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Database Chapter 1: Introduction

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Questions and Answers

What is a major problem with data duplication?

Requires more sophisticated programming techniques

Simplifies data retrieval processes

Leads to waste of space and maintenance headaches (correct)

Ensures data integrity across applications

Which of the following is NOT an advantage of the database approach?

Improved data sharing

Improved data quality

Program-data independence

Increased data redundancy (correct)

Which requirement is essential for the database approach?

Individual data maintenance by each programmer

A database management system (DBMS) (correct)

Non-standard file formats

Each application program needs its own processing routines

What is a key function of a Database Management System (DBMS)?

Managing data resources like an operating system manages hardware (D) Signup and view all the answers

Which of the following is a risk associated with the database approach?

Data security concerns (D) Signup and view all the answers

What type of graphical model shows the high-level entities for the organization and their relationships?

Enterprise Data Model (B) Signup and view all the answers

What type of relationship exists between one customer and many orders?

One-to-many (B) Signup and view all the answers

What is the purpose of special columns in the Pine Valley Furniture Company Access DB tables?

To provide links between tables (C) Signup and view all the answers

What is an example of a factor to consider when implementing a relational database?

The number of records involved (C) Signup and view all the answers

What is the 'Update' function in a database application?

Modify current database data (A) Signup and view all the answers