ZooKeeper?

663

Explain about the execution pl of a pig script?
or
differentiate between the logical and physical plan of an apache pig script?

513

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