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 exception handling operators in Pig script?

578

How should 'load' keyword is useful in pig scripts?

532

When we write a= load …, what does 'a' called?

533

What are the drawbacks of Pig?

604

What is the difference between store and dumps commands?

670

What is Flatten and what it do in PIG?

638

What are the common hadoop PIG interview questions, that you have been asked in a Hadoop Job Interview?

570

What are the differences between PIG and HIVE?

604

What is the Physical plan in pig architecture?

531

Can you join multiple fields in Apache

529

What are the components of Pig Execution Environment?

568

What is the use of foreach operation in Pig scripts?

594

Is Pig script case sensitive?

609

What are the different execution modes available in Pig?

553

You have a file personal_data.txt in the HDFS directory with 100 records. You want to see only the first 5 records from the employee.txt file. How will you do this?

795

Un-Answered Questions { Big Data }

Mention what are the values stored in the Cassandra Column?

What is mllib?

279

I have a row or key cache hit rate of 0.XX123456789 reported by JMX. Is that XX% or 0.XX% ?

Does Apache Spark provide checkpoints?

284

Ideally what should be the block size in hadoop?

461

What are the main classes of Data Transfer API?

Can you give a detailed overview about the Big Data being generated by Facebook?

432

If map reduce is inferior to spark then is there any benefit of learning it?

282

Define the purpose of the partition function in mapreduce framework

663

List the languages supported by Apache Spark?

313

What is SparkSession in Apache Spark?

290

List the advantage of Parquet file in Apache Spark?

457

Describe REVERSE function in Hive with example?

705

Where sorting is done on mapper node or reducer node in MapReduce?

673

What do sorting and shuffling do?

696

For More Un-Answered { Big Data } Questions Click Here