Exam2-Part1-2007

7) A decision table does not include:

Statements

8) Assume we have three conditions. Condition one has two values; condition two has three values; condition three has three values. How many rules are needed?

a) 18

13) Which of the following is not a key step in logical database modeling and design?

a) Model how data flow through an information system, the relationships among the data flows, and how data come to be stored at specific locations.

18) For a binary many-to-many relationship existing between entity types A and B:

a) a separate relation C is created; the primary key of relation C is a composite key consisting of the primary key for each of the two entities in the relationship

17) A binary one-to-many relationship in an E-R diagram is best represented by:

a) adding the primary key attribute (or attributes) of the entity on the one side of the relationship as a foreign key in the relation that is on the many side of the relationship

9) A single occurrence of an entity type defines:

a) an entity instance

11) A named property or characteristic of an entity that is of interest to the organization defines a(n):

a) attribute

12) The number of instances of entity B that can (or must) be associated with each instance of entity A refers to:

a) cardinality

1) The diagram that shows the scope of the system, indicating what elements are inside and which are outside the system, is called a:

a) context diagram

5) Which of the following is not a logic model?

a) data flow diagrams

15) The three main constructs of the entity-relationship modeling notation include each of the following except:

a) data flows

24) The selection of devices that the users will use for interaction is made during:

a) design

10) A person, place, object, event, or concept in the user environment about which the organization wishes to maintain data refers to a(n):

a) entity

19) A business document that contains some predefined data and may include some areas where additional data are to be filled in best describes a:

a) form

16) Assume the structure of a relation is EMPLOYEE (Emp_ID, Name, Dept, Salary). The number of attributes for this relation would be:

a) four

4) In diagramming a system, the act of going from a single system to several component processes for that system refers to:

a) functional decomposition

22) When designing forms and reports, the user characteristic addresses:

a) issues related to experience, skills, motivation, education, and personality

23) A human-computer interaction method where inputs to and outputs from a computer-based application are in a conventional spoken language such as English refers to:

a) natural language interaction

14) The primary deliverable from logical database design is:

a) normalized relations

6) Modeling a system's logic is part of:

a) requirements structuring

20) Which of the following is not a method used for assessing a computer-based system's usability?

a) reviewing policies and procedures

21) The assessment of usability involves all of the following "P"s except which one?

b) platform

2) A file folder containing orders is represented on a data flow diagram as a:

d) data store

25) A formal method for designing and representing human-computer dialogues using box and line diagrams is referred to as:

d) dialogue diagramming

3) Calculating an employee's salary is represented on a data flow diagram as a:

process