Quiz Jan 21 Flashcards
In a database, each table stores data about a different type of thing
True
The purpose of a data base is to help people keep track of things
True
In a database, each row in a spreadsheet has data about a particular instance
False
In every database, not just the database discussed in this book, tables names are capitalized
False
A database shows data in tables and the relationships among the rows in those tables
True
Data is recorded facts figures; information is knowledge derived from data
True
Databases record data in such a way that they can produce information
True
Enterprise Resource Planning (ERP) is an example of no data mining application
False
Databases are a key component of e-commerce order entry, billing, shipping and customer support
True
The largest database in e-commerce are the order entry databases
False
The e-commerce companies use Web activity database to determine which items on a Web page are popular and successful
True
Small databases typical have simple structures
False
A database system is typical defined as the four components users, database applications, the DBMS and databases
True
A database system as typically defined can be modified to include CODASYL
False
Applications are computer programs used directly by users
True
In a database system, applications write data to the database
False
Secondary Query Language (SQL) is an international recognized standard language that is understood by all commercial database management system products
False
In database systems, indexes are held by the database
True
A database management system (DBMS) creates, processes and administers databases
True
The database management system (DBMS) is responsible for inserting, modifying, reading, and deleting data
True
The database application is responsible for concurrency control
False
The database management system (DBMS) is responsible for enforcing referential integrity constraints
True
Referential integrity constraints are rules about what data values are allowed in certain columns
True
A database is a self-describing collection of non-integrated tables
False
Integrated tables store both data and the relationship among the data
True
Microsoft Access is just a DBMS
False
Microsoft Access is a low-end product intended for individuals and small workgroups
True
The current DBMS engine in Microsoft Access is called ADE
True
In Microsoft Access, you can use the Oracle DBMS in place of the ADE DBMS
False
All database applications get and put database data by sending SQL statements to the DBMS
True
A database is called “self-describing” because it reduces data duplication
False
The description of the database’s structure that stores within the database itself is called the “metadata”
True
In a database processing system, indexes are held by the database management system (DBMS)
True
The purpose of a database is to:
Help people keep track of things
A database stores
Data, relationship and metadata
A database records:
Facts and figures
A sales contact manager used by a salesperson is an example of a
Single -user database application
A Customer Resource Management (CRM) system is an example of a
Multiuser database application
An online drugstore such as Drugstore.com is an example of a
E-commerce database application
The industry standard supported by all major DBMSs that allows tables to be joined together is called
Structured Query Language (SQL)
A program whose job it is to create, process and administer databases is called the
Database Management System
Microsoft Access includes
A DBMS and an application generator
Microsoft Access may use which of the following DBMS engines?
ADE and SQL Server
In database systems, the DBMS
Inserts data, modifies data, deletes data
In database systems, the DBMS enforces rules about which data can be written in certain columns. The rules are known as
Referential integrity constraints
In database systems, the DBMS enforces rules which users can perform which action when. The rules are known as
Referential integrity constraints
A database is considered “self-describing” because
In contains a description of its own structure
A database consists of integrated tables, which store
Data and relationships among the data
In database systems, the database
Holds user data, holds metadata, holds indexes, holds stored procedures
A database may contain
Tables, megadata, triggers, stored procedures
In an Enterprise-class database system, a database application interacts with the DBMS
True
In an Enterprise-class database system, a database application accesses the database data
False
In an Enterprise-class database system, business users interact directly with the DBMS, which directly accesses the database data
False
The DBMS ranked as having the “most power and features” in the text us IBM’s DB2
False
The DBMS ranked as being the “easiest to use” in the text is Microsoft’s SQL Server
False
The DBMS ranked as being the “most difficult to use” in the text in Oracle Corporation’s Oracle Database
True
The DBMS ranked as having the “least power and features” in the text is Microsoft Access
True
Database design is important, but fortunately it is simple to do
False
A database deaf in may be a new systems development project
True
A database design is rarely a redesign of an existing database
False
Information systems that stored groups if records in separate files were called the file processing systems
True
Data Language/I (DL/I) structured data relationships as a tree structure
True
The CODASYL DBTG mode structured data relationships as a tree structure
False
The relational model was first proposed in 1970 by E. F. Codd at IBM
True
The 1977 edition of this text contained a chapter on the relational model, and the chapter was reviewed by E.F. Codd
True
dBase was the first PC-based DBMS to implement true relational algebra on a PC
False
Paradox is the only major survivor of the “bloodbath of PC DBMS products”
False
Business organizations have resisted adopting object-oriented database systems because the cost of purchasing OODBMS packages is prohibitively high
False
Bill Gates has said that “XML is the lingua-Franca of the Internet Age”
True
XML Web services allow database processing to be shared across the Internet
True
The NoSQL movement should really be called a NoRelational Movement
True
Twitter and Facebook use NoSQL databases
True
Which of the following are basic components of an enterprise-class database system
The user, the database application, the database management system (DBMS), the database
In an enterprise-class database system
The database application(s) interact(s) with the DBMS, and the DBMS accesses the database data
In an enterprise-class database system, the database application
Creates forums, creates reports
In dan enterprise-class database system, reports are created by
The database application
A database may be designed
From existing data, as a new systems development project, as a redesign of an existing database
A database designed using spreadsheets from the Sales department is a database being designed
From existing data
A database designed to implement requirements for a reporting application needed by the Sales department is a database being designed
As a new systems development project
A database designed to combine two databases used by the Sales department is a database being deigned
As a redesign of an existing database
Database professionals use _____ as specific data sources for studies and analyses
Data marts
Database professionals use a set of principles called ____ to guide and assess database design
Normalization
A very popular development technique used by database professionals for database design is known as
Entity-relationship data modeling
A very popular development technique is used. Y database professionals to adopt a database design to a new or changing requirement is know as
Data migration
The predecessor(s) of database processing was (were)
File managers
The relational model
Was first proposed in 1970, was developed by E.F. Codd, was developed at IBM, ears ultra in the DBMS product DB2
Modern microcomputer personal DBMS products
We’re essentially killed off by Microsoft Access
Business organizations have resisted adopting object-oriented database management systems because
The cost of converting data from relational databases to OODBMSs is too high, most large organizations have older applications that are not based on object orientated programming
For database development, the most important Web-related technology to emerge in recent years is
XML
For database development, a challenge to the relational model and the use of SQL has recently developed. This challenge is known as
The SOAP movement