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

Why Avro?

Explain Thrift & Protocol Buffers Vs. Avro?

Explain the Avro SASL Profile?

How to use Avro?

Name some Complex types of Data types, Avro Supports?

What do you mean by Schema Resolution?

Explain Avro Schemas?

What Avro offers?

Explain some Advantages of Avro?

122

Explain some Disadvantages of Avro?

What are best features of Apache Avro?

State some key Points about Apache Avro?

Who are Intended Audience to learn Avro?

What are Prerequisites to learn Avro?

Name some Primitive types of Data types, Avro Supports?

Un-Answered Questions { Hadoop }

How to start kafka server?

609

What does /var/hadoop/pids do?

1319

What is NoSQL?

959

What is a pipelinedrdd?

450

Highlight the difference between group and Cogroup operators in Pig?

903

What is PageRank in Spark?

287

What is a worker node in Apache Spark?

310

What is a generic udf in hive?

769

Compare apache pig and sql?

604

What are the fundamental configurations parameters specified in map reduce?

674

Explain Apache Ambari architecture?

Why is jconsole used?

100

What are the main features of impala?

What are transformations in spark?

327

What is Secondary NameNode in Hadoop HDFS?

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