Data Management Foundations WGU C175
Exam Questions and Answers (2026/2027) |
Updated Real Exam Questions | Accurate
Solutions Guide | A+
• Attribute -✓✓An attribute is a property or characteristic of an entity.
• Binary relationship -✓✓A binary relationship is a relationship
between two entity types.
• Candidate Key -✓✓Is any column or a combination of columns that
can qualify as unique key in database.
• Cardinality -✓✓Cardinality represents the maximum number of
entities that can be involved in a particular relationship.
• Cartesian product -✓✓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 -✓✓Will delete all records that reference the primary
key
• column subquery -✓✓Returns a single column of one or more values.
, • data encryption -✓✓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 -✓✓Is a methodology for organizing attributes
into tables so that redundancy among the non-key attributes is
eliminated.
• Data volatility -✓✓Describes how often stored data is updated.
• Data Volume Assessment -✓✓Understanding of how much data will
be in a database or a table within a database
• Database -✓✓A database is a collection of information that is
organized so that it can easily be accessed, managed, and updated.
• DCL -✓✓Data control language is used to control access to data
stored in a database.
• DDL -✓✓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.
Exam Questions and Answers (2026/2027) |
Updated Real Exam Questions | Accurate
Solutions Guide | A+
• Attribute -✓✓An attribute is a property or characteristic of an entity.
• Binary relationship -✓✓A binary relationship is a relationship
between two entity types.
• Candidate Key -✓✓Is any column or a combination of columns that
can qualify as unique key in database.
• Cardinality -✓✓Cardinality represents the maximum number of
entities that can be involved in a particular relationship.
• Cartesian product -✓✓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 -✓✓Will delete all records that reference the primary
key
• column subquery -✓✓Returns a single column of one or more values.
, • data encryption -✓✓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 -✓✓Is a methodology for organizing attributes
into tables so that redundancy among the non-key attributes is
eliminated.
• Data volatility -✓✓Describes how often stored data is updated.
• Data Volume Assessment -✓✓Understanding of how much data will
be in a database or a table within a database
• Database -✓✓A database is a collection of information that is
organized so that it can easily be accessed, managed, and updated.
• DCL -✓✓Data control language is used to control access to data
stored in a database.
• DDL -✓✓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.
