WGU C170 Terms.|Latest Update Complete with A+ Graded Answers

WGU C170 Terms.|Latest Update Complete with A+ Graded Answers Associative Entity All relationships for the (...) entity should be many. Attribute An (...) is a property or characteristic of an entity. Binary relationship A (...) is a relationship between two entity types. Cardinality (...) represents the maximum number of entities that can be involved in a particular relationship. Cascade Delete Will delete all records that reference the primary key Database A (...) is a collection of information that is organized so that it can easily be accessed, managed, and updated. E-R model An (...) is a data model for describing a database in an abstract way. Entity An (...) is an object or event in our environment that we want to keep track of. Intersection Data Associated with the concatenation of two segments Modality (...) represents the minimum number of entity occurrences that can be involved in a relationship. Ternary Relationship A (...) relationship is when three entities participate in the relationship. Unary Relationships (...) relationships associate occurrences of an entity type with other occurrences of the same entity type. Unique Identifier A (...) is any identifier which is guaranteed to be unique among all identifiers used for those objects and for a specific purpose. Data encryption When data is (...), 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 Denormalization The act of duplicating data in a database for performance or the preservation of historical information Disaster recovery 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 Index Used to help a DBMS find data quickly Logical view Is a mapping onto a physical table or tables that allows an end user to access only a specified portion of data. Response time Is the delay from the time that the Enter Key is pressed to execute a query until the result appears on screen. Throughput Is the measure of how many queries from simultaneous users must be satisfied in a given period of time by the application set and the database that it supports. Client/server architecture (...) architecture is a network architecture in which the server manages services consumed by the client. It is also known as two-tier architecture. Database directory (...) is an organized repository of databases that stores attributes such as the database character set and collation. GUI (graphical user interface) (...) is a computer program that enables a user to communicate with a computer through the use of graphical icons. MySQL (...) is an open source RDBMS based on SQL (structure query language) and used for adding, removing, and modifying information in the database. Option file (...) is an appropriate way of specifying commonly used options on the command line while executing a program. RDBMS (relational database management system) (...) is a program that lets you create, update, and administer a relational database. Schema In a relational database, a (...) defines tables, fields in each table, and relationships between fields and tables. DB2 (...) is a relational database management system product from IBM that serves a number of operating system platforms. DCL (...) is used to control access to data stored in a database. DDL (...) - 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. DML (...) 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. EER (enhanced entity-relationship) diagram (...) is a conceptual data model incorporating extensions to the original entity-relationship model used in the design of databases. SQL Is a comprehensive database management language which incorporates DML and DDL BLOB (binary large objects) (...) is a collection of binary data stored as a single entity in a database management system. It holds up to 65,535 bytes of data.