AP COMP SCI TEST
What is the binary RGB triplet for the color indigo?
(01001011, 00000000, 10000010)
Internet protocol version 4 (IPv4) represents each IP address as a 32-bit binary number. Which of the following best describes the result of using 128-bit addresses instead of 32-bit addresses?
2^56 as many addresses are available.
Consider the 4-bit binary numbers 0011, 0110, and 1111. Which of the following decimal values is NOT equal to one of these binary numbers?
9
Which of the following actions is most likely to raise legal or ethical concerns?
A musician creates a song using samples of a copyrighted work and then uses a Creative Commons license to publish the song.
A computer program uses 3 bits to represent integers. When the program adds the decimal (base 10) numbers 5 and 3, the result is 0. Which of the following is the best explanation for the result?
An overflow error occurred.
A certain programming language uses 4-bit binary sequences to represent nonnegative integers. Fore example, the binary sequence 0101 represents the corresponding decimal value 5. Using the programming language, a programmer attempt to add the decimal values 14 and 15 and assign the sum to the variable total. Which of the following best describes the result of this operation?
An overflow error will occur because 4 bits is not large enough to represent 25, the sum of 14 and 15.
Which of the following best describes the impact of Creative Commons?
Creative Commons gives creators of digital content the ability to indicate how their works can be legally used and distributed, enabling broad access to digital information.
Consider the following numerical values. Binary 1011 Binary 1101 Decimal 5 Decimal 12 Which of the following lists the values in order from least to greatest?
Decimal 5, binary 1011, decimal 12, binary 1101.
A computer program uses 4 bits to represent nonnegative integers. Which of the following statements describe a possible result when the program uses the number representation?
II only.
The author of an e-book publishes the e-book using a no-right reserved Creative Commons license. Which of the following best explains the consequences of publishing the book with this type of license?
Individuals can freely distribute or use the contents of the e-book without needing to obtain additional permissions from the author.
What ASCII character is represented by the binary (base 2) number 1001010 ?
J
Which of the following is considered an unethical use of computer resources?
Purchasing a single-user copy of photo editing software and installing it on all the computers in a computer lab
A program developed for a Web store represents customer account balances using a format that approximates real numbers. While testing the program, a software developer discovers that some values appear to be mathematically imprecise. Which of the following is most likely cause of the imprecision?
The account balances are represented using a fixed number of bits, resulting in round-off errors.
Which of the following is not an advantage of using open-source software?
The original developer of open-source software provides free of low-cost support for users installing and naming the software.
A computer program performs the operation 2 divided by 3 and represents the result as the value 0.6666667. Which of the following best explains this result?
The precision of the result is limited due to the constrains of using a floating-point representation.
A programmer created a piece of software and wants to publish it using a Creative Commons license. Which of the following is a direct benefit of publishing the software with the type of license?
The programmer can specify the ways that other people are legally allowed to use and distribute the software.
A binary number is to be transformed by appending three 0s to the end of the number. For example, 11101 is transformed to 11101000. Which of the following correctly describes the relationship between the transformed number and the original number?
The transformed number is 8 times the value of the original number.
A user ready reviews of a popular artist's new album and then downloads the album from the Web site of a licensed online music seller. Which of the following is LEAST likely to be a consequence of this action?
The user will be in violation of the Digital Millennium Copyright Act(DMCA)
A student purchases a single-user license of a copyrighted application and wants other students to be able to use it at the same time. Under which of the following conditions is it considered acceptable for the student to share the application?
When the student gets permission from the copyright owner of the application.