
AP CSP Binary Numbers (2.1)
Quiz
•
Computers
•
9th - 12th Grade
•
Practice Problem
•
Medium
Herman Galioulline
Used 106+ times
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5 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which of the following are true statements about the data that can be represented using binary sequences?
I. Binary sequences can be used to represent strings of characters.
II. Binary sequences can be used to represent colors.
III. Binary sequences can be used to represent audio recordings.
I only
I and II only
II and III only
I, II, and III
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
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?
3
6
9
15
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Consider the following numeric 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
Decimal 5, decimal 12, binary 1011, binary 1101
Decimal 5, binary 1011, binary 1101, decimal 12
Binary 1011, binary 1101, decimal 5, decimal 12
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A certain programming language uses 4-bit binary sequences to represent nonnegative integers. For example, the binary sequence 0101 represents the corresponding decimal value 5. Using this programming language, a programmer attempts 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?
The correct sum of 29 will be assigned to the variable total.
An overflow error will occur because 4 bits is not large enough to represent either of the values 14 or 15.
An overflow error will occur because 4 bits is not large enough to represent 29, the sum of 14 and 15.
A round-off error will occur because the decimal values 14 and 15 are represented as approximations due to the fixed number of bits used to represent numbers.
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A video game character can face toward one of four directions: north, south, east, and west. Each direction is stored in memory as a sequence of four bits. A new version of the game is created in which the character can face toward one of eight directions, adding northwest, northeast, southwest, and southeast to the original four possibilities. Which of the following statements is true about how the eight directions must be stored in memory?
Four bits are not enough to store the eight directions. Five bits are needed for the new version of the game.
Four bits are not enough to store the eight directions. Eight bits are needed for the new version of the game.
Four bits are not enough to store the eight directions. Sixteen bits are needed for the new version of the game.
Four bits are enough to store the eight directions.
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