Deck 14: Maintaining Information Systems

Question 1

In which SDLC phase are changes made to a system to fix or enhance its functionality?

A)Design
B)Planning
C)Analysis
D)Maintenance

Answer 1

D

Question 2

In which maintenance type are changes made to a system to evolve its functionality to changing business needs or technologies?

A)Adaptive
B)Corrective
C)Perfective
D)Preventive

Answer 2

A

Question 3

As with the initial development of the system,implemented changes are formally reviewed and not tested before installation into operational systems.

Answer 3

False

Question 4

In which maintenance type are changes made to a system to add new features or to improve performance?

A)Adaptive
B)Corrective
C)Perfective
D)Preventive

Question 5

Which SDLC phase is analogous to the maintenance process of obtaining a maintenance request?

A)Design
B)Planning
C)Analysis
D)Maintenance

Question 6

Contrary to corrective maintenance,________ maintenance is generally a small part of an organization's maintenance effort,but it adds value to the organization.

A)Adaptive
B)Corrective
C)Perfective
D)Preventive

Question 7

Once a maintenance request is received,________ must be conducted to gain an understanding of the scope of the request.

A)Design
B)Planning
C)Analysis
D)Maintenance

Question 8

The maintenance phase is the ________ phase of the systems development life cycle.

A)First
B)Last
C)Third
D)Fourth

Question 9

In the maintenance phase,the systems development group is responsible for collecting maintenance requests from the network management staff.

Question 10

Implementing changes and designing changes are not major maintenance activities.

Question 11

When ________ maintenance problems surface,they are typically urgent and need to be resolved to curtail possible interruptions in normal business activities.

A)Adaptive
B)Corrective
C)Perfective
D)Preventive

Question 12

Most companies have some sort of document like a(n)________ to request new development,to report problems,or to request new features within an existing system.

A)User document
B)System Service Request
C)Installation guide
D)System document

Question 13

Which maintenance adds little or no value to the organization and simply focuses on removing defects from an existing system without adding new functionality?

A)Adaptive
B)Corrective
C)Perfective
D)Preventive

Question 14

Which activity in the maintenance phase requires that a formal process be established whereby users can submit system change requests?

A)Obtaining maintenance requests
B)Transforming requests into changes
C)Implementing changes
D)Designing changes

Question 15

Of all types of maintenance,which maintenance accounts for as much as 75 percent of all maintenance activity according to Andrews and Leventhal?

A)Adaptive
B)Corrective
C)Perfective
D)Preventive

Question 16

________ maintenance is usually less urgent than corrective maintenance because business and technical changes typically occur over some period of time.

A)Adaptive
B)Corrective
C)Perfective
D)Preventive

Question 17

Which maintenance involves making enhancements to improve processing performance or interface usability or to add desired,but not necessarily required,system features?

A)Adaptive
B)Corrective
C)Perfective
D)Preventive

Question 18

Which process can begin soon after the system is installed?

A)Design
B)Planning
C)Analysis
D)Maintenance

Question 19

Once an information system is installed,the system is essentially in which phase of the systems development life cycle (SDLC)?

A)Design
B)Planning
C)Analysis
D)Maintenance

Question 20

In which maintenance type are changes made to a system to repair flaws in its design,coding,or implementation?

A)Adaptive
B)Corrective
C)Perfective
D)Preventive

Question 21

Adaptive,perfective,and preventive maintenance activities can lead to ________ maintenance activities if not carefully designed and implemented.

A)Adaptive
B)Corrective
C)Perfective
D)Preventive

Question 22

Contrary to corrective maintenance,adaptive maintenance is generally the largest part of an organization's maintenance effort,but it does not add value to the organization.

Question 23

How can one distinguish between development and maintenance?

Question 24

Maintainability is the ease with which ________ can be understood,corrected,adapted,and enhanced.

A)Error
B)Network
C)Hardware
D)Software

Question 25

Adaptive maintenance is usually less urgent than corrective maintenance because business and technical changes typically occur over some period of time.

Question 26

According to Nash,the standard cost of maintenance for most ERP vendors is ________ percent annually.

A)15
B)48
C)22
D)63

Question 27

List the four types of maintenance.

Question 28

In perfective maintenance,changes are made to a system to add new features or to improve performance.

Question 29

Which maintenance involves changes made to a system to reduce the chance of future system failure?

