DATA FOUNDATIONS MANAGEMENT ACTUAL LATEST GUIDE VERSIONS QUESTIONS & CORRECT DETAILED ANSWERS
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Module
DATA FOUNDATIONS MANAGEMENT
Institution
DATA FOUNDATIONS MANAGEMENT
DATA FOUNDATIONS MANAGEMENT
ACTUAL LATEST GUIDE VERSIONS
QUESTIONS & CORRECT DETAILED ANSWERS
Database application - ANSWER software that helps business users interact with database systems. Many databases are complex, and most users are not familiar with query languages. Consequently, dire...
DATA FOUNDATIONS MANAGEMENT
ACTUAL LATEST GUIDE VERSIONS
QUESTIONS & CORRECT DETAILED
ANSWERS
Database application - ANSWER software that helps business users
interact with database systems. Many databases are complex, and most
users are not familiar with query languages. Consequently, direct
database access is usually not feasible. Instead, programmers write
applications to simplify the user experience and ensure data access is
efficient and secure.
database administrator - ANSWER responsible for securing the
database system against unauthorized users. A database administrator
enforces procedures for user access and database system availability.
database designer - ANSWER determines the format of each data
element and the overall database structure. Database designers must
balance several priorities, including storage, response time, and support
for rules that govern the data. Since these priorities often conflict,
database design is technically challenging.
Data - ANSWER numeric, textual, visual, or audio information that
describes real-world systems. Data is collected and processed to aid in a
,variety of tasks, such as forecasting weather, analyzing financial
investments, and tracking the global spread of pandemics.
Scope. - ANSWER The amount of data produced and collected can
vary. Ex: A small business might track an inventory of a few thousand
items, but a large commerce website might track billions of items.
Format. - ANSWER Data may be produced as numbers, text, image,
audio, or video. Ex: A phone's proximity sensor generates raw numbers,
and a satellite captures images.
Access. - ANSWER Some data sources are private while others are
made publicly available. Ex: A retail company may use private customer
data to discover purchasing behavior patterns, but a government may be
required by law to share certain data sets.
application programming interface or API - ANSWER Software through
which programmers interact with middleware. An API allows the use of
generic SQL code, thereby allowing client processes to be database
server-independent.
attribute - ANSWER A characteristic of an entity or object. An attribute
has a name and a data type.
balancing - ANSWER A characteristic of an entity or object. An
attribute has a name and a data type.
, Big Data - ANSWER A movement to find new and better ways to
manage large amounts of web-generated data and derive business insight
from it, while simultaneously providing high performance and
scalability at a reasonable cost.
Chen notation - ANSWER See entity relationship or ER model.
class - ANSWER A collection of similar objects with shared structure
or attributes and behavior or methods. A class encapsulates an object's
data representation and a method's implementation. Classes are
organized in a class hierarchy.
class diagram notation - ANSWER The set of symbols used in the
creation of class diagrams in UML object modeling.
class diagrams - ANSWER A diagram used to represent data and their
relationships in UML object notation.
class hierarchy - ANSWER The organization of classes in a hierarchical
tree in which each parent class is a superclass and each child class is a
subclass. See also inheritance.
client - ANSWER Any process that requests specific services from
server processes in a client/server environment.
client node - ANSWER One of three types of nodes used in the Hadoop
Distributed File System or HDFS. The client node acts as the interface
, between the user application and the HDFS. See also name node and
data node.
complex object - ANSWER An object formed by several different
objects in complex relationships. See also abstract data types.
conceptual model - ANSWER The output of the conceptual design
process. The conceptual model provides a global view of an entire
database and describes the main data objects, avoiding details.
Analog - ANSWER encoded as continuous variations on various
physical media. Ex: Audio was recorded as vibrations impressed on
vinyl disks.
digital - ANSWER encoded as zeros and ones on electronic and
magnetic media.
database - ANSWER a collection of data in a structured format
database system, also known as a database management system or
DBMS - ANSWER software that reads and writes data in a database.
Database systems ensure data is secure, internally consistent, and
available at all times. These functions are challenging for large databases
with many users, so database systems are complex.
query - ANSWER a request to retrieve or change data in a database.
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