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 }

Explain the functionalities of the nagios in ambari?

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

527

What is CQLSH in Cassandra?

100

What is aggregatebykey spark?

291

Does impala support generic jdbc?

How does cassandra perform write operations?

What is the function of consistency cqlsh command in Cassandra?

How do users interact with the shell in apache pig?

574

What is the purpose of RecordReader in hadoop?

528

How to get the single file as the output from MapReduce Job?

683

is HQL case sensitive?

903

How does HDFS ensure Data Integrity of data blocks stored in HDFS?

What is executor memory and driver memory in spark?

298

Why the name ‘hadoop’?

664

What is the use of spark sql?

290

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