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Recent questions tagged #hadoop
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#hadoop
0
votes
Columnar databases are preferable for OLTP systems.
asked
Aug 26, 2019
in
NoSQL
by
Venkatshastri
#big-data
#mongodb
#hadoop
#cassandra
#big-data-analytics
#memebase
#nosql
#no-sql
#sql
#rdbms
0
votes
In a columnar database, the columns are stored together on disk, achieving a higher compression ratio is an expensive operation.
asked
Aug 26, 2019
in
NoSQL
by
Venkatshastri
#big-data
#mongodb
#hadoop
#cassandra
#big-data-analytics
#memebase
#nosql
#no-sql
#sql
#rdbms
0
votes
A column-database used to store __ versions of each cells.
asked
Aug 26, 2019
in
NoSQL
by
Venkatshastri
#big-data
#mongodb
#hadoop
#cassandra
#big-data-analytics
#memebase
#nosql
#no-sql
#sql
#rdbms
0
votes
The column store has to perform _ IO to insert a new value.
asked
Aug 26, 2019
in
NoSQL
by
Venkatshastri
#big-data
#mongodb
#hadoop
#cassandra
#big-data-analytics
#memebase
#nosql
#no-sql
#sql
#rdbms
0
votes
In column-oriented stores, data is stored on a basis.
asked
Aug 26, 2019
in
NoSQL
by
Venkatshastri
#big-data
#mongodb
#hadoop
#cassandra
#big-data-analytics
#memebase
#nosql
#no-sql
#sql
#rdbms
0
votes
In a column-database a row is being uniquely identified by __.
asked
Aug 26, 2019
in
NoSQL
by
Venkatshastri
#big-data
#mongodb
#hadoop
#cassandra
#big-data-analytics
#memebase
#nosql
#no-sql
#sql
#rdbms
0
votes
In Cassandra, the ___ determines how many copies of the data will be maintained across multiple nodes.
asked
Aug 26, 2019
in
NoSQL
by
Venkatshastri
#big-data
#mongodb
#hadoop
#cassandra
#big-data-analytics
#memebase
#nosql
#no-sql
#sql
#rdbms
0
votes
Cassandra allows to define composite Primary Keys.
asked
Aug 23, 2019
in
NoSQL
by
Venkatshastri
#big-data
#mongodb
#hadoop
#cassandra
#big-data-analytics
#memebase
#nosql
#no-sql
#sql
#rdbms
0
votes
The RDBMS 'table' equivalent terminology in Riak is
asked
Aug 23, 2019
in
NoSQL
by
Venkatshastri
#big-data
#mongodb
#hadoop
#cassandra
#big-data-analytics
#memebase
#nosql
#no-sql
#sql
#rdbms
0
votes
A Riak convergent replicated data type (CRDT) includes .
asked
Aug 23, 2019
in
NoSQL
by
Venkatshastri
#big-data
#mongodb
#hadoop
#cassandra
#big-data-analytics
#memebase
#nosql
#no-sql
#sql
#rdbms
0
votes
Cassandra has properties of both and __ .
asked
Aug 23, 2019
in
NoSQL
by
Venkatshastri
#big-data
#mongodb
#hadoop
#cassandra
#big-data-analytics
#memebase
#nosql
#no-sql
#sql
#rdbms
0
votes
Key-value pair data storages include all except
asked
Aug 23, 2019
in
NoSQL
by
Venkatshastri
#big-data
#mongodb
#hadoop
#cassandra
#big-data-analytics
#memebase
#nosql
#no-sql
#sql
#rdbms
0
votes
A Key-value store does not support Secondary Indexes
asked
Aug 23, 2019
in
NoSQL
by
Venkatshastri
#big-data
#mongodb
#hadoop
#cassandra
#big-data-analytics
#memebase
#nosql
#no-sql
#sql
#rdbms
0
votes
distributes different data across multiple servers.
asked
Aug 23, 2019
in
NoSQL
by
Venkatshastri
#big-data
#mongodb
#hadoop
#cassandra
#big-data-analytics
#memebase
#nosql
#no-sql
#sql
#rdbms
0
votes
Limitations of RDBMS are .
asked
Aug 23, 2019
in
NoSQL
by
Venkatshastri
#big-data
#mongodb
#hadoop
#cassandra
#big-data-analytics
#memebase
#nosql
#no-sql
#sql
#rdbms
0
votes
Full-form of 'CRUD' is _.
asked
Aug 23, 2019
in
NoSQL
by
Venkatshastri
#big-data
#mongodb
#hadoop
#cassandra
#big-data-analytics
#memebase
#nosql
#no-sql
#sql
#rdbms
0
votes
Horizontal scaling approach tends to be cheaper as the number of operations and the size of the data increases.
asked
Aug 23, 2019
in
NoSQL
by
Venkatshastri
#big-data
#mongodb
#hadoop
#cassandra
#big-data-analytics
#memebase
#nosql
#no-sql
#sql
#rdbms
+1
vote
Which of the following the data is organised into named coloumn?
asked
Jun 30, 2019
in
Spark Sql
by
anonymous
#spark-sql-questions-answers
#spark-sql
#spark-sql-questions
#sql-faq
#spark-sql-faq
#hadoop
#hadoop-spark
#big-data
#sql-tutorial
+1
vote
The Dataset API is accessible in-
asked
Jun 30, 2019
in
Spark Sql
by
anonymous
#spark-sql-questions-answers
#spark-sql
#spark-sql-questions
#sql-faq
#spark-sql-faq
#hadoop
#hadoop-spark
#big-data
#sql-tutorial
+1
vote
___ is the entry point to interact with underlying Spark functionality
asked
Jun 30, 2019
in
Spark Sql
by
anonymous
#spark-sql-questions-answers
#spark-sql
#spark-sql-questions
#sql-faq
#spark-sql-faq
#hadoop
#hadoop-spark
#big-data
#sql-tutorial
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