Deck 4: Documenting Information Systems

Question 1

The following symbol represents general purpose input-output.

Answer 1

False

Question 2

The following symbol represents a paper file.

Answer 2

True

Question 3

A data flow diagram is a graphical representation of a system, which depicts the system's components, data flows and the sources, destinations and storage of data.

Answer 3

True

Question 4

The following symbol represents a disk

Question 5

Flowcharts are commonly used in financial audits, business process reengineering and security review engagements.

Question 6

Systems documentation is used to understand, explain, evaluate, and improve complex business processes, information systems, and internal controls.

Question 7

Internal entities are those persons, places, or things outside our system that send data to, or receive data from, our system.

Question 8

The following symbol represents a manual process

Question 9

The following symbol represents a document.

Question 10

The following symbol represents a computer process.

Question 11

A context diagram is a top-level diagram of a system that depicts the system and all its activities as a single bubble.

Question 12

In a data flow diagram, an external entity symbol portrays a source or a destination of data outside the system.

Question 13

In a data flow diagram, two parallel lines represent the data store symbol.

Question 14

Internal entities are those entities inside the system that send data to, or receive data from, the system.

Question 15

Data flow diagrams portray a business processes' activities, stores of data, and flows of data among those elements.

Question 16

System flowcharts use only four symbols.

Question 17

The advantage of a physical data flow diagram versus a logical data flow diagram is that we can concentrate on what activities a system is performing without having to specify how, where or by whom..

Question 18

In a data flow diagram, a bubble symbol shown below depicts an entity or a process within which incoming data flows are transformed into outgoing data flows.

Question 19

Data flow diagrams present a comprehensive picture of the management, operations, information systems and process controls embodied in business processes.

Question 20

In a data flow diagram, a square represents an internal entity.

Question 21

In data flow diagrams describing the accounting information system of a manufacturing company, the company's bank is most likely represented as a(n):

A)data flow
B)data store
C)external entity
D)process bubble

Question 22

A data flow diagram could contain each of the following symbols except:

A)a bubble or circle
B)an octagon
C)a square
D)a curved line with arrow head

Question 23

The successive subdivision, or exploding, of logical data flow diagrams is called bottom up partitioning.

Question 24

Which data flow diagram symbol is usually portrayed with a square?

A)data flow
B)data store
C)external entity
D)process bubble

Question 25

A physical data flow diagram uses bubbles to specify where, how, and by whom a system's processes are accomplished.

Question 26

Which data flow diagram symbol is usually portrayed with an arrow?

A)data flow
B)data store
C)external entity
D)process bubble

Question 27

In data flow diagrams describing the accounting information system of a consulting firm, a customer is most likely represented as a(n):

A)data flow
B)data store
C)external entity
D)process bubble

Question 28

Which of the following data flow diagram symbols is represented by two parallel lines?

A)data flow symbol
B)external entity symbol
C)sink symbol
D)data store symbol

Question 29

When the context diagram and the level 0 diagram have equivalent external data flows, the DFDs are said to be balanced.

Question 30

A systems flowchart is a graphical representation of both the physical and logical features of an information system.

Question 31

Information processing activities including retrieving data from a file, transforming data, or filing data.

Question 32

Which data flow diagram symbol portrays a source or destination of data outside the system?

A)data flow symbol
B)external entity symbol
C)bubble symbol
D)file symbol

Question 33

An acceptance stub is a data flow that leaves a bubble but does not go to any other bubble or file and indicates processing that is performed in other than normal situations.

Question 34

A symbol used in data flow diagrams to depict an entity or process within which incoming data flows are transformed into outgoing data flows is a(n):

A)data flow symbol
B)external entity symbol
C)bubble symbol
D)file symbol

Question 35

When we convert to an enterprise system, reengineered processes often result from the installation and can cause changes throughout the systems flowcharts.

Question 36

In data flow diagrams describing the accounting information system of a medical practice, a patient is most likely represented as a(n):

A)data flow
B)data store
C)external entity
D)process bubble

Question 37

Which data flow diagram symbol is usually portrayed with a circle?

