Computer Science > EXAM > C175 WGU EXAM / WITH COMPLETE SOLUTIONS (All)

C175 WGU EXAM / WITH COMPLETE SOLUTIONS

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Associative Entity - ANS -An associative entity is an element of the entity-relationship model. All relationships for the associative entity should be many. Attribute - ANS -An attribute is a prope... rty or characteristic of an entity. Binary relationship - ANS -A binary relationship is a relationship between two entity types. Candidate Key - ANS -Is any column or a combination of columns that can qualify as unique key in database. Cardinality - ANS -Cardinality represents the maximum number of entities that can be involved in a particular relationship. Cartesian product - ANS -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 - ANS -Will delete all records that reference the primary key column subquery - ANS -Returns a single column of one or more values. data encryption - ANS -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 - ANS -Is a methodology for organizing attributes into tables so that redundancy among the non-key attributes is eliminated. Data volatility - ANS -Describes how often stored data is updated. Data Volume Assessment - ANS -Understanding of how much data will be in a database or a table within a database Database - ANS -A database is a collection of information that is organized so that it can easily be accessed, managed, and updated. DCL - ANS -Data control language is used to control access to data stored in a database. DDL - ANS -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 - ANS -Definer is a MySQL term where AuthID is the same for another DBMS [Show More]

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