Numeral Systems

Q1: Select most important numeral systems in IT:

binary
pentagon
hexagonal
decimal
hexadecimal
Good answeres: 3

Q2: What is a binary number?

a number 2 (two)
a number expressed in base-2 numeral system made up of 0 and 1
It's number 0 or 1
a number with two decimal places
Good answeres: 1

Q3: Select binary numbers:

101
2
-1101
12
3.14
1.001
Good answeres: 3

Q4: What is a hexadecimal numeral system?

a numeral system made up of 16 symbols
a number containing 6 characters
Number with 16 decimals
Good answeres: 1

Q5: What symbols are used in hexadecimal numbers?

Number 1-16
Numbers 0-9 and letters A-F
Letters from A to P (16th letter in alphabet)
Good answeres: 1

Q6: Select hexadecimal numbers:

FACE
123
HEX
P12
BB8
C3PO
Good answeres: 3

Q7: Select hexadecimal numbers:

1F0
T800
-A05
-G16
4.3K
5A.4B
Good answeres: 3

Q8: What is the RADIX or BASE for decimal numbers?

1
2
10
16
Good answeres: 1

Q9: Interpretation of decimal number 129 using radix is:

1×10²+2×10¹+9*10⁰
1 × 100 + 2 × 10 + 9 × 1
12×10+9
100+29
Good answeres: 1

Q10: Interpretation of hexadecimal number 2AC using radix is:

2×16²+10×16¹+12*16⁰
2×10²+10×10¹+12*10⁰
2+10+12
Good answeres: 1

Q11: Interpretation of binary number 101 using radix is:

1×2²+0×2¹+1*2⁰
1×10²+0×10¹+1*10⁰
100+1
Good answeres: 1

Q12: E_hex =

14_dec
10_dec
1110_bin
11_bin
Good answeres: 2

Q13: 15_dec =

F_hex
10_hex
1111_bin
11_bin
Good answeres: 2

Q14: Select largest number:

10_hex
10_dec
10_bin
Good answeres: 1

Q15: Select smaller nubmer:

100_hex
100_dec
100_bin
Good answeres: 1

Q16: 1101_bin =

1101_dec
13_dec
D_hex
13_hex
Good answeres: 2

Q17: Select largest number:

12.5_dec
111.01_bin
A.FF0_hex
Good answeres: 1

Q18: Select smaller nubmer:

-32_dec
-100_bin
-30.F_hex
Good answeres: 1

Q19: Select numbers bigger than 64_dec

-65_dec
1111_bin
111111_bin
1000001_bin
60_hex
Good answeres: 2

Q20: 100_hex =

64_dec
256_dec
11111111_bin
100000000_bin
111111111_bin
Good answeres: 2