A key advantage of developing a computer application by using the prototyping approach is that it:

• A.Allows applications to be portable across multiple system platforms.
• B.Is less expensive since it is self-documenting.
• C.Better involves users in the design process.
• D.Does not require testing for user acceptance.

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Which of the following information security controls has the primary function of preventing unauthorized outside users from accessing an organization's data through the organization's network?

• A.Biometrics.
• B.Firewall.
• C.Antivirus.
• D.Encryption.

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An internationally recognized brand name is an entrance barrier to new competitors because new competitors would:

• A.Have to initiate a price war in order to enter the industry.
• B.Face higher learning costs, which would increase fixed costs.
• C.Face increased production costs.
• D.Face increased marketing costs.

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Which of the following statements is true regarding user developed applications (UDAs) and traditional IT applications?

• A.IT testing personnel usually review both types of applications thoroughly to ensure they were developed properly.
• B.UDAs arid traditional JT applications typically follow a similar development life cycle
• C.A UDA usually includes system documentation to illustrate its functions, and IT-developed applications typically do not require such documentation.
• D.Unlike traditional IT applications. UDAs typically are developed with little consideration of controls.

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When using cost-volume-profit analysts which of the following will increase operating income once !he break-even point has been reached?

• A.Fixed costs per unit for each additional unit sold
• B.Contribution margin per unit for each additional unit sold
• C.Variable costs per unit for each additional unit sold
• D.Gross margin per unit for each additional unit sold

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