Wgu c175 real exam - Study guides, Class notes & Summaries

WGU C175 Exam Questions and Answers 100% Correct What does a record consist of? -Answer-A set of one or more fields What function does A DBMS perform that guarantee the integrity and consistency of the data in the database? -Answer-Data integrity, data storage, and security management What is data? -Answer-Raw Facts Database models were developed to what? -Answer-Model real-world events or conditions The entity integrity rule requires that -Answer-all primary key entries are unique What...

WGU C175 or D426 DATA MANAGEMENT FOUNDATIONS OA EXAM ACTUAL EXAM WITH 300 QUESTIONS AND ANSWERS (VERIFIED ANSWERS) ALREADY GRADED A+ How does Cardinality appear on the ER Diagram - ANSWER-Appears as a 1 or M on the relationship line, closest to entity Refers to the MAXIMUM number of times an instance in one entity can be associated with instance of another entity - ANSWER-One-To-Many Database models were developed to _____? - ANSWER-model real-world events or conditions The enti...

WGU C175/D426 DATA MANAGEMENT FOUNDATIONS OA EXAM -with 100% verified solutions- CORRECT AND VERIFIED ANSWERS)|ALREADY GRADED A+ VERSION A What does modality refer to? How does it appear on ER diagram? - ANSWERRefers to the MINIMUM number of times an instance in one entity can be associated with instance of another entity (minima) Appears as a 0 or 1 on the relationship line, next to cardinality Define: Referential Integrity - ANSWER- Requires that ALL foreign key values must either be...

WGU C175 or D426 DATA MANAGEMENT FOUNDATIONS OA EXAM QUESTIONS WITH CORRECT DETAILED ANSWERS || ALREADY GRADED A+ <UPDATED VERSION> Common attribute - ANSWER Defines how a table can be logically connected to another table Superkey - ANSWER An attribute (or group of attributes) that uniquely identifies each entity in a table Foreign key - ANSWER Must match a primary key in a related table ERD - ANSWER Used to graphically represent the conceptual database model Derived att...

WGU C175/D426 DATA MANAGEMENT FOUNDATIONS OA EXAM ACTUAL EXAM 2 LATEST VERSIONS 300 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (100% CORRECT AND VERIFIED ANSWERS) ALREADY GRADED A+ VERSION A What does modality refer to? How does it appear on ER diagram? - ANSWERRefers to the MINIMUM number of times an instance in one entity can be associated with instance of another entity (minima) Appears as a 0 or 1 on the relationship line, next to cardinality Define: Referential Integri...

Data Management - Foundations –WGU C175, Top exam questions with accurate answers, 100% Accurate. Flat Files - -Files having no internal hierarchy Heap files - -Files containing an unsorted set of records that are uniquely identified by a record id which allows them to be inserted or deleted using that id. Index Files - -Files that store a list of lookup field values from a data file end-user data - -raw facts of interest to the end user meta data - -data about data databa...

WGU C175 quizzes/. Top exam questions with accurate answers, rated A+ One disadvantage of the DBMS is that it increases the risk of data security breaches. - -False Accurate, relevant, and timely information is the key to____. - -good decision making _____ relates to the activities that make the database execute transactions more efficiently in terms of storage and access speed. - -Performance tuning The response of the DBMS to a query is the ______. - -query result set Field re...

WGU C175 Practice Exam 2, Questions and answers, 100% Accurate, rated A+ c - -A record consists of a ____. a. character b. collection of related records c. set of one or more fields d. group of files c - -A DBMS preforms several important functions that guarantee the integrity and consistency of the data in the database. Which of the following is not one of those functions? a. Data integrity management b.Data storage management c. Data reports d. Security management b - -W...