Chapter 10 (Final)

Question 1

Big data includes:

Answer 1

large volumes of data with many different data types that are processed at very high speeds.

Question 2

An organization that requires a graph database that is highly scalable would select the ________ database management system.

Answer 2

Neo4j

Question 3

The philosophical underpinnings of big data are based on schema on write.

Answer 3

False

Question 4

With HDFS it is less expensive to move the execution of computation to data than to move the:

Answer 4

data to computation.

Question 5

JSON is commonly used in conjunction with the ‘document store’ NoSQL database model.

Answer 5

True

Question 6

Transaction processing and management reporting tend to fit big data databases better than relational databases.

Answer 6

False

Question 7

Economies of storage indicate data storage costs increase every year.

Answer 7

False

Question 8

According to your text, NoSQL stands for:

Answer 8

Not Only SQL.

Question 9

When reporting and analysis organization of the data is determined when the data is used is called a(n):

Answer 9

schema on read.

Question 10

Graph-oriented databases are designed to maintain information regarding the relationships between data items.

Answer 10

True

Question 11

The target market for Hadoop is small to medium companies using local area networks.

Answer 11

False

Question 12

________ is an important scripting language to help reduce the complexity of MapReduce.

Answer 12

Pig

Question 13

Value (related to the five ‘v’s’ of big data) addresses the pursuit of a meaningful goal.

Answer 13

True

Question 14

NoSQL stands for ‘Not only SQL.’

Answer 14

True

Question 15

Big data allows for two different data types (text and numeric).

Answer 15

False

Question 16

Apache Cassandra is a wide-column NoSQL database management system.

Answer 16

True

Question 17

MongoDB databases are composed of:

Answer 17

collections

Question 18

________ is the most popular key-value store NoSQL database management system.

Answer 18

Redis

Question 19

The three ‘v’s’ commonly associated with big data include:

Answer 19

volume, variety, and velocity.

Question 20

Big data requires effectively processing:

Answer 20

many data types.

Question 21

The Hadoop Distributed File System (HDFS) is the foundation of a ________ infrastructure of Hadoop.

Answer 21

data management

Question 22

An organization using HDFS realizes that hardware failure is a(n):

Answer 22

norm

Question 23

NoSQL databases DO NOT support ACID (atomicity, consistency, isolation, and durability).

Answer 23

True

Question 24

NoSQL includes data storage and retrieval:

Answer 24

not based on the relational model.

Question 25

The NoSQL model that is specifically designed to maintain information regarding the relationships (often real-world instances of entities) between data items is called a:

Answer 25

graph-oriented database.

Question 26

Although volume, variety, and velocity are considered the initial three v dimensions, two additional Vs of big data were added and include:

Answer 26

veracity and value.

Question 27

Collect everything is a characteristic of a data lake.

Answer 27

True

Question 28

Neo4j is a wide-column NoSQL database management system developed by Oracle.

Answer 28

False

Question 29

________ includes concern about data quality issues.

Answer 29

Veracity

Question 30

Big data:

Answer 30

does not require a strictly defined data model.

Question 31

It is true that in an HDFS cluster the NameNode is the:

Answer 31

single master server.

Question 32

At a basic level, analytics refers to:

Answer 32

analysis and interpretation of data.

Question 33

The schema on write and schema on read are considered synonymous approaches.

Answer 33

False

Question 34

The original three 'v's' attributed to big data include volume, variety, and velocity.

Answer 34

True

Question 35

The NoSQL model that incorporates 'column families' is called a:

Answer 35

wide-column store.

Question 36

The Hadoop framework consists of the ________ algorithm to solve large scale problems.

Answer 36

MapReduce

Question 37

NoSQL focuses on avoidance of replication and minimizing storage space.

Answer 37

False

Question 38

The primary use of Pig is to:

Answer 38

transform raw data into a format that is useful for analysis.

Question 39

Hive uses ________ to query data.

Answer 39

HiveQL

Question 40

HBASE is a wide-column store database that runs on top of HDFS (modeled after Google).

Answer 40

True

Question 41

The 'schema on read' approach often incorporates JSON or XML.

Answer 41

True