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

Apache Hadoop (394)
MapReduce (354)
Apache Hive (345)
Apache Pig (225)

Apache Ambari (93)
Apache HCatalog (34)
Apache HDFS Hadoop Distributed File System (214)
Apache Kafka (189)

Hadoop Interview Questions

Questions Answers Views Company eMail

What are the key segments of hive architecture?

673

Say what the object inspector functionality is in hive?

754

What is the major difference between local and remote meta-store?

902

Clarify how hive de-serialize and serialize the information?

645

What is the utilization of hcatalog?

686

What are the various uses of explode hive?

678

Say when to pick “inward table” and “outside table” in hive?

704

What do hive variable means? How can we utilize it?

597

What in hive made out of?

686

Specify the different types of tables accessible in hive?

801

Clarify about the smb join in hive?

658

What is the throughput? How does hdfs give great throughput?

How does hdfs ensure information integrity of data blocks squares kept in hdfs?

What do you mean by block scanner in hdfs?

What do you mean by meta information in hdfs? List the documents related to metadata.

Un-Answered Questions { Hadoop }

Which one will you choose for a project –Hadoop MapReduce or Apache Spark?

315

Knox and Hadoop Development Tools?

929

what daemons run on a master node and slave nodes?

701

Why do we need a password-less ssh in fully distributed environment?

709

For using hadoop list the network requirements?

471

How do I start flume in hadoop?

What is partitioning key?

554

Difference between HBase vs Hive?

727

Mention what are the type of database does Hive support ?

691

Does spark run hadoop?

299

What are the file formats supported by spark?

305

What is safe mode in Hadoop?

961

How can we remove a znode?

What is a "Spark Executor"?

349

How to handle record boundaries in Text files or Sequence files in MapReduce InputSplits?

699

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