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 the difference between an hdfs block and input split?

Explain hdfs?

Explain the key features of hdfs?

How does hdfs get a good throughput?

Explain how indexing is done in hdfs?

Explain the difference between mapreduce engine and hdfs cluster?

132

Explain the difference between an hdfs block and input split?

Explain what is big data?

558

Give some examples of big data?

510

Give a detailed overview about the big data being generated by facebook?

497

What are the three characteristics of big data according to ibm?

490

Explain how big is ‘big data’?

547

What do you know about sequencefileinputformat?

638

Why we cannot do aggregation (addition) in a mapper? Why we require reducer for that?

645

Why the name ‘hadoop’?

617

Un-Answered Questions { Big Data }

What is the primary purpose of the pig in the hadoop architecture?

2726

Can Ambari manage multiple clusters?

How to Alter Hive Database?

750

What are the characteristics of hadoop framework?

670

What is the utilization of hcatalog?

688

What is the use of coordinator node in read?

What is difference between reducer and combiner?

569

What is spark checkpointing?

294

Define Actions.

303

What are the default configuration files that are used in hadoop?

693

Explain Hadoop Archives?

540

What is the function of consistency cqlsh command in Cassandra?

What do you understand by cluster in cassandra?

What is flume agent?

Mention Hive default read and write classes?

760

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