AP CS

Which of the following best describes a challenge involved in using a parallel computing solution

A parallel computing solution may not be appropriate for an algorithm in which each step requires the output from the preceding step.

Which of the following activities is most likely to be successful as a citizen science project?

Collecting pictures of plants from around the world that can be analyzed to look for regional differences in plant growth.

A digital photo file contains data representing the level of red, green, and blue for each pixel in the photo. The file also contains metadata that describes the date and geographic location where the photo was taken. For which of the following goals would analyzing the metadata be more appropriate than analyzing the data?

Determining the likelihood that the photo was taken at a particular public event

A programmer is writing a program that is intended to be able to process large amounts of data. Which of the following considerations is LEAST likely to affect the ability of the program to process larger data sets?

How many programming statements the program contains

A large data set contains information about all students majoring in computer science in colleges across the United States. The data set contains the following information about each student. The student's gender The state in which the student attends college The student's grade point average on a 4.0 scale Which of the following questions could be answered by analyzing only information in the data set?

How many states have higher percentage of female computer science majors than male computer science majors attending college in that state

Which of the following are true statements about how the Internet enables crowdsourcing? I. The Internet can provide crowdsourcing participants access to useful tools, information, and professional knowledge. II. The speed and reach of the Internet can lower geographic barriers, allowing individuals from different locations to contribute to projects. III. Using the Internet to distribute solutions across many users allows all computational problems to be solved in reasonable time, even for very large input sizes.

I and II only

Internet protocol version 6 (IPv6) has been introduced to replace the previous version (IPv4). Which of the following best describes a benefit of IPv6 over IPv4?

IPv6 allows for a greater number of addresses than IPv4, which allows more devices to be connected to the Internet.

Which of the following best describes one of the benefits of using an iterative and incremental process of program development?

It helps programmers identify errors as components are added to a working program.

Many Web browsers allow users to open anonymous windows. During a browsing session in an anonymous window, the browser does not record a browsing history or a list of downloaded files. When the anonymous window is exited, cookies created during the session are deleted. Which of the following statements about browsing sessions in an anonymous window is true?

Items placed in a Web store's shopping cart for future purchase during the anonymous browsing session will not be saved on the user's computer.

Which of the following best describes the ability of parallel computing solutions to improve efficiency

The efficiency of a solution that can be broken down into parallel portions is still limited by a sequential portion.

A certain social media Web site allows users to post messages and to comment on other messages that have been posted. When a user posts a message, the message itself is considered data. In addition to the data, the site stores the following metadata. The time the message was posted The name of the user who posted the message The names of any users who comment on the message and the times the comments were made For which of the following goals would it be more useful to analyze the data instead of the metadata?

To determine the topics that many users are posting about

According to the domain name system (DNS), which of the following is a subdomain of the domain example.com?

about.example.com