30 Jan the external agents that
CIS321 Structured Analysis & Design
Week 3 Quiz
Question 1
(TCO 4) Which of the following types of questions should you ask on a questionnaire or interview?
Loaded questions
Biased questions
Leading questions
Open-ended questions
None of the above
Question 2
(TCO 4) Which of the following might happen if system requirements are incorrect?
The system may cost more than budgeted.
Users may refuse to use the system.
The system could have high downtime.
Both A and B
All of the above
Question 3
(TCO 4) A systematic sampling technique that attempts to reduce the variance of the estimates by spreading out the sampling or by avoiding very high or low estimates is
observation.
proxemics.
randomization.
stratification.
None of the above
Question 4
(TCO 5) A technique for organizing and documenting the structure and flow of data through a system’s processes and/or the logic, policies, and procedures to be implemented by a system’s processes is known as
data modeling.
process modeling.
context modeling.
operational modeling.
None of the above
Question 5
(TCO 5) A set of related and ongoing activities in a business is known as
a function.
a database.
a system.
an event.
None of the above
Question 6
(TCO 4) An Ishikawa diagram is also referred to as a(n)
cause-and-effect diagram.
data flow diagram.
fishbone diagram.
entity relationship diagram.
Both A and C
Question 7
(TCO 4) Sampling every 100th invoice would be an example of
randomization.
proxemics.
JRP.
stratification.
observation.
Question 8
(TCO 5) A logical unit of work that must be completed as a whole is known as
a function.
a data store.
an event.
a trigger.
None of the above
Question 9
(TCO 5) Data flows are
communications between two processes.
an input of data to a process or an output of data from a process.
representing the creation, reading, deletion, or updating of data in a database.
represented by a solid line with an arrow.
All of the above
Question 10
(TCO 5) A context data flow diagram shows all of the following EXCEPT
the external agents that communicate with the system.
the information that the external agents either send to or get from the system.
the processes that each external agent interfaces with.
the system as a single element.
All of the above are shown.
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