2025 AP2 Recap Quiz

Luke is working on a computer project and needs to convert the decimal number 255 to its hexadecimal equivalent for a color code. What is the hexadecimal equivalent of the decimal number 255?

• FF

• 100

• 1F

• 10F

Oliver and Fin are working on a computer science project. They need to convert the binary number 1010 to hexadecimal for their assignment. What is the hexadecimal equivalent of the binary number 1010?

• A

• B

• C

• D

Sam and Charlie are working on a computer science project. They need to convert the binary number 1111 0000 into its hexadecimal representation for their assignment. What is the hexadecimal representation of the binary number 1111 0000?

• F0

• 0F

• FF

Gus and Charlie are learning about colors in their computer science class. They are asked to identify which of the following is not a valid hexadecimal digit used in color codes.

• G

• A

• 9

• F

James is working on a computer science project where he needs to convert the hexadecimal number 1A3 to a decimal number. What is the decimal equivalent of 1A3?

• 419

• 420

• 4190

• 4200

Michael and Lewis are working on a project where they need to ensure the integrity of data being transmitted over a network. What technique can they use to check for errors in data transmission?

• To check for errors in data transmission

• To increase data transmission speed

• To encrypt data

• To compress data

Fin and Lewis are working on a project involving data transmission. They need to ensure that the data is transmitted correctly using even parity. For the binary number 1010110, what would be the parity bit they should use?

• 0

• 1

• 2

• 3

Oliver and Charlie are working on a project where they need to ensure data integrity during transmission. They decide to add a bit to their data packets to make the number of 1s even. What type of parity are they using?

• Even parity

• Odd parity

• No parity

• Double parity

Matthew is checking a data packet that uses odd parity. If the binary value of the packet is 11010101, what should be the parity bit?

• 0

• 1

• 2

• 3

Megan and Oliver are working on a project to ensure data integrity during transmission. They decide to use parity bits for error detection. What is the main disadvantage of using parity bits in their project?

• They cannot detect all types of errors

• They slow down data transmission

• They are expensive to implement

• They require complex algorithms