A)Adaptive
B)Corrective
C)Perfective
D)Preventive

Question 30

In situations where a company has not developed its systems in-house but instead has licensed software,as in the case of ERP systems,maintenance costs remain ________.

A)High
B)Low
C)Same
D)Negligible

Question 31

Once a maintenance request is received,design must be conducted to gain an understanding of the scope of the request.

Question 32

When corrective maintenance problems surface,they are typically urgent and need to be resolved to curtail possible interruptions in normal business activities.

Question 33

What are the four major activities that occur within maintenance?

Question 34

A new system is developed when there is a change in the hardware or software platform or when fundamental assumptions and properties of the data,logic,or process models change.

Question 35

In corrective maintenance,changes are made to a system to evolve its functionality to changing business needs or technologies.

Question 36

Perfective maintenance involves making enhancements to improve processing performance or interface usability or to add desired,but not necessarily required,system features.

Question 37

Many systems professionals feel that ________ maintenance is not really maintenance but rather new development.

A)Adaptive
B)Corrective
C)Perfective
D)Preventive

Question 38

Systems with ________ maintainability result in uncontrollable maintenance expenses.

A)High
B)Low
C)Medium
D)Negligible

Question 39

Because the maintenance phase of the SDLC is basically a subset of the activities of the entire development process,the deliverables and outcomes from the process are the development of a new version of the software and new versions of all design documents developed or modified during the maintenance process.

Question 40

Preventive maintenance adds little or no value to the organization and it simply focuses on removing defects from an existing system without adding new functionality.

Question 41

MTBF stands for ________.

A)Maintenance time between failures
B)Mean time between failures
C)Medium time between failures
D)Maintainability time between failures

Question 42

High-quality documentation leads to a(n)________ percent reduction in the system maintenance effort when compared with average-quality documentation.

A)50
B)60
C)70
D)80

Question 43

"Personnel has a vested interest in effectively maintaining the system and has a better understanding of functional requirements" is an advantage of which maintenance organizational structure?

A)Separate
B)Non-functional
C)Combined
D)Functional

Question 44

Over the life of a system,corrective maintenance is most likely to occur after initial system installation or after major system changes.This means that adaptive,perfective,and preventive maintenance activities can lead to corrective maintenance activities if not carefully designed and implemented.

Question 45

What is maintainability? Identify several factors that influence the maintainability of a system.

Question 46

There are various types of maintenance requests-some correct minor or severe defects in the systems,whereas others improve or extend system functionality.

Question 47

"Personnel may have limited job mobility and lack access to adequate human and technical resources" is a disadvantage of combined maintenance organizational structures.

Question 48

Number of failures is one of the factors for measuring maintenance effectiveness.

Question 49

"All things cannot be documented,so the maintenance group may not know critical information about the system" is a disadvantage of which maintenance organizational structure?

A)Separate
B)Non-functional
C)Combined
D)Functional

Question 50

Tools that can automatically generate new code based on system specification changes can dramatically ________ maintenance time and costs.

A)Increase
B)Reduce
C)Stop
D)Start

Question 51

MTBF is a measurement of ________ occurrences that can be tracked over time to indicate the quality of a system.

A)Maintenance
B)Quality
C)Effort
D)Error

Question 52

Measuring the number of and time between failures will provide you with the basis to calculate a widely used measure of system quality.This metric is referred to as ________.

A)Mean time between failures
B)Maintenance time between failures
C)Medium time between failures
D)Maintainability time between failures

Question 53

"Documentation and testing thoroughness may suffer due to a lack of a formal transfer of responsibility" is a disadvantage of which maintenance organizational structure?

A)Separate
B)Non-functional
C)Combined
D)Functional

Question 54

"Maintenance group knows or has access to all assumptions and decisions behind the system's original design" is an advantage of which maintenance organizational structure?

A)Separate
B)Non-functional
C)Combined
D)Functional

Question 55

Quality documentation makes it easier to find code that needs to be changed and to understand how the code needs to be changed,and good documentation also explains why a system does what it does and why alternatives were not feasible,which saves wasted maintenance efforts.

Question 56

Which maintainability factor specifies the number of unknown errors existing in the system after it is installed?

A)Latent defects
B)Number of customers
C)Quality of system documentation
D)Maintenance personnel

Question 57

What are the factors that influence maintainability of a system? Which ones are the most significant?

