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 kinds of impala queries or data are best suited for hbase?

Is impala intended to handle real time queries in low-latency applications or is it for ad hoc queries for the purpose of data exploration?

Can I do trforms or add new functionality?

Why does my insert statement fail?

Is impala production ready?

What are the most memory-intensive operations?

What are the main features of impala?

Where can I get sample data to try?

Where can I find impala documentation?

What features from relational databases or hive are not available in impala?

Is hive an impala requirement?

When does impala hold on to or return memory?

What is zookeper?

Mention some instances where zookeeper is using?

How can we create znodes?

Un-Answered Questions { Big Data }

What is Pig Latin?

529

What will be the consideration while we do Hardware Planning for Master in Hadoop architecture?

1026

How is RDD in Apache Spark different from Distributed Storage Management?

328

Explain the input type/format in mapreduce by default?

547

Why rack awareness algorithm is used in hadoop?

How Big is ‘Big Data’?

389

What is heartbeat in hadoop?

394

What are the parameters used to create keyspace in cassandra?

What is the key- value pair in Hadoop MapReduce?

630

Give examples of some companies that are using Hadoop structure?

393

What happens to existing data in my cluster when I add new nodes?

203

How do you process big data with spark?

257

How would you check whether your NameNode is working or not?

386

List the files associated with metadata in hdfs?

Which query language is used in Cassandra database?

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