Big Data Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Big Data Interview Questions

Questions Answers Views Company eMail

What is hector?

Explain cassandra data model?

What is the use of "cqlsh --version" command?

What do you understand by snitches?

What do you understand by sstabl in cassandra?

What is the message broker?

481

Explain apache kafka?

518

List some use cases of apache kafka?

476

How can you send large messages with kafka (over 15mb)?

498

What is the role of a zookeeper in a kafka cluster?

541

What are the major apis available in apache kafka?

501

List some difference between flume and kafka?

476

Can we use kafka without zookeeper?

542

How do I achieve fifo behavior with kafka?

528

What are some alternatives to apache kafka?

561

Un-Answered Questions { Big Data }

How does hadoop achieve fault tolerance?

416

Is it possible to have hadoop job output in multiple directories?

444

What is spark repartition?

313

How can we drop a table in HCatalog?

Define data replication?

What is a Record Reader in hadoop?

957

What is the reason behind Transformation being a lazy operation in Apache Spark RDD? How is it useful?

480

JMX stands for?

108

What are the different methods to run Spark over Apache Hadoop?

716

Specify the partitions in hive?

659

How is security achieved in Apache Hadoop?

909

What are the consistency levels for read operations in Cassandra?

In which language apache kafka is written?

532

What is the default replication factor and how will you change it?

533

what is JobTracker in Hadoop? What are the actions followed by Hadoop?

768

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