NoSQL Interview Questions and Answers

0 votes

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

asked Aug 26, 2019 in NoSQL by Venkatshastri

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

asked Aug 26, 2019 in NoSQL by Venkatshastri

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Columnar databases are preferable for OLTP systems.

asked Aug 26, 2019 in NoSQL by Venkatshastri

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

asked Aug 26, 2019 in NoSQL by Venkatshastri

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

asked Aug 26, 2019 in NoSQL by Venkatshastri

0 votes

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

asked Aug 26, 2019 in NoSQL by Venkatshastri

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

asked Aug 26, 2019 in NoSQL by Venkatshastri

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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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Cassandra allows to define composite Primary Keys.

asked Aug 23, 2019 in NoSQL by Venkatshastri

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The RDBMS 'table' equivalent terminology in Riak is

asked Aug 23, 2019 in NoSQL by Venkatshastri

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A Riak convergent replicated data type (CRDT) includes .

asked Aug 23, 2019 in NoSQL by Venkatshastri

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Cassandra has properties of both and __ .

asked Aug 23, 2019 in NoSQL by Venkatshastri

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Key-value pair data storages include all except

asked Aug 23, 2019 in NoSQL by Venkatshastri

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A Key-value store does not support Secondary Indexes

asked Aug 23, 2019 in NoSQL by Venkatshastri

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distributes different data across multiple servers.

asked Aug 23, 2019 in NoSQL by Venkatshastri

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Limitations of RDBMS are .

asked Aug 23, 2019 in NoSQL by Venkatshastri

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Full-form of 'CRUD' is _.

asked Aug 23, 2019 in NoSQL by Venkatshastri

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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

NoSQL databases are designed to expand _.

asked Aug 23, 2019 in NoSQL by Venkatshastri

+3 votes

Cassandra lightweight transactions (LWT) supports pattern.

asked May 31, 2019 in NoSQL by aaravkhandelwal.2018

+3 votes

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

asked May 31, 2019 in NoSQL by aaravkhandelwal.2018

+3 votes

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

asked May 31, 2019 in NoSQL by aaravkhandelwal.2018

+2 votes

In Riak, consistency model is implemented

asked May 31, 2019 in NoSQL by aaravkhandelwal.2018

+3 votes

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

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

Riak demonstrates dual nature of

asked May 31, 2019 in NoSQL by aaravkhandelwal.2018

+2 votes

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

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

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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