distributes different data across multiple servers.
Sharding--correct
Limitations of RDBMS are
Scalability/Database design complexity--correct
Horizontal scaling approach tends to be cheaper as the number of operations and the
size of the data increases.
True--correct
NoSQL databases are designed to expand _.
horizontally--correct
Full-form of 'CRUD' is _.
Create-Read-Update-Delete--correct
A Riak convergent replicated data type (CRDT) includes .
Maps/Sets/Counters--correct
Cassandra has properties of both and __ .
Google Bigtable / Amazon Dynamo--correct
A Key-value store does not support Secondary Indexes.
False--correct
The RDBMS 'table' equivalent terminology in Riak is .
bucket--correct
Key-value pair data storages include all except .
Network Attached Storage--correct
The column store has to perform _ IO to insert a new value.
as many disk blocks--correct
In Hbase, 'Columns' are named and specified in table definition.
False--correct
In Cassandra, the ___ determines how many copies of the data will be maintained
across multiple nodes.
Replication factor--correct
A column-database used to store __ versions of each cells.
Multiple--correct
HBase Tables are divided _ by row key range into .
horizontally, regions--correct
Hbase main server components include all except _.
Hbase Memstore--correct
Cassandra allows to define composite Primary Keys.
True--correct
Columnar databases are preferable for OLTP systems.
False--correct
In column-oriented stores, data is stored on a basis.
Column Family--correct
In a columnar database, the columns are stored together on disk, achieving a higher
compression ratio is an expensive operation.
False--correct
In a column-database a row is being uniquely identified by __.
Row-key--correct
The row store needs to perform _ IO to insert a new value.
Single--correct
Pre-join projection is equivalent to as in traditional relational systems.
Materialized view--correct
The MATCH clause is roughly equivalent to the clause in SQL and the RETURN clause
to a _ clause.
Where, Select--correct
An RDBMS equivalent component for a "document identifier" in a Document database:
Foreign Key--correct
JSON documents are built up of _.
All the options--correct
______ is a syntax for retrieving specific elements from an XML document.
Xpath--correct
An RDBMS equivalent component for a "document" in a Document database:
Row--correct
In MongoDB, there is a similar feature of 'like' expression as like RDBMS.
False--correct
MongoDB read/write performance can be tuned with the help of Stored Procedures.
False--correct
Document databases split a document into its constituent name/value pairs for
indexing purpose.
False--correct
An RDBMS equivalent component for a "collection" in a Document database:
Table--correct
Cypher query language is associated with __.
Neo4j--correct
Graph databases are generally built for use with .
OLTP--correct
Neo4j architecture is a self-driven and independent architecture because of __.
Both the options--correct
The major components of a Graph include all except _.
JSON--correct
Only Nodes have properties in Graph database.
False--correct
Some of the common Write Consistency level in Cassandra include all except ___.
All the options--wrong
Hbase Region assignment operation is being handled by
Hbase Master--correct
In Cassandra, if the replication factor is 3, the coordinator will send replicas of
the data item to the next _ nodes on the ring.
4--wrong
Transactional integrity is relevant in case of batch-centric Hadoop-based analytics
on warehoused data.
False--correct
Sorted Column store would provide higher compression ratio by representing each
column as compared to the preceding one.
Delta--correct
Cassandra's Gossip Protocol can take care of the heartbeat lost due to _ in a
widely distributed system.
Both node failure and network issue--correct
