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 are the functionalities of jobtracer?

410

How does fault tolerance work in mapreduce?

625

What is a scarce system resource?

653

With the help of two examples name the map and reduce function purpose

638

Write a short note on the disadvantages of mapreduce

600

Explain what you understand by speculative execution

607

Explain combiners.

633

when do reducers play their role in a mapreduce task?

616

In mapreduce what is a scarce system resource? Explain?

669

What do you understand by mapreduce?

647

Explain how mapreduce works.

615

What is an input reader in reference to mapreduce?

622

How is mapreduce related to cloud computing?

659

Define the purpose of the partition function in mapreduce framework

663

What are the various input and output types supported by mapreduce?

630

Un-Answered Questions { Big Data }

How hbase uses zookeeper?

Is spark difficult to learn?

304

Mention how many operational commands in hbase?

288

List few components that are using big data?

545

What is gossip protocol in Cassandra?

Is it possible to create multiple table in hive for same data?

691

What is heartbeat in hdfs? Explain.

681

Explain about the indexing process in hdfs?

What is the use of foreach operation in Pig scripts?

594

What is the Cassandra Coefficient ?

Who are ‘Data Scientists’?

415

What is RDD lineage graph? How does it enable fault-tolerance in Spark?

307

How do I optimize my spark code?

306

How many Reducers run for a MapReduce job?

689

Explain the core components of Flume?

109

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