AP CSP Unit 3

The upgraded system uses a directory containing additional information not supplied by the customer. The directory is used to help direct calls effectively. Which of the following is LEAST likely to be included in the directory?

A list of computers the company owns and the computers' corresponding IP addresses

Which of the following is NOT a benefit of collaborating to develop a computing innovation?

Collaboration eliminates the need to resolve differences of opinion.

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.

Debugging

Finding and fixing problems in an algorithm or program.

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 write code independently and then having one student combine the code into a program

DineOutHelper is a mobile application that people can use to select a restaurant for a group meal. Each user creates a profile with a unique username and a list of food allergies or dietary restrictions. Each user can then build a contact list of other users of the app. A user who is organizing a meal with a group selects all the members of the group from the user's contact list. The application then recommends one or more nearby restaurants based on whether the restaurant can accommodate all of the group members' allergies and dietary restrictions. Suppose that Alejandra is using DineOutHelper to organize a meal with Brandon and Cynthia. Which of the following data are needed for DineOutHelper to recommend a restaurant for the group? I. Each group member's list of food allergies or dietary restrictions II. Alejandra's geographic location III. The usernames of the people on Brandon and Cynthia's contact lists

I and II only

To direct a call to the appropriate destination, which of the following input data is needed by the upgraded system that was NOT needed by the original system? I. Audio signal of the customer's voice II. The customer's keypad selection III. The customer's phone number

I only

Which of the following actions are generally helpful in program development? I. Consulting potential users of the program to identify their concerns II. Writing and testing small code segments before adding them to the program III. Collaborating with other individuals when developing a large program

I, II, and III

DineOutHelper is a mobile application that people can use to select a restaurant for a group meal. Each user creates a profile with a unique username and a list of food allergies or dietary restrictions. Each user can then build a contact list of other users of the app. A user who is organizing a meal with a group selects all the members of the group from the user's contact list. The application then recommends one or more nearby restaurants based on whether the restaurant can accommodate all of the group members' allergies and dietary restrictions. Suppose that Alejandra is using DineOutHelper to organize a meal with Brandon and Cynthia. Which of the following data is not provided by Alejandra but is necessary for DineOutHelper to recommend a restaurant for the group? I. Brandon's contact list II. Information about which restaurants Brandon and Cynthia have visited in the past III. Information about which food allergies and dietary restrictions can be accommodated at different restaurants near Alejandra

III only

Which of the following is a true statement about program documentation?

Program documentation is useful during initial program development and also when modifications are made to existing programs.

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 cost of a food item currently available for order

RunRoutr is a fitness tracking application for smartphones that creates suggested running routes so that users can run with each other. Upon downloading the application, each user creates a username, a personal profile, and a contact list of friends who also use the application. The application uses the smartphone's GPS unit to track a user's location, running speed, and distance traveled. Users can use the application to review information and statistics about their previous runs. At the beginning of a run, users indicate the distance they want to run from their current location, and the application suggests a running route. Once a user accepts a suggested route, the application shares the suggested route with other compatible users in the area so that they can run together. Users are considered compatible if they are on each other's contact lists or if they typically run at similar speeds. A basic RunRoutr account is free, but it displays advertisements that are targeted to individual users based on data collected by the application. For example, if a user's running route begins or ends near a particular store, the application may display an advertisement for that store. Users have the ability to pay a monthly fee for a premium account, which removes advertisements from the application. Adrianna uses RunRoutr to suggest a running route. All compatible users near Adrianna receive a notification that shows her running route. Which of the following data is not obtained using data collected from Adrianna's smartphone but necessary for RunRoutr to share Adrianna's running route?

The current locations of other RunRoutr users

RunRoutr is a fitness tracking application for smartphones that creates suggested running routes so that users can run with each other. Upon downloading the application, each user creates a username, a personal profile, and a contact list of friends who also use the application. The application uses the smartphone's GPS unit to track a user's location, running speed, and distance traveled. Users can use the application to review information and statistics about their previous runs. At the beginning of a run, users indicate the distance they want to run from their current location, and the application suggests a running route. Once a user accepts a suggested route, the application shares the suggested route with other compatible users in the area so that they can run together. Users are considered compatible if they are on each other's contact lists or if they typically run at similar speeds. A basic RunRoutr account is free, but it displays advertisements that are targeted to individual users based on data collected by the application. For example, if a user's running route begins or ends near a particular store, the application may display an advertisement for that store. Users have the ability to pay a monthly fee for a premium account, which removes advertisements from the application. Which of the following data must be collected from a user's smartphone in order for RunRoutr to suggest a running route?

The user's geographic position

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

Pair Programming

a collaborative programming style in which two programmers switch between the roles of writing code and tracking or planning high level progress

Program

a collection of program statements. Programs run (or "execute") one command at a time.

Program Statement

a command or instruction. Sometimes also referred to as a code statement.

Documentation

a written description of how a command or piece of code works or was developed.

Output

any data that are sent from a program to a device. Can come in a variety of forms, such as tactile interaction, audio, visuals, or text.

Event

associated with an action and supplies input data to a program. Can be generated when a key is pressed, a mouse is clicked, a program is started, or by any other defined action that affects the flow of execution.

Input

data that are sent to a computer for processing by a program. Can come in a variety of forms, such as tactile interaction, audio, visuals, or text.

Comment

form of program documentation written into the program to be read by people and which do not affect how a program runs.

Sequential Programming

program statements run in order, from top to bottom.

Event Driven Programming

some program statements run when triggered by an event, like a mouse click or a key press

User Interface

the inputs and outputs that allow a user to interact with a piece of software. User interfaces can include a variety of forms such as buttons, menus, images, text, and graphics.

Development process

the steps or phases used to create a piece of software. Typical phases include investigating, designing, prototyping, and testing