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Topic :: Data





Data Interview Questions
Questions Answers Views Company eMail

What are collection data types in Hive?

 734

Give examples of the SerDe classes which hive uses to Serialize and Deserialize data?

 715

When you point a partition of a hive table to a new directory, what happens to the data?

 766

What is the maximum size of string data type supported by Hive?

 796

How do you list all databases whose name starts with p?

 705

Is there a date data type in Hive?

 752

How to change the replication factor of data which is already stored in HDFS?

 39

What is NameNode and DataNode in HDFS?

 53

Why HDFS stores data using commodity hardware despite the higher chance of failures?

 40

How data or file is written into HDFS?

 53

If data is present in HDFS and RF is defined, then how can we change Replication Factor?

 34

What do you mean by metadata in HDFS? Where is it stored in Hadoop?

 91

What do you mean by metadata in HDFS?

 59

Data node block size in HDFS, why 64MB?

 53

How does a client read/write data in HDFS?

 45



Related Topics


Un-Answered Questions { Data }

Can we install Oracle database in VT100 Server?

2408

Is there anyway to automatically update the Datasource name in Database Checkpoints object when we migrate tests to a new release?

3908

How to connect to a remote database using Applet?

2562

How database connectivity in XML is achieved?

2253

How data can be inserted into long row column of database?

2163

How to know howmuch data is truncated?

2381

What are the parameters available in user exit for enhancing master data?

1979

What are the data target administration tasks?

2326

Where the data is extracted during init of delta and during delta updates?

2022

How do you transform OH data?

1936

How will you do data driven testing using Robot?

2567

Where the datapool values are stored?

2466

What is datapool cursor?

2327

What is standard data type and what is user defined data type?

2367

What information is contained in the Datapool_config section?

2206