5370 Quiz 10
When a data repository (including internal and external data) does NOT follow a predefined schema, this is called a:
data lake.
An organization using HDFS realizes that hardware failure is a(n):
norm.
The three 'v's' commonly associated with big data include:
volume, variety, and velocity.
Apache Cassandra is a leading producer of ________ NoSQL database management systems.
wide-column
Economies of storage indicate data storage costs increase every year.
False
MongoDB is a proprietary NoSQL database management system created by Oracle.
False
The dive in anywhere characteristic of a data lake overrides constraints related to confidentiality.
False
The philosophical underpinnings of big data are based on schema on write.
False
The schema on write and schema on read are considered synonymous approaches.
False
Hive uses ________ to query data.
HiveQL
MongoDB databases are composed of:
collections
________ generally processes the largest quantities of data.
Transaction processing
Apache Cassandra is a wide-column NoSQL database management system.
True
Big data databases tend to sacrifice consistency for availability.
True
Collect everything is a characteristic of a data lake.
True
Hive creates MapReduce jobs and executes them on a Hadoop Cluster.
True
MapReduce is an algorithm for massive parallel processing utilized by Hadoop.
True
NoSQL databases DO NOT support ACID (atomicity, consistency, isolation, and durability).
True
NoSQL stands for 'Not only SQL.'
True
The 'schema on read' approach often incorporates JSON or XML.
True
The original three 'v's' attributed to big data include volume, variety, and velocity.
True
_______ includes concern about data quality issues.
Veracity
Hive is a(n) ________ data warehouse software.
Apache
Data in MongoDB is represented in:
BSON
________ is the most popular key-value store NoSQL database management system.
Redis
Big data:
does not require a strictly defined data model.
NoSQL focuses on:
flexibility
Big data includes:
large volumes of data with many different data types that are processed at very high speeds.
The Hadoop framework consists of the ________ algorithm to solve large scale problems.
MapReduce
An organization that decides to adopt the most popular NoSQL database management system would select:
MongoDB.
