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 Distributed Cache?

937

what is difference between pig and sql?

2656

What problem does Apache Pig solve?

839

if you run Hive as a server?

959

What problems have you faced when you are working on Hadoop code?

1015

What is HDFS - Hadoop Distributed File System?

1003

Are multiline comments supported in Hive?

3332

How does MapReduce framework view its input internally?

920

What is the stable version of Hive ?

2661

What are the most commonly defined input formats in Hadoop?

1099

What does /var/hadoop/pids do?

1322

What is the use of Combiner?

1011

What is Hive ?

1040

what is SPF?

1554

what are Task Tracker and Job Tracker?

1120

Un-Answered Questions { Hadoop }

What is the primary purpose of the pig in the hadoop architecture?

2765

What is zookeeper server?

What is ganglia is used for in ambari?

What is spark application?

380

Differentiate between GROUP and COGROUP operators?

672

Explain about the indexing process in hdfs?

State some key Points about Apache Avro?

What is the use of apache flume?

What does the high availability of a name-node means?

474

What combiners are and when you should utilize a combiner in a map reduce job?

656

What are the types of System tools?

688

Why we use BloomMapFile?

645

Explain how can we check whether namenode is working or not?

615

What is Importance of Java in Apache Kafka?

584

Compare HBase vs RDBMS?

163

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