Question 1

Diagram 0 (the numeral zero,and not the letter O)provides an overview of all the components that interact to form the overall system.

Accepted Answer

A) True 
 B)False

Question 2

On lower-level diagrams with multiple processes,there should not be more than nine process symbols.

Accepted Answer

A) True 
 B)False

Question 3

In a data flow diagram (DFD) ,the Gane and Sarson symbol for a process is a _____.

Accepted Answer

A)   rectangle with rounded corners
B)   line with a single or double arrowhead
C)   flat rectangle that is open on the right side and closed on the left side
D)   rectangle,which may be shaded to make it look three-dimensional

Question 4

_____ is the process of drawing a series of increasingly detailed data flow diagrams (DFDs) ,until all functional primitives are identified.

Accepted Answer

A)   Leveling
B)   Balancing
C)   Indexing
D)   Looping

Question 5

Data stores are shown in a context diagram because data stores are external to the system.

Accepted Answer

A) True 
 B)False

Question 6

The symbol for a data flow is a triangle.

Accepted Answer

A) True 
 B)False

Question 7

The iteration structure is the completion of _____.

Accepted Answer

A)   one or more process steps based on the results of a test or condition
B)   steps in a chronological order,one after another
C)   a process step that is repeated until a specific condition changes
D)   a specific condition that is repeated until a process changes

Question 8

Since diagram 0 is a(n) _____ version of process 0,it shows considerably more detail than a context diagram.

Accepted Answer

A)   contracted
B)   exploded
C)   condensed
D)   extrapolated

Question 9

In a data flow diagram (DFD) ,a black hole is a process that has _____.

Accepted Answer

A)   no input
B)   at least one output and one input,but the output obviously is insufficient to generate the input shown
C)   no output
D)   at least one input and one output,but the input obviously is insufficient to generate the output shown

Question 10

Data flow diagram entities also are called terminators because they are data origins or final destinations.

Accepted Answer

A) True 
 B)False

Question 11

A _____ shows a logical structure,with all possible combinations of conditions and resulting actions.

Accepted Answer

A)   pseudo table
B)   database table
C)   decision table
D)   validation table

Question 12

Data flow diagram (DFD) entities are also called _____ because they are data origins or final data destinations.

Accepted Answer

A)   data stores
B)   pseudocodes
C)   terminators
D)   gray holes

Question 13

A decision tree is read from left to right,with the conditions along the various branches and the actions at the far left.

Accepted Answer

A) True 
 B)False

Question 14

A _____ is logically impossible in a data flow diagram (DFD) because a process must act on input,shown by an incoming data flow,and produce output,represented by an outgoing data flow.

Accepted Answer

A)   spontaneous combustion
B)   gray matter
C)   black hole
D)   server farm

Question 15

Typical process description tools include _____.

Accepted Answer

A)   context diagrams
B)   decision trees
C)   pseudocode
D)   database tables

Question 16

When a data flow diagram (DFD)is exploded,the higher-level diagram is called the child diagram.

Accepted Answer

A) True 
 B)False

Question 17

The disadvantage of the four-model approach is that ____.

Accepted Answer

A)   it gives an unclear picture of the current system functions before any modifications or improvements are made
B)   the requirements of a new information system always are different from the current information system
C)   additional time and money are required to develop a logical and physical model of the current system
D)   it does not take additional steps to avoid mistakes made earlier in systems development

Question 18

The end product of data and process modeling is a logical model that will support business operations and meet user needs.

Accepted Answer

A) True 
 B)False

Question 19

By showing processes as _____,an analyst can create data flow diagrams (DFDs) that show how the system functions but avoid unnecessary detail and clutter.

Accepted Answer

A)   black boxes
B)   process descriptions
C)   business rules
D)   decision tables

Question 20

To draw a context diagram,you start by placing a single process symbol on the top right corner of the page.

Accepted Answer

A) True 
 B)False

Exam 5: Data and Process Modeling

Data flow diagram entities also are called terminators because they are data origins or final destinations.

Correct AnswerverifiedShow Answer

The end product of data and process modeling is a logical model that will support business operations and meet user needs.

Correct AnswerverifiedShow Answer

The iteration structure is the completion of _____.

Correct AnswerverifiedShow Answer

_____ is the process of drawing a series of increasingly detailed data flow diagrams (DFDs) ,until all functional primitives are identified.

Correct AnswerverifiedShow Answer

Data flow diagram (DFD) entities are also called _____ because they are data origins or final data destinations.

Correct AnswerverifiedShow Answer

By showing processes as _____,an analyst can create data flow diagrams (DFDs) that show how the system functions but avoid unnecessary detail and clutter.

Correct AnswerverifiedShow Answer

When a data flow diagram (DFD)is exploded,the higher-level diagram is called the child diagram.

Correct AnswerverifiedShow Answer

In a data flow diagram (DFD) ,a black hole is a process that has _____.

Correct AnswerverifiedShow Answer

Since diagram 0 is a(n) _____ version of process 0,it shows considerably more detail than a context diagram.

Correct AnswerverifiedShow Answer

Diagram 0 (the numeral zero,and not the letter O)provides an overview of all the components that interact to form the overall system.

Correct AnswerverifiedShow Answer

The symbol for a data flow is a triangle.

Correct AnswerverifiedShow Answer

A _____ is logically impossible in a data flow diagram (DFD) because a process must act on input,shown by an incoming data flow,and produce output,represented by an outgoing data flow.

Correct AnswerverifiedShow Answer

A _____ shows a logical structure,with all possible combinations of conditions and resulting actions.

Correct AnswerverifiedShow Answer

On lower-level diagrams with multiple processes,there should not be more than nine process symbols.

Correct AnswerverifiedShow Answer

A decision tree is read from left to right,with the conditions along the various branches and the actions at the far left.

Correct AnswerverifiedShow Answer

To draw a context diagram,you start by placing a single process symbol on the top right corner of the page.

Correct AnswerverifiedShow Answer

The disadvantage of the four-model approach is that ____.

Correct AnswerverifiedShow Answer

Typical process description tools include _____.

Correct AnswerverifiedShow Answer

In a data flow diagram (DFD) ,the Gane and Sarson symbol for a process is a _____.

Correct AnswerverifiedShow Answer

Data stores are shown in a context diagram because data stores are external to the system.

Correct AnswerverifiedShow Answer

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