Question 58

"Formal transfer of systems between groups improves the system and documentation quality" is an advantage of which maintenance organizational structure?

A)Separate
B)Non-functional
C)Combined
D)Functional

Question 59

"Personnel may have limited job mobility and lack access to adequate human and technical resources" is a disadvantage of which maintenance organizational structure?

A)Separate
B)Non-functional
C)Combined
D)Functional

Question 60

Time between each failure and type of failure are never helpful for measuring maintenance effectiveness.

Question 61

________ is/are needed to construct any version of the system that has ever existed.

A)Change requests
B)Build routines
C)Baseline modules
D)Configuration management

Question 62

The process of ensuring that only authorized changes are made to a system is known as ________.

A)Change request
B)Build routines
C)Baseline modules
D)Configuration management

Question 63

Who is responsible for keeping copies of all prior versions of all system modules,including the build routines?

A)System Priority Board
B)Librarian
C)Project manager
D)Organization

Question 64

Automated tools that read program source code as input; perform an analysis of the program's data and logic; and then automatically,or interactively with a systems analyst,alter an existing system in an effort to improve its quality or performance are known as ________.

A)Reverse engineering
B)Reengineering
C)Performance engineering
D)Designing

Question 65

________ tools allow one to trace an executable code module back to its original source code version,greatly speeding the identification of programming errors.

A)Change request
B)Build routines
C)Baseline modules
D)Configuration management

Question 66

It may be necessary to ________ a Web site with search engines when the content of the site changes significantly.

A)Update
B)Configure
C)Reregister
D)HTML validate

Question 67

Before modified or new pages are published,pages should be processed by a code validation routine to ensure that all the code,including applets,works.This is known as _________.

A)HTML validation
B)Reregistration
C)Broken link check
D)Future edition

Question 68

Before any code can be checked back in to the librarian,the code must pass the quality control procedures,testing,and documentation standards established by the ________.

A)Librarian
B)Maintenance personnel
C)Project manager
D)Organization

Question 69

Automated tools that read program source code as input and create graphical and textual representations of design-level information such as program control structures,data structures,logical flow,and data flow are known as ________.

A)Reverse engineering
B)Reengineering
C)Performance engineering
D)Designing

Question 70

Who is responsible for controlling the checking out and checking in of baseline modules for a system when a system is being developed or maintained?

A)System Librarian
B)System Priority Board
C)Maintenance Staff
D)Project Manager

Question 71

A primary objective of using automated tools for systems development and maintenance is to radically change the way in which ________ and documentation are modified and updated.

A)Test plan
B)Code
C)Software
D)Functionality

Question 72

If the MTBF does not rapidly ________ over time,it will be a signal to management that major problems exist within the system that are not being adequately resolved through the maintenance process.

A)Increase
B)Decrease
C)Slow
D)Stop

Question 73

________ is/are the guidelines that list the instructions to construct an executable system from the baseline source code.

A)Change request
B)Build routines
C)Baseline modules
D)Configuration management

Question 74

Who receives the maintenance request when an organizational group that uses the system will make a request to change the system?

A)System Priority Board
B)Maintenance Staff
C)Project Manager
D)Other Groups

Question 75

Who categorizes and prioritizes the maintenance request in relation to both the strategic and information systems plans of the organization?

A)System Priority Board
B)Maintenance Staff
C)Project Manager
D)Other Groups

Question 76

When using an integrated development environment,________ maintain(s)design documents such as data flow diagrams and screen designs,not source code.

A)The testing team
B)The developer
C)Analysts
D)The project manager

Question 77

________ tools are those that can create a representation of a system or program module at a design level of abstraction.

A)Configuration management
B)Reengineering
C)Reverse engineering
D)Build routines

Question 78

Which tools have a primary benefit to create high-level design documents of a program by reading and analyzing its source code?

A)Design recovery
B)Build routines
C)Baseline modules
D)Configuration management

Question 79

On a periodic basis,who prepares a report of all pending tasks in the change request queue?

A)System Priority Board
B)Maintenance Staff
C)Project Manager
D)Other Groups

Question 80

If ________ is/are assigned to make changes to a system,they must first check out a copy of the baseline system modules since no one is allowed to directly modify the baseline modules.

A)System Priority Board
B)Maintenance personnel
C)A project manager
D)Other groups