AP CSP Fall Final Review

Which of these lists correctly orders the binary numbers from smallest to largest?

• 
  1010, 0101, 0110, 0011

• 0011, 0101, 0110, 1010

• 1010, 0110, 0101, 0011

• 
  0011, 0110, 0101, 1010

Your programmer friend told you that they just turned 11110 years old, in binary.

How old are they in decimal?

• 63

• 29

• 32

• 30

When the decimal (base 10) number is and odd umber, what is the value of the last bit of binary (base 2) number?

(a)  

How many bits are there in 1 byte

• 5

• 9

• 8

• 1

2 MOD 5 = ?

(a)  

What does the following code segment return?

• 1. The number of even items in list

• 1. The number of items in list

• 1. Nothing the code causes a runtime error

• 1. The number of odd items in list

ASCII is a character-encoding scheme that uses 7 bits to represent each character. The decimal (base 10) values 65 through 90 represent the capital letter A through Z. what ASCII character is represented by the binary (base 2) number 1001111?

• J

• K

• L

• O

A teacher develops an algorithm to calculate the average of a set of test scores from a list.

listOfScores refers to a list of scores the algorithm needs to average.

• 1. The algorithm would correctly calculate the average of two scores

• 1. The algorithm would NOT correctly calculate the average of two scores

• 1. The algorithm would correctly calculate the average of three scores

• 1. The algorithm would NOT correctly calculate the average of three scores

Which of the following helps to define computer science?

• 1. Computational thinking practices

• 1. Computer programming

• 1. Social impact on society

• 1. Problem solving

• 1. All of the above

Which one explains the difference between iteration sequencing and selection?

• Sequencing is the sequential execution of operations, selection is the decision to execute one operation versus another operation (like a fork in the road), and iteration is repeating the same operations a certain number of times or until something is true.

• Selection is the sequential execution of operations, selection is the decision to execute one operation versus another operation (like a fork in the road), and selection is repeating the same operations a certain number of times or until something is true.

• They do not have difference.

• Sequencing can make an error while selection NEVER makes an error.