Number system in computer - take the quiz

What is the binary representation of the decimal number 10?
1010
1100
1001
1110
2. Which of the following is a base-16 number system?
Binary
Octal
Decimal
Hexadecimal
What is the octal representation of the decimal number 25?
31
35
27
41
4. Convert the binary number 1101 to decimal.
11
13
15
17
5. Which of the following is not a valid hexadecimal digit?
A
B
G
F
What is the decimal equivalent of the octal number 56?
36
46
48
38
7. Which of the following is a base-10 number system?
Binary
Octal
Decimal
Hexadecimal
Convert the decimal number 42 to binary.
101010
101100
100101
110011
What is the hexadecimal representation of the decimal number 255?
FF
EE
DD
CC
Which of the following is not a valid octal digit?
7
8
5
3
What is the binary equivalent of the octal number 67?
110111
101111
111101
110101
Convert the decimal number 18 to octal.
22
26
20
24
13. What is the decimal equivalent of the hexadecimal number A3?
161
163
165
167
Which of the following is a base-8 number system?
Binary
Octal
Decimal
Hexadecimal
Convert the binary number 101010 to decimal.
42
44
46
48
16. What is the octal representation of the decimal number 63?
77
75
71
77
17. Which of the following is not a valid hexadecimal digit?
C
D
G
E
What is the decimal equivalent of the octal number 34?
24
28
30
32
19. Which of the following is a base-2 number system?
Binary
Octal
Decimal
Hexadecimal
Convert the decimal number 55 to binary.
110111
110101
111011
110111
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