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

Define Cassandra?

What are the parameters used to create a keyspace?

108

Describe Network Topology Strategy?

123

Give the difference between Drop and Truncate in CQLSH?

How can a user get the information on the version of CQLSH?

Define Simple Strategy?

122

Give a list of Collection data type in Cassandra?

Describe JMX?

How can a user create a Keyspace in Cassandra?

Define primary key in Apache Cassandra?

Define Thrift in Apache Cassandra?

Name different types of the data model?

Give the difference between Column and SuperColumn?

141

Define durable writes?

Define Compaction?

Un-Answered Questions { Hadoop }

In which language is the Ambari Shell is developed?

Explain the process that overwrites the replication factors in HDFS?

What are the possible Job roles?

Differentiate between static and dynamic cql tables.

What is Flume?

110

how will you implement SQL in Spark?

363

How a task is scheduled by a jobtracker?

638

What are the different Relational Operators available in pig language?

693

How to create an rdd?

286

What is stage and task in spark?

209

How is RDD in Apache Spark different from Distributed Storage Management?

332

How Hadoop’s CLASSPATH plays a vital role in starting or stopping in Hadoop daemons?

389

File permissions in HDFS?

What are partitions and tokens in cassandra?

Can you explain apache spark?

302

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