test 3

Question 1

preventive maintenance

Answer 1

requires analysis of areas where trouble is likely to occur.

Question 2

What measures actual system performance under specific circumstances and is affected by network loads and hardware efficiency.

Answer 2

throughput

Question 3

The _____ is the configuration of a system documented at the beginning of the project and consists of all necessary system requirements and design constraints.

Answer 3

functional baseline

Question 4

Differnce between repsonse time and turnaround time?

Answer 4

Response time is the request between system activity and the delivery of the response

Turnaround time is between submtting an information request and getting that fulfilled

Question 5

The _____ describes a system at the beginning of system operation and includes the results of performance and acceptance tests for the operational system.

Answer 5

product bvaseline

Question 6

Differential backup

Answer 6

only backs up files that are new or changed since the last full backup.

Question 7

When a maintenance release methodology is used, all noncritical changes are held until they can be implemented at the ____ _____

Answer 7

same time

Question 8

What is TCO and how important are forecasts?

Answer 8

Total Cost of Ownership is the estimation of expenses associated with purchasing, deploying, using and retiring a product or piece of equipment.

An accurate forecast of TCO is critical, because nearly 80% of total costs occur after the purchase of the hardware and software.

Question 9

Capacity planning?

Answer 9

a process that monitors current activity and performance levels, anticipates the future, and forecasts resourced needed.

Question 10

system changeover?

Answer 10

the process of putting the new information system online and retiring the old system.

Question 11

During _____, existing data is loaded into the new system.

Answer 11

data conversion

Question 12

The environment for the actual system operation is called the _____.

Answer 12

operational environment

Question 13

After a systems analyst documents the system’s requirements, he or she breaks the system down into subsystems and modules in a process called ______

Answer 13

partitioning

Question 14

_____ is the amount of data that can be transferred in a fixed time period.

Answer 14

Bandwidth

Question 15

When an individual user works in _____, the workstation performs all the functions of a server by storing, accessing, and processing data as well as providing a user interface.

Answer 15

stand-alone mode

Question 16

_____ describes the actual network cabling and connections.

Answer 16

Physical topology

Question 17

In a typical system design specification, the _____ section contains the complete design for a new system, including the user interface, outputs, inputs, files, databases, and network specifications.

Answer 17

system components section

Question 18

In addition to centralized data processing, the earliest systems performed all data input and output at a central location, often called a _____.

Answer 18

data processing center.

Question 19

A web-based application _____ many of the connectivity and compatibility problems that typically arise when different hardware environments are involved.

Answer 19

avoids

Question 20

In contrast to a centralized system, a client/server design ______ applications and data.

Answer 20

separates

Question 21

A table design that contains a repeating group is called _____.

Answer 21

unnormalized

Question 22

One type of validity check, called _____ ______ , is a set of rules that avoids data inconsistency and quality problems.

Answer 22

referential integrity

Question 23

_____ means that a system can be expanded, modified, or downsized easily to meet the rapidly changing needs of a business enterprise.

Answer 23

Scalability

Question 24

_______ is the process of creating table designs by assigning specific fields or attributes to each table in the database.

Answer 24

normalizaiton

Question 25

_______ ______ refers to data that a user can view, understand, and access, regardless of how or where that information actually is organized or stored.

Answer 25

Logical storage

Question 26

_____ protects privacy rights and shields an organization’s proprietary data from theft or unauthorized access.

Answer 26

Output security

Question 27

A(n) _____ ______ produces one or more lines of output for each record processed.

Answer 27

detail report

Question 28

Printed output is used in _____ _____, which are output documents that are later entered back into the same or another information system.

Answer 28

turnaround documents

Question 29

A(n) _____ _____ is a data validation rule that can be used for data items that must have certain values.

Answer 29

validity check

Question 30

The ______ zone of a source document contains any required signatures.

Answer 30

authorization

Question 31

A _____ language feature allows users to type commands or requests in normal text phrases.

Answer 31

natural

Question 32

How much desktop computing power and resources does a traditional systems development environment take up?

Answer 32

Substantial

Question 33

_____ is a percentage rate that compares the total net benefits received from a project to the total costs of the project.

Answer 33

ROI (Return on Investment)

Question 34

The _____ of a project is the total value of the benefits minus the total value of the costs, with both costs and benefits adjusted to reflect the point in time at which they occur.

Answer 34

net present value (NPV)

Question 35

A _____ is a document that describes a company, lists the IT services or products needed, and specifies the features required.

Answer 35

request for proposal (RFP)

Question 36

A ______ design defines what must take place, not how it will be accomplished. ______ designs do not address the actual methods of implementation.

Answer 36

logical

Question 37

Typically, a ______design describes the actual processes of entering, verifying, and storing data; the ______layout of data files and sorting procedures; the format of reports; and so on.

Answer 37

physical

Question 38

A software package developed to handle information requirements for a specific type of business is called a(n) _____.

Answer 38

vertical application

Question 39

The _____ documents a system at the end of the design phase, identifies any changes since the beginning of the project, and includes testing and verification of all system requirements and features.

Answer 39

allocated baseline