Class Activity: Practice AP Problems, Friday, May 3

A media librarian at a movie studio is planning to save digital video files for archival purposes. The movie studio would like to be able to access full-quality videos if they are needed for future projects. Which of the following actions is LEAST likely to support the studio's goal?

• Using video file formats that conform to published standards and are supported across many different devices

• Using lossy compression software to reduce the size requirements of the data being stored

• Using storage media that can be expanded for additional data capacity

• Using a system that incorporates redundancy to handle disk failure.

Which of the following statements accurately describe the hierarchy of Web pages example.org and about.example.org?

Select the two BEST answers.

• The Web page about.example.org is a subdomain of about.org.

• The Web page about.example.org is a subdomain of example.org.

• The Web page example.org is a domain under the top-level domain .org.

• The Web page example.org is a domain under the top-level domain example.

Which of the following are ways in which a programmer can use abstraction to manage the complexity of a program?

Select the two BEST answers.

• Replacing each instance of repeated code with a call to a procedure.

• Replacing longer variable names with shorter variable names to reduce typing errors.

• Replacing several lines of documentation with a single line of documentation.

• Replacing the string variables name1, name2, name3, and name4 with a list of strings called names

• The schools can create a single list of student names, sorted by last name.

• The schools can determine the average number of days students are absent.

• The schools can determine which ZIP code is represented by the most students.

• The schools can determine the student ID of the student with the greatest number of absences.

A free online encyclopedia contains articles that can be written and edited by any user. Which of the following are advantages the online encyclopedia has over a traditional paper-based encyclopedia?

Select the two BEST answers.

• The ability to easily check that the encyclopedia is free of copyrighted content

• The ability to ensure that encyclopedia content is the same every time it is accessed

• The ability to have a larger number of perspectives reflected in the encyclopedia content

• The ability to quickly update encyclopedia content as new information becomes available

Which of the following statements describe how cloud computing has affected Internet communication?

Select the BEST two answers.

• Cloud computing has eliminated the need to provide redundancy in Internet routing.

• Cloud computing has helped enhance collaboration.

• Cloud computing has introduced new data-security concerns.

• Cloud computing has reduced concerns about intellectual property rights.

Which of the following are benefits of using well-named variables in a computer program?

Select the two BEST answers.

• The program will run faster.

• The program will be easier for people to read.

• The program will have a greater data storage capacity.

• The program will be easier to modify in the future.

Researchers have developed a simulation of packets traveling between server computers and client computers in a network. Of the following, which two outcomes are most likely to be results of the simulation?

Select the two BEST answers.

• Better understanding of the effect of temporarily unavailable network connections

• Better understanding of the effect of using hexadecimal representations for binary data

• Better understanding of the impact of access to public data in identifying solutions to problems

• Better understanding of the impact of increased connection speeds for frequently visited servers

Which of the following Boolean expressions are equivalent to the expression num >= 15?

Select the two BEST answers.

• (num > 15) AND (num = 15)

• (num > 15) OR (num = 15)

• NOT (num < 15)

• NOT (num < 16)

Which of the following can be represented by a single binary digit?

Select the two BEST answers.

• The position of the minute hand of a clock

• The remainder when dividing a whole number by 2

• The value of a Boolean variable

• The volume of a car radio