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Consider the partial data flow diagram below: Consider the partial data flow diagram below: Which of the following is most true? A) The data flow diagram is correctly prepared. B) The process appears to make something from nothing. C) The word customer appears too much. D) The data flow is incorrectly labeled. Which of the following is most true?


A) The data flow diagram is correctly prepared.
B) The process appears to make something from nothing.
C) The word "customer" appears too much.
D) The data flow is incorrectly labeled.

E) All of the above
F) B) and C)

Correct Answer

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Which of the following are concerned with data: (i) data flow diagrams, (ii) flowcharts.


A) i only.
B) ii only.
C) Both i and ii.
D) Neither i nor ii.

E) A) and B)
F) B) and C)

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A data flow diagram process is numbered "1.2." Which of the following is/are true: (i) the data flow diagram contains at least one other process, (ii) the data flow diagram is a Level Two diagram.


A) i only.
B) ii only.
C) Both i and ii.
D) Neither i nor ii.

E) B) and D)
F) All of the above

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Indicate whether each of the statements applies to:

Premises
"Marketing department" and "customer" denoted by rectangles.
Column headings read "marketing department" and "customer".
Contains four different symbol types.
Document is read from left to right.
Incorporates more than four symbol types.
Line is labeled "send data to accounting".
Processing tools, such as computers, are clearly indicated.
Rectangle is labeled "1.0: assemble raw materials".
Spans more than one page.
Vendor database is represented by two parallel lines.
Responses
data flow diagrams only
flowcharts only
both data flow diagrams and flowcharts
neither data flow diagrams nor flowcharts

Correct Answer

"Marketing department" and "customer" denoted by rectangles.
Column headings read "marketing department" and "customer".
Contains four different symbol types.
Document is read from left to right.
Incorporates more than four symbol types.
Line is labeled "send data to accounting".
Processing tools, such as computers, are clearly indicated.
Rectangle is labeled "1.0: assemble raw materials".
Spans more than one page.
Vendor database is represented by two parallel lines.

Identify the purpose and nature of each symbol type used in the data flow diagram.

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Rectangles (such as "customer") represen...

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-How many of the symbols above would be numbered in a flowchart? A) None. B) One. C) Two. D) Four. -How many of the symbols above would be numbered in a flowchart?


A) None.
B) One.
C) Two.
D) Four.

E) B) and C)
F) C) and D)

Correct Answer

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Which of the following violates the rules for preparing a data flow diagram?


A) "Order data" enters the "take customer order process," but "processed order" leaves it.
B) A data flow diagram contains eight processes.
C) "Customer information" enters a "customer database," but nothing leaves the database.
D) A line is labeled "enter customer data".

E) All of the above
F) C) and D)

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Several items that might appear in a data flow diagram and the common symbols associated with data flow diagrams appear below. Match each item with the most appropriate symbol.

Premises
Assemble raw materials.
Credit decision.
Customer.
Customer database.
Customer information.
Deliver merchandise.
Inventory database.
Marketing department.
Prepare purchase order.
Shipped items.
Responses
Arrow.
Circle.
Parallel lines.
Rectangle.

Correct Answer

Assemble raw materials.
Credit decision.
Customer.
Customer database.
Customer information.
Deliver merchandise.
Inventory database.
Marketing department.
Prepare purchase order.
Shipped items.

The processes in a Level Zero data flow diagram are numbered:


A) 0.1, 0.2 and so on.
B) 1.1, 2.1 and so on.
C) 1.0, 2.0 and so on.
D) 1.1, 1.2 and so on.

E) B) and C)
F) A) and B)

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Data flow diagram and flowchart comparison The systems flowchart below depicts a typical appointment process for Dr. M. Ali, an internal medicine specialist. In Dr. Ali's office, a nurse also functions as a receptionist. "Vital signs" include weight, temperature and blood pressure. The "chart" is the record of all a patient's visits to the doctor. Data flow diagram and flowchart comparison The systems flowchart below depicts a typical appointment process for Dr. M. Ali, an internal medicine specialist. In Dr. Ali's office, a nurse also functions as a receptionist. Vital signs include weight, temperature and blood pressure. The chart is the record of all a patient's visits to the doctor. Prepare a Level Zero data flow diagram for the same process Prepare a Level Zero data flow diagram for the same process

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Data flow diagrams:


A) Help users understand a system.
B) Are important forms of internal control in all accounting information systems.
C) Eliminate the need for data normalization.
D) Are more useful than flowcharts.

E) All of the above
F) B) and C)

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In a data flow diagram, lines:


A) Should not be labeled.
B) Should be labeled with verb phrases.
C) Should be labeled with noun phrases.
D) Should have arrows on both ends.

E) None of the above
F) All of the above

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Consider the partial data flow diagram below: Consider the partial data flow diagram below: Which of the following is most true? A) The database should not receive information from a process. B) The process is incorrectly labeled. C) The database should have a number. D) The diagram is not balanced. Which of the following is most true?


A) The database should not receive information from a process.
B) The process is incorrectly labeled.
C) The database should have a number.
D) The diagram is not balanced.

E) C) and D)
F) B) and C)

Correct Answer

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Which of the following is not an appropriate label for an arrow in a data flow diagram?


A) Customer information.
B) Credit decision.
C) Process application.
D) Inventory database.

E) B) and D)
F) B) and C)

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In a leveled set of data flow diagrams, which of the following shows the least detail?


A) Context.
B) Level zero.
C) Level one.
D) Primitive.

E) C) and D)
F) A) and C)

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-All of the following statements are true except: A) All applicants are entered in the contestant database. B) All contestants receive invitations. C) Contestants must provide their availability to be scheduled for an audition. D) Invitations cannot be sent by e-mail. -All of the following statements are true except:


A) All applicants are entered in the contestant database.
B) All contestants receive invitations.
C) Contestants must provide their availability to be scheduled for an audition.
D) Invitations cannot be sent by e-mail.

E) A) and B)
F) B) and C)

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A data flow diagram is most likely to reveal: (i) inadequate separation of duties, (ii) process inefficiencies.


A) i only.
B) ii only.
C) Both i and ii.
D) Neither i nor ii.

E) None of the above
F) All of the above

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Flowcharts are organized in _____, while DFDs are organized in _____.


A) Columns, leveled sets.
B) Columns, rows.
C) Rows, leveled sets.
D) Rows, columns.

E) B) and C)
F) A) and D)

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Explain three specific ways Paige could use the data flow diagram in her firm's accounting information system. Do not simply repeat the generic uses discussed in the text.

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Paige could make notes on the performanc...

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A Level Zero data flow diagram contains a rectangle labeled "vendor." Which of the following is most true?


A) The rectangle does not require a database table.
B) The rectangle indicates a database with a compound primary key.
C) The associated database requires a junction table.
D) The primary key for the indicated database may be a foreign key elsewhere.

E) None of the above
F) B) and D)

Correct Answer

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