AP CSP - Units 1-5 Review

Which of the following best describes how computing devices represent information?

• Represents info as bits or bytes but not both

• Represents data as a byte which is either a 0 or a 1

• Represents data as bits which is either a 0 or a 1

• Represents info as bits which contain 8 bytes

Which of the following is true of how computers represent numbers?

• With a fixed number of bits some numbers are too large to represent in a computer which will lead to overflow errors.

• Using a fixed but large number of bits can eliminate the possibility of round off error when representing numbers in binary

How many total numbers can be represented with an 8-bit binary (base-2) system?

• 256

• 255

• 158

• 250

Which of the following is true of intellectual property?

• CC has severely hindered broad and open access to digital information

• CC enables content creators to freely distribute their otherwise copyrighted work.

Which of the following is true of how the Internet has responded to the increasing number of devices now using the network?

• Protocols are not necessary thanks to the large number of devices now connected to the network

• Protocols were designed to scale as new devices are added

Which of the following best describes the purpose of an IP address?

• A unique number for identifying devices that send and receive information on the Internet

• Assist in the reconstruction of a message that has been divided into many packets

Which of the following Internet protocols is used to request and send pages and files on the World Wide Web?

• TCP

• UDP

• IP

• HTTP

What will the "background-color" of the "topButton" be when the program is finished running?

• RED

• BLUE

• GREEN

• ORANGE

What number will be output by the console.log command on line 5?

• 25

• 10

• 35

• 15

What will be displayed in the console when this program runs?

var numList = [10,20,30];

console.log(numList[numList.length-1]);

• 30

• 20

• 10

• 2