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?

477

How does fault tolerance work in mapreduce?

699

What is a scarce system resource?

720

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

699

Write a short note on the disadvantages of mapreduce

654

Explain what you understand by speculative execution

676

Explain combiners.

688

when do reducers play their role in a mapreduce task?

663

In mapreduce what is a scarce system resource? Explain?

724

What do you understand by mapreduce?

705

Explain how mapreduce works.

679

What is an input reader in reference to mapreduce?

669

How is mapreduce related to cloud computing?

717

Define the purpose of the partition function in mapreduce framework

723

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

691

Un-Answered Questions { Big Data }

Define compaction in HBase?

170

What is a namenode? How many instances of namenode run on a hadoop cluster?

700

Is it possible to add 100 more nodes when we already have 100 nodes in Hive?

1328

Who is the founder of spark?

328

How we can take Hadoop out of Safe Mode?

901

What is the role of CQLSH?

What do the four V's of Big Data denote?

676

What do you understand by composite type?

What is hadoop technology?

319

How Apache Pig deals with the schema and schema-less data?

621

Explain apache spark streaming? How is the processing of streaming data achieved in apache spark?

320

How many Reducers should be configured?

201

When is it suggested to use a combiner in a MapReduce job?

697

What is meant by rdd lazy evaluation?

418

What is the main purpose of HDFS fsck command?

1861

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