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PT2520
Database Concepts

GRADED ASSIGNMENTS

Graded Assignment Requirements

This document includes all of the assignment requirements for the graded assignments in this course. Your instructor will provide the details about when each assignment is due.

Unit 1 Assignment 1: Homework
Learning Objectives and Outcomes
 Describe the role of software for computers.
 Identify the hardware associated with a computer.
 Describe how computers store data.
 Explain how programs work.
 Differentiate among machine language, assembly language, and high-level languages.
 Differentiate between compilers and interpreters.
 Identify the different types of software.

Assignment Requirements
Answer the following true-or-false questions.

Required Resources
 Textbook

Submission Requirements
Submit your answers on the answer sheet provided to your instructor at the beginning of Unit 2. Unit 1 True/False Questions
Indicate whether the following statements are true or false on the student answer sheet.

1) At its simplest, a database can be seen as a collection of related data.

2) A delimited file is a file where the length of the file is limited.

3) A delimited file is one in which the data is separated by a character such as a comma.

4) All fixed length files are of the same length.

5) In relational databases, logical design is kept separate from physical design.

6) A hierarchical database is designed with a tree-like structure that resembles a file system.

7) Codd defined the core principles of a relational database in 1970.

8) Data redundancy improves the integrity of a database.

9) In a diagram, crows feet notation conveys more information about the relationships.

10) A primary key uniquely identifies each row in a database table.

11) In a relational database, all data is kept in…...

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