Question

Indicate whether the statement is true or false

Answer 1

FALSE

Answer 2

FALSE

Answer 3

D

Answer 4

FALSE

Answer 5

A data dictionary contains a list of all the database objects such as tables, and the structure and data types for each of the columns in the tables. This can be valuable for future developers working with the database. It can also be used to help reconstruct the database in case of disaster.

Answer 6

A

Answer 7

Media richness measures how well a communication medium can reproduce all the nuances and subtleties of the message it transmits. Media richness is usually starkly lower online than face-to-face. Many communications are text only, leaving out facial expression, eye contact, voice pitch and tempo, gestures, body posture, and hand gestures. Although words carry meaning, most of what people communicate is actually nonverbal.

Answer 8

B

Answer 9

A

Answer 10

Operational processes are commonplace, routine, everyday business processes. At a pizza shop, for example, these include ordering supplies, paying bills, and checking out customers. The procedures, or instructions, for these processes are changed very infrequently. Typically there are more computerized actors in an operational process than in other types of processes. Finally, because many actors contribute to this process, changing operational processes is more difficult than changing other types of processes. Information systems that facilitate operational processes are sometimes called transaction processing systems (TPS).

Answer 11

The QWERTY layout popularly used in typewriters was originally designed to slow down data entry to prevent collisions of the hammers striking the paper. Since the first keyboard layouts were based on the QWERTY layout used in typewriters, they were not designed to maximize typing speed. Attempts to introduce a better design failed because many people already knew the QWERTY layout.

Answer 12

D

Answer 13

B

Answer 14

D

Answer 15

FALSE

Answer 16

D

Answer 17

A

Answer 18

A

Answer 19

D

Answer 20

B

Answer 21

A

Answer 22

A

Answer 23

TRUE

Answer 24

FALSE

Answer 25

C

Answer 26

One of the first things that should be considered is the database management system's compatibility with the hardware and software of the current system. If a system is incompatible then the company must evaluate if the database management system is worth changing or upgrading the current system. Another consideration is the set of features offered by the Database software. There may be features that make it compelling or necessary to a company. The training and experience of the IT Staff should be considered as well as the overall cost of the program. Finally, issues of reliability and support should be weighed.

Answer 27

C
Explanation: C) Modularity results in smaller and less complex systems.

Answer 28

FALSE

Answer 29

TRUE

Answer 30

FALSE

Answer 31

FALSE

Answer 32

The business environment has drastically changed since the relational model was first introduced in the 1970s. Business relationships are more complex, and organizations must have ways to represent data to represent the complexity. Organizations must be prepared to segment their markets as well as customize their products. The enhanced E-R model has evolved to represent these changes and also is similar to the object-oriented data model.