Recent questions tagged Hadoop

Madanswer

Q: NoSQL databases are designed to expand _.

Aug 23, 2019 in NoSQL - Database Revolution

Q: Which supports cost-based optimization and rule-based optimization

Jun 30, 2019 in Spark Sql

Q: To implement a custom untyped user-defined aggregation function, the user has to extend the which class

Jun 30, 2019 in Spark Sql

Q: Which is true about DataSource API

Jun 30, 2019 in Spark Sql

Q: Which is the entry point used in Spark 2.0?

Jun 30, 2019 in Spark Sql

Q: The SQL queries/API calls are converted to -------------------------

Jun 30, 2019 in Spark Sql

Q: Which of these code snippet is the correct format to run SQL queries?

Jun 30, 2019 in Spark Sql

Q: What is RDD?

Jun 30, 2019 in Spark Sql

Q: Email is an example of structured data

Jun 30, 2019 in Spark Sql

Q: Cassandra lightweight transactions (LWT) supports pattern.

May 31, 2019 in NoSQL - Database Revolution

Q: Hbase DDL Operations (create, delete tables) are maintained by ___.

May 31, 2019 in NoSQL - Database Revolution

Q: Like most relational databases, Kudu also offers secondary indexes and uniqueness constraints.

May 31, 2019 in NoSQL - Database Revolution

Q: In Riak, consistency model is implemented

May 31, 2019 in NoSQL - Database Revolution

Q: The process through which the on-disk tree files periodically merged to create larger consolidated stores is called __.

May 31, 2019 in NoSQL - Database Revolution

Q: Cassandra's Gossip Protocol can take care of the heartbeat lost due to _ in a widely distributed system.

May 31, 2019 in NoSQL - Database Revolution

Q: Riak demonstrates dual nature of

May 31, 2019 in NoSQL - Database Revolution

Q: Transactional integrity is relevant in case of batch-centric Hadoop-based analytics on warehoused data.

May 31, 2019 in NoSQL - Database Revolution

Q: In case of an Eventual consistency, reads may not return the most recent value, but reads will not return values “out of sequence.”

May 31, 2019 in NoSQL - Database Revolution

Q: The equivalent Hbase structure of an on-disk trees in Log-structured Merge Trees is ___.

May 31, 2019 in NoSQL - Database Revolution

Q: Kudu can be accessed via all except _.

May 31, 2019 in NoSQL - Database Revolution

Q: Wiredtiger storage engine is a part of ___.

May 31, 2019 in NoSQL - Database Revolution

Q: In Cassandra, if the replication factor is 3, the coordinator will send replicas of the data item to the next _ nodes on the ring.

May 31, 2019 in NoSQL - Database Revolution

Q: Read overhead in a Columnar database can be partly reduced by Multicolumn projection and _.

May 31, 2019 in NoSQL - Database Revolution

Q: _ are replicated to allow failover in MongoDB.

May 31, 2019 in NoSQL - Database Revolution

Q: The equivalent Hbase structure of an in-memory tree in Log-structured Merge Trees is __.

May 31, 2019 in NoSQL - Database Revolution

Q: Some of the common Write Consistency level in Cassandra include all except ___.

May 31, 2019 in NoSQL - Database Revolution

Q: Some of the common Read Consistency level in Cassandra include all except __.

May 31, 2019 in NoSQL - Database Revolution

Q: Sorted Column store would provide higher compression ratio by representing each column as compared to the preceding one.

May 31, 2019 in NoSQL - Database Revolution

Q: In case of a Strict consistency, a read will always return the most recent data value.

May 31, 2019 in NoSQL - Database Revolution

Q: Hbase Region assignment operation is being handled by _.

May 31, 2019 in NoSQL - Database Revolution

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