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

Discuss the precautions that are needed to take care while adding a column?

What are different logging levels in cassandra?

Describe the different consistency levels for read operation in cassandra?

Give the differences between the different types of primary keys in cassandra?

What are the main benefits of using cassandra?

What do you mean by tunable consistency?

What do you understand by logging in cassandra?

What do you mean by ss table?

Discuss and explain the various types of partitioners in cassandra?

What do you understand by the super column in cassandra?

Elucidate the concept of cap theorem?

What is the procedure of data storage in cassandra?

What do you understand by the term snitch in cassandra? Give some example.

Is it possible to add or delete column families in a working group?

What is mapper in map reduce?

641

Un-Answered Questions { Hadoop }

How many InputSplits will be made by hadoop framework?

492

How to add the partition in existing table without the partition table?

702

How many types of ambari repositories are available?

Explain first() operation in Apache Spark RDD?

369

What are the core apis in kafka?

596

Can the region server will be located on all datanodes?

316

What is Yum?

Can you explain speculative execution?

418

What do you understand by Pair RDD?

385

Explain Accumulator in Spark?

433

Which is the best hadoop certification?

671

State Disadvantages of Apache Kafka?

614

What is a databricks cluster?

381

State some applications of HBase?

167

what are Task Tracker and Job Tracker?

1071

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