Data Management Foundation C175 WGU
questions and answers latest top score.
Associative Entity CORRECT ANSWER.An associative entity is an element of the
entity- relationship model. All relationships for the associative entity should
be many.
Attribute CORRECT ANSWER.An attribute is a property or characteristic of an
entity.
Binary relationship CORRECT ANSWER.A binary relationship is a relationship
between two entity types.
Candidate Key CORRECT ANSWER.Is any column or a combination of columns
that can qualify as unique key in database.
Cardinality CORRECT ANSWER.Cardinality represents the maximum number of
entities that can be involved in a particular relationship.
Cartesian product CORRECT ANSWER.Usually the result of a missing join
condition or a method of expanding the data of 1 table by the number of
rows in the second table.
Cascade Delete CORRECT ANSWER.Will delete all records that reference the
primary key
column subquery CORRECT ANSWER.Returns a single column of one or more
values.
data encryption CORRECT ANSWER.When data is encrypted, it is changed, bit
by bit or character by character, into a form that looks totally garbled. It can
and must be reconverted, or decrypted, back to its original form to be of
use.
, Data normalization CORRECT ANSWER.Is a methodology for organizing
attributes into tables so that redundancy among the non-key attributes is
eliminated.
Data volatility CORRECT ANSWER.Describes how often stored data is updated.
Data Volume Assessment CORRECT ANSWER.Understanding of how much data
will be in a database or a table within a database
Database CORRECT ANSWER.A database is a collection of information that is
organized so that it can easily be accessed, managed, and updated.
DCL CORRECT ANSWER.Data control language is used to control access to data
stored in a database.
DDL CORRECT ANSWER.Data definition language - involves instructing the
DBMS software on what tables will be in the database, what attributes will
be in the tables, which attributes will be indexed, and so forth.
Definer CORRECT ANSWER.Definer is a MySQL term where AuthID is the same
for another DBMS
Denormalization CORRECT ANSWER.The act of duplicating data in a database
for performance or the preservation of historical information
disaster recovery CORRECT ANSWER.Involves rebuilding an entire information
system or significant parts of one after a catastrophic natural disaster such
as a hurricane, tornado, earthquake, building collapse, or even a major fire.
DML CORRECT ANSWER.Data manipulation language refers to the four basic
operations that can and must be performed on data stored in any DBMS:
data retrieval, data update, insertion of new records, and deletion of existing
records.
E-R model CORRECT ANSWER.An E-R model is a data model for describing a
database in an abstract way.
embedded mode CORRECT ANSWER.The SELECT command is embedded within
the lines of a higher-level language program and functions as an input or
"read" statement for the program.
Entity CORRECT ANSWER.An entity is an object or event in our environment
that we want to keep track of.
Foreign Key CORRECT ANSWER.Is a field (or collection of fields) in one table that
uniquely identifies a row of another table.
questions and answers latest top score.
Associative Entity CORRECT ANSWER.An associative entity is an element of the
entity- relationship model. All relationships for the associative entity should
be many.
Attribute CORRECT ANSWER.An attribute is a property or characteristic of an
entity.
Binary relationship CORRECT ANSWER.A binary relationship is a relationship
between two entity types.
Candidate Key CORRECT ANSWER.Is any column or a combination of columns
that can qualify as unique key in database.
Cardinality CORRECT ANSWER.Cardinality represents the maximum number of
entities that can be involved in a particular relationship.
Cartesian product CORRECT ANSWER.Usually the result of a missing join
condition or a method of expanding the data of 1 table by the number of
rows in the second table.
Cascade Delete CORRECT ANSWER.Will delete all records that reference the
primary key
column subquery CORRECT ANSWER.Returns a single column of one or more
values.
data encryption CORRECT ANSWER.When data is encrypted, it is changed, bit
by bit or character by character, into a form that looks totally garbled. It can
and must be reconverted, or decrypted, back to its original form to be of
use.
, Data normalization CORRECT ANSWER.Is a methodology for organizing
attributes into tables so that redundancy among the non-key attributes is
eliminated.
Data volatility CORRECT ANSWER.Describes how often stored data is updated.
Data Volume Assessment CORRECT ANSWER.Understanding of how much data
will be in a database or a table within a database
Database CORRECT ANSWER.A database is a collection of information that is
organized so that it can easily be accessed, managed, and updated.
DCL CORRECT ANSWER.Data control language is used to control access to data
stored in a database.
DDL CORRECT ANSWER.Data definition language - involves instructing the
DBMS software on what tables will be in the database, what attributes will
be in the tables, which attributes will be indexed, and so forth.
Definer CORRECT ANSWER.Definer is a MySQL term where AuthID is the same
for another DBMS
Denormalization CORRECT ANSWER.The act of duplicating data in a database
for performance or the preservation of historical information
disaster recovery CORRECT ANSWER.Involves rebuilding an entire information
system or significant parts of one after a catastrophic natural disaster such
as a hurricane, tornado, earthquake, building collapse, or even a major fire.
DML CORRECT ANSWER.Data manipulation language refers to the four basic
operations that can and must be performed on data stored in any DBMS:
data retrieval, data update, insertion of new records, and deletion of existing
records.
E-R model CORRECT ANSWER.An E-R model is a data model for describing a
database in an abstract way.
embedded mode CORRECT ANSWER.The SELECT command is embedded within
the lines of a higher-level language program and functions as an input or
"read" statement for the program.
Entity CORRECT ANSWER.An entity is an object or event in our environment
that we want to keep track of.
Foreign Key CORRECT ANSWER.Is a field (or collection of fields) in one table that
uniquely identifies a row of another table.
