Big Data Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Big Data Interview Questions

Questions Answers Views Company eMail

Is it possible to change the default location of a managed table?

730

What is the difference between the external table and managed table?

716

What is Bucketing and Clustering in Hive?

688

How to create table in hive for a json input file?

823

what is the difference between order by and sort by in Hive?

703

How Hive distributes the rows into buckets?

802

Why is Hive not suitable for OLTP systems?

762

Why do we perform partitioning in Hive?

746

Wherever (Different Directory) I run the hive query, it creates new metastore_db, please explain the reason for it?

747

What is the difference between local and remote metastore?

1106

What are different modes of metastore deployment in Hive?

700

Mention what are the type of database does Hive support ?

691

What is LazyOutputFormat in MapReduce?

683

What is Output Format in MapReduce?

694

Explain the features of Apache Spark because of which it is superior to Apache MapReduce?

617

Un-Answered Questions { Big Data }

What is the maximum recommended cell size?

174

Can We Change settings within Hive Session? If Yes, How?

781

Why replication is required in Kafka?

506

What is the difference between hbase and hadoop/hdfs?

169

Explain the need for MapReduce while programming in Apache Pig?

770

What square measure the options of apache mahout?

Tell me about the execution modes of Apache Pig?

538

What is the sequence of execution of Mapper, Combiner, and Partitioner in MapReduce?

850

What is InputSplit and RecordReader?

957

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

If the source data gets updated every now and then, how will you synchronize the data in hdfs that is imported by sqoop?

149

How much Metadata will be created on NameNode in Hadoop?

What is sparkContext?

282

Can you explain recommendation engine?

What is the most widely used API Write Data to Cassandra ?

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