NoSQL Interview Questions and Answers

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Q: The row store needs to perform _ IO to insert a new value.

asked Aug 26, 2019 in NoSQL by Venkatshastri

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Q: In Hbase, 'Columns' are named and specified in table definition.

asked Aug 26, 2019 in NoSQL by Venkatshastri

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Q: Columnar databases are preferable for OLTP systems.

asked Aug 26, 2019 in NoSQL by Venkatshastri

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Q: 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

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Q: A column-database used to store __ versions of each cells.

asked Aug 26, 2019 in NoSQL by Venkatshastri

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Q: The column store has to perform _ IO to insert a new value.

asked Aug 26, 2019 in NoSQL by Venkatshastri

0 votes

Q: In column-oriented stores, data is stored on a basis.

asked Aug 26, 2019 in NoSQL by Venkatshastri

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Q: In a column-database a row is being uniquely identified by __.

asked Aug 26, 2019 in NoSQL by Venkatshastri

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Q: In Cassandra, the ___ determines how many copies of the data will be maintained across multiple nodes.

asked Aug 26, 2019 in NoSQL by Venkatshastri

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Q: Cassandra allows to define composite Primary Keys.

asked Aug 23, 2019 in NoSQL by Venkatshastri

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Q: The RDBMS 'table' equivalent terminology in Riak is

asked Aug 23, 2019 in NoSQL by Venkatshastri

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Q: A Riak convergent replicated data type (CRDT) includes .

asked Aug 23, 2019 in NoSQL by Venkatshastri

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Q: Cassandra has properties of both and __ .

asked Aug 23, 2019 in NoSQL by Venkatshastri

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Q: Key-value pair data storages include all except

asked Aug 23, 2019 in NoSQL by Venkatshastri

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Q: A Key-value store does not support Secondary Indexes

asked Aug 23, 2019 in NoSQL by Venkatshastri

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Q: distributes different data across multiple servers.

asked Aug 23, 2019 in NoSQL by Venkatshastri

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Q: Limitations of RDBMS are .

asked Aug 23, 2019 in NoSQL by Venkatshastri

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Q: Full-form of 'CRUD' is _.

asked Aug 23, 2019 in NoSQL by Venkatshastri

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Q: 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

+2 votes

Q: NoSQL databases are designed to expand _.

asked Aug 23, 2019 in NoSQL by Venkatshastri

+3 votes

Q: Cassandra lightweight transactions (LWT) supports pattern.

asked May 31, 2019 in NoSQL by aaravkhandelwal.2018

+3 votes

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

asked May 31, 2019 in NoSQL by aaravkhandelwal.2018

+3 votes

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

asked May 31, 2019 in NoSQL by aaravkhandelwal.2018

+2 votes

Q: In Riak, consistency model is implemented

asked May 31, 2019 in NoSQL by aaravkhandelwal.2018

+3 votes

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

asked May 31, 2019 in NoSQL by aaravkhandelwal.2018

+3 votes

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

asked May 31, 2019 in NoSQL by aaravkhandelwal.2018

+1 vote

Q: Riak demonstrates dual nature of

asked May 31, 2019 in NoSQL by aaravkhandelwal.2018

+2 votes

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

asked May 31, 2019 in NoSQL by aaravkhandelwal.2018

+2 votes

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

asked May 31, 2019 in NoSQL by aaravkhandelwal.2018

+1 vote

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

asked May 31, 2019 in NoSQL by aaravkhandelwal.2018

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