Unit 3 Practice

A student is creating an application that allows customers to order food for delivery from a local restaurant. Which of the following is LEAST likely to be an input provided by a customer using the application?

• The address where the order should be delivered

• The cost of a food item currently available for order

• The credit card or payment information for the purchaser

• The name of a food item to be included in the delivery

A company that develops educational software wants to assemble a collaborative team of developers from a variety of professional and cultural backgrounds. Which of the following is NOT considered a benefit of assembling such a team?

• Collaboration that includes diverse backgrounds and perspectives can eliminate the need for software testing.

• Collaboration that includes diverse backgrounds and perspectives can help the team anticipate the needs of a variety of software users.

• Collaboration that includes diverse backgrounds and perspectives can help the team avoid bias.

• Collaboration that includes diverse backgrounds and perspectives can reflect the strengths of the individual team members.

Three students in different locations are collaborating on the development of an application. Which of the following strategies is LEAST likely to facilitate collaboration among the students?

• Having all three students participate in frequent video chat sessions to discuss ideas about the project and to provide feedback on work done so far

• Having all three students use an online shared folder to contribute and discuss components to be considered for use in the application

• Having all three students write code independently and then having one student combine the code into a program

• Having all three students work in a shared document that each can edit to provide comments on the work in progress

A company that develops mobile applications wants to involve users in the software development process. Which of the following best explains the benefit in having users participate?

• Users can identify and correct errors they encounter when using released versions of the software.

• Users can review the algorithms used in the software to help improve their efficiency.

• Users can provide documentation for program code at the end of the software development process.

• Users can provide feedback that can be used to incorporate a variety of perspectives into the software.

The variable age is to be used to represent a person’s age, in years. Which of the following is the most appropriate data type for age ?

• Boolean

• number

• string

• list

The variable isOpen is to be used to indicate whether or not a store is currently open. Which of the following is the most appropriate data type for isOpen ?

• Boolean

• number

• string

• list

A teacher is writing a code segment that will use variables to represent a student’s name and whether or not the student is currently absent. Which of the following variables are most appropriate for the code segment?

• A string variable named s and a Boolean variable named a

• A string variable named s and a numeric variable named n

• A string variable named studentName and a Boolean variable named isAbsent

• A string variable named studentName and a numeric variable named numAbsences

Which of the variables have the value 50 after executing the following code segment?

x ← 25

y ← 50

z ← 75

x ← y

y ← z

z ← x

• x

• y

• z

A user unintentionally installs keylogging software on a computer. Which of the following is an example of how the keylogging software can be used by an unauthorized individual to gain access to computing resources?

• The software gives an unauthorized individual remote access to the computer, allowing the individual to search the computer for personal information.

• The software installs a virus on the computer and prompts the user to make a payment to the unauthorized individual to remove the virus.

• The software prompts the user to enter personal information to verify the user’s identity. This personal information is recorded and transmitted to an unauthorized individual.

• The software records all user input on the computer. The recorded information is transmitted to an unauthorized individual, who analyzes it to determine the user’s login passwords.

An individual receives an e-mail that appears to be from an insurance company. The message offers a low insurance rate, and prompts the recipient to click a link to learn more. Which of the following is most indicative that the e-mail is part of a phishing attempt?

• After clicking the link, a browser cookie is downloaded to the recipient’s computer.

• After clicking the link, a Web page opens that prompts the recipient for personal information.

• After clicking the link, the recipient’s private network becomes publicly visible via a rogue access point.

• After clicking the link, software is installed on the recipient’s computer that records every keystroke made on the computer.