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Chapter 3: Data Models TRUE/FALSE 1. A data model is usually graphical. ANS: T PTS: 1 2. The terms data model and database model are often used interchangeably. ANS: T PTS: 1 3. An implementation-ready data model should contain a description of the data structure that will store the end-user data. ANS: T PTS: 1 4. Within the database environment, a data model represents data structures with the purpose of supporting a specific problem domain. ANS: T PTS: 1 5. Data modeling starts with a...

What is a broad definition of data? Raw facts that are captured on printed or digital media What are data? Facts that are collected and stored in a database system What is a determining characteristic of unstructured data? It does not follow a data model. Which is true about flat files? They contain no internal hierarchical organization. Which technology has no internal hierarchy? Flat files How were data retrieved before database management systems? Sequ...

File-based system correct answers A collection of application programs that perform services for the end-users, such as the production of reports. Each program defines and manages its own data. Each program defines and manages its own data Limitations of File-Based Approach correct answers -Separation and isolation of data -duplication of data -data dependence -incompatible file formats -fixed queries/proliferation of application programs. Database Approach correct answers Arose be...

Database correct answers A collection of related data; A shared collection of logically related data, and a description of this data, designed to meet the information needs of an organization DBMS (Database Management System) correct answers The software that manages and controls access to the database. Database application correct answers A program that interacts with the database at some point in its execution Traditional File Based System correct answers -each program defines and man...

WGU C170 Basic SQL EXAM 2023/2024/LATEST REAL EXAM An alias is especially useful when a table must be joined to itself in a(n) ___________________ query. - CORRECT ANSWER recursive The ___________ condition is generally composed of an equality comparison between the foreign key and the primary key of related tables. - CORRECT ANSWER join A database language enables the user to create database and table structures to perform basic data management chores. - CORRECT ANSWER TRUE ______...

DAD-220 Introduction to Structured Database Environments Exam Questions All Correctly Solved Data - Answer -Raw facts and values Information - Answer -Data that has been processed to give the facts meaning Three common sources of data - Answer -Social networks, business systems, internet of things Database - Answer -A collection of data in a structured format that correlates related data values. The database structure enables fast storing, retrieving, updating, and deleting of data. ...

C790 Practice Questions 1. Place the steps for the Staggers and Nelson life cycle in order from first (1) to last (4): o Implementation (3) o Analysis/planning (1) o Design/development (2) o Maintenance and support (4) 2. What describes the maintenance phase of the system development life cycle? • The system is upgraded o The system requirements are defined o The system undergoes a readiness assessment o The system user undergo education and training 3. During which phase of the sys...

cahims practice exam 2 questions with correct answers A party must be determined to be accountable for charges in the medical billing cycle. During which step of the cycle is the legal promise-to-pay relationship established? Reimbursement Coding Final settlement Registration Correct Answer-registration What is the main difference between certification and licensure in healthcare? Only licensure allows a clinician to legally practice in the issuing state. Certification and licensure ...

WGU D322 Introduction to IT Correct answers latest update Information Technology technology used in creating and making information accessible. IT Professional Roles Administration / Support System Administrator Maintains system (hardware, software, and programming) Network Administrator In charge of the computer network Database Administrator Focuses on the design, development, and support of DBMS Security Administrator Installs/administers firewall security to p...

A​ ________ is software that enables an organization to centralize​ data, manage them​ efficiently, and provide access to the stored data by application programs. A.database management system​ (DBMS) B.systems process C.word processor D.spreadsheet E.system network A.database management system​ (DBMS) ​A(n) ________ database makes it possible to store information across millions of machines in hundreds of data centers around the​ globe, with special​ time-keeping too...