A)data flow
B)data store
C)external entity
D)process bubble

Question 38

An external entity is a person, place, or thing within the system that transforms data.

Question 39

Processes that handle other-than-normal situations are called exception routines.

Question 40

In an enterprise system, we would have one data store/disk symbol that would be labeled "enterprise database" instead of two or more data store symbols.

Question 41

Information processing activities include:

A)only automated activities
B)activities that retrieve, transform, and file data
C)the sending of data between entities
D)operational activities

Question 42

Those entities which perform no information processing activities for the system are called:

A)external entities
B)internal entities
C)boundary entities
D)environmental entities

Question 43

In which of the following data flow diagrams does the bubble symbol represent a process and not the entire system?

A)context diagram
B)physical data flow diagram
C)logical data flow diagram
D)systems flowchart

Question 44

Which of the following is the least detailed of the data flow diagrams?

A)logical data flow diagram
B)systems flowchart
C)context diagram
D)physical data flow diagram

Question 45

Data flow labels in context diagrams usually describe:

A)what the data are (physical labels)
B)the nature of the data (logical labels)
C)to whom the data are being transmitted (identity labels)
D)where the data are being sent (directional labels)

Question 46

Which of the following statements related to the construction of data flow diagrams is false?

A)The level 0 diagram is the next level down from the context diagram.
B)If the level 0 diagram has one arrow going into bubble number 1.0 and two arrows leaving bubble number 1.0, then diagram 1.0 will show one arrow entering and two arrows leaving.
C)Sources and destinations are depicted by parallel horizontal lines, between which the name of the entity is shown.
D)Arrows represent a pathway for data.

Question 47

A person, place, or thing within a system that transforms data is called:

A)external entity
B)relevant environment
C)internal entity
D)boundary

Question 48

In a physical data flow diagram, this is something within the system that transforms data.

A)data flow
B)data store
C)external entity
D)internal entity

Question 49

In a logical data flow diagram for a cash receipts system, each of the following labels might appear in a bubble except:

A)cashier
B)capture cash receipts
C)endorse checks
D)update master files

Question 50

On a systems flowchart, computer processing is represented by a:

A)square
B)trapezoid
C)rectangle
D)parallelogram

Question 51

When two data flow diagrams have equivalent external data flows, we say that the two data flow diagrams are:

A)congruent
B)similar
C)balanced
D)equal

Question 52

Why do auditors and systems analysts use systems documentation?

A)to understand, explain, and improve complex systems
B)only to provide justification to management for systems investments
C)to reduce the number and amount of external entities
D)to eliminate evidence to be collected

Question 53

In a physical data flow diagram, a bubble or circle could be used to specify each of the following except:

A)where a process is performed
B)how a process is performed
C)by whom a process is performed
D)what process is performed

Question 54

Which data flow diagram shows what activities the system is performing without having to specify how, where, or by whom the activities are accomplished?

A)context diagram
B)physical data flow diagram
C)systems flowchart
D)logical data flow diagram

Question 55

Which symbol can be either an entity or a process depending on the type of DFD?

A)bubble symbol
B)external entity symbol
C)data flow symbol
D)file symbol

Question 56

A process in which successive layers of data flow diagrams are constructed by "exploding" the bubbles on a less detailed DFD to show more detailed data flows is called:

A)top-down partitioning
B)serial expansion
C)balanced construction
D)expanded data flows

Question 57

Which type of data flow diagram specifies where, how, and by whom a system's processes are performed?

A)context diagram
B)physical data flow diagram
C)logical data flow diagram
D)systems flowchart

Question 58

The data flows in a logical flow diagram show:

A)how the data are transmitted
B)where the data are transmitted
C)the nature of the data being transmitted
D)who receives the transmitted data

Question 59

On a systems flowchart, a paper file is represented by a:

A)triangle
B)cylinder
C)rectangle
D)pentagon

Question 60

A systems flowchart varies from a data flow diagram because it:

A)only represents the information system
B)only represents the operations system
C)only represents the management system
D)represents the management system, the operations system, and the information system

Question 61

An information processing activity could be any of the following except:

A)sending or receiving data
B)preparing documents
C)data entry
D)verifying data

Question 62

The following systems flowchart describes how a user enters business event data from a source document to update master file data.Which statement describes whether the systems flowchart was created properly?

