A symbol used in data flow diagrams to depict an

13. 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.
14. Which of the following symbols is represented by two parallel lines?

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15. Those entities which perform no information processing activities are called:
16. Which one of the following is NOT one of the four types of file processing:
17. How many 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.
18. The flow of processes on a system flowchart is from:
19. One of the most important activities performed by corporate accountants relate too:
20. Related records grouped together form a(n):
21. In relational database theory, which of the following are the two rules of integrity?
a. Referential Integrity and Null Integrity.
b. Null Integrity and Entity Integrity.
c. Referential Integrity and Parent-Child Integrity.
d. Referential Integrity and Entity Integrity.
22. Which of the following contains information about the structure of the database, including a
description of each data element stored in the database?

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23. All of the information about a particular student (name, major, course, etc) is stored in which of
the following?
24. Which of the following is a primary activity in the value chain?