CIT 201

If A = {1,2,3} and B = {2,3,4}, what is A∪B?

• {2,3}

• {1,2,3}

• {1,2,3,4}

• {4}

What is the cardinality of the power set of {a,b,c}?

• 3

• 6

• 8

• 16

Which of the following is not a property of equivalence relations?

• Reflexive

• Symmetric

• Antisymmetric

• Transitive

If f (x) = 2x + 1, what is f − 1 (y)?

• (y−1)/2

• 2y+1

• y−1

• 2x−1

What is the result of A∖B if A = {1,2,3} and B = {2,4}?

• {1,3}

• {2,4}

• {1,2}

• {4}

Convert the binary number 1101 into decimal.

• 13

• 14

• 15

• 16

Which of the following is equivalent to 11012 + 10112?

• 10110

• 10101

• 11000

• 10001

What is the hexadecimal equivalent of 1111101?

• 7D

• 5F

• 3E

• 1A

Which number system is base-8?

• Binary

• Octal

• Decimal

• Hexadecimal

What is the 2’s complement of 1011?

• 0101

• 1101

• 0011

• 1010