APCSP Review 2

What is the RGB value of red?

• (255,0,0)

• (0,255,0)

• (0,0,255)

• (255,255,0)

A program is expressed in a programming language. Which of the following is true of the program?

• The program can only be expressed in binary code.

• The program is always more efficient in binary than in a higher-level language.

• The program can also be expressed as binary code, but will be more easily understood by humans when expressed in a higher-level programming language.

• The program must be written in a low-level programming language to function.

What is the decimal equivalent of 11010011?

• 211

• 199

• 225

• 207

According to Moore’s Law, increases in technological performance should approximately double every year? If this holds true, how much can performance be expected to increase over 5 years?

• 16 times as much

• 32 times as much

• 64 times as much

• 8 times as much

Select the answer that lists the units of bytes in ascending order (from smallest to largest): Kilobyte, gigabyte, terabyte

• Kilobyte, megabyte, gigabyte

• Kilobyte, gigabyte, terabyte

• Gigabyte, terabyte, kilobyte

• Terabyte, gigabyte, kilobyte

Consider the following numbers. Binary 1100, Decimal 11, and Hexadecimal D. Which of the following lists the numbers in order from least to greatest?

• Binary 1100, Decimal 11, Hexadecimal D

• Decimal 11, Binary 1100, Hexadecimal D

• Decimal 11, Hexadecimal D, Binary 1100

• Hexadecimal D, Decimal 11, Binary 1100

Which of the following encoded ciphertext strings decodes to an original plaintext message of “secret”?

• ersecr

• wigvix

• kwujwl

• oaynap

Approximately how much bigger (how many more bytes) is a megabyte than a kilobyte?

• 500 times bigger

• 1,000 times bigger

• 2,000 times bigger

• 10,000 times bigger

Which of the following would pose the greatest threat to a user’s personal privacy if it were to be leaked to the public?

• The IP address of the user’s computer

• The user’s browser cookies

• The user’s email address

• The user’s private key used for encryption

How many different digits are used in the Hexadecimal number system?

• 10

• 12

• 16

• 14