A)The systems flowchart was created properly.
B)Only a single disk must be used to represent the master data.
C)The every day symbol should be connected with a solid line.
D)The data flows should move from the left to right.

Question 63

The following is a jumbled list of the activities suggested in this text for drafting data flow diagrams for an existing system: The best sequence for undertaking these activities is:

A)I, II, V, III, IV
B)I, V, III, II, IV
C)II, I, III, V, IV
D)II, IV, III, I, V

Question 64

Which of the following systems flowcharting symbols descriptions is incorrect?

A)general purpose input-output
B)manual process
C)multiple-page document
D)punched card

Question 65

Which of these represent a comprehensive picture of management, operations and information systems?

A)entity relationship diagram
B)logical data flow diagram
C)physical data flow diagram
D)systems flowchart

Question 66

When a transaction cannot be processed in a routine fashion because of an error or other processing problems, the transaction must be handled by a(n):

A)rejection routine
B)change report
C)exception and summary report
D)exception routine

Question 67

To make a logical data flow diagram readable, how many bubbles should be used?

A)one to three
B)five to seven
C)eight to ten
D)as many as needed but no more than ten

Question 68

Which statement concerning the following 1.0 data flow diagram is true?

A)The data flow diagram follows DFD guidelines.
B)An arrow should never leave a bubble with no destination.
C)Data should only flow from a data store.
D)Level 1.0 diagrams should show the external entities.

Question 69

Examine the following context diagram and the related level 0 logical data flow diagram.Which of the following statements is true?

A)The data flow diagrams are prepared correctly.
B)A context diagram must have a least two external entities.
C)The logical data flow diagrams are not balanced.
D)The logical data flow diagram must have 5 to 7 processes.

Question 70

Which of the following systems flowcharting symbol descriptions is incorrect?

A)disk
B)computer process
C)manual process
D)display

Question 71

All of the following are "guidelines" for grouping activities in a level 0 DFD except:

A)group activities if they occur in the same place and at the same time
B)group activities if they occur at different times in the same place
C)group activities if they occur at the same time but in different places
D)group activities that seem to be logically related

Question 72

Which of the following segments violates guidelines for creating systems flowcharts? a.Segment a.b.Segment b.c.Segment c.d.Segment d.

Question 73

Which of the following systems flowcharting symbols descriptions is incorrect?

A)tape
B)on-page connector
C)start/stop
D)paper file

Question 74

The following systems flowchart describes how a manager queries a data store to view information on a computer screen.Which statement describes whether the systems flowchart was created properly?

A)The systems flowchart was created properly.
B)Only a single direction arrow should flow from the data store symbol to the process query symbol.
C)The input query symbol should be a square.
D)The input query symbol should be in the computer column.

Question 75

On a systems flowchart, a solid line with an arrow indicates a(n):

A)batch total
B)telecommunications link
C)off-page connector
D)logical flow

Question 76

The following systems flowchart describes how a data entry clerk key enters data on a source document into business event data.Which statement describes whether the systems flowchart was created properly?

A)The systems flowchart was created properly.
B)The arrow between the computer process and the data store should be bi-directional.
C)The computer process should be shown in the computer column.
D)The second symbol in the data entry clerk column should be a square.

Question 77

On a logical data flow diagram, data flows:

A)always go from a higher-numbered to a lower-numbered bubble
B)never go from a higher-numbered to a lower-numbered bubble
C)can go in either direction as needed
D)must go from a bubble to a box

Question 78

The flow of processes on a system flowchart is from:

A)left to right
B)right to left
C)bottom to top
D)either a.or b.

Question 79

How many circles (bubbles) are included in a correctly drawn context diagram?

A)zero
B)one
C)three
D)more than one but no more than are necessary to model the system

Question 80

In drawing a context diagram, we should include:

A)only exception routines
B)only error routines
C)only normal processing routines
D)only normal processing and exception routines