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WorksheetsCSF U4 Data p1
Total questions: 13
Worksheet time: 10mins
Overflow errors can be avoided completely with a long enough binary number?
TRUE
FALSE
The range of an unsigned 8 bit binary number is
0-128
1-127
0-255
0-256
Given an 8 bit binary number where 5 bits represent the whole number and 3 bits represent the fraction. What would 01100110 be in decimal?
25.25
12.5
25.5
12.75
Rounding errors...
Only happen in binary number systems
Happen when we try to represent a number that is too precise
Can generally be made better by adding more fractional bits
Happen when we try to represent a number that is too large
How would you represent the decimal number -20 using an 8 bit binary number with a sign bit?
(a)
Two's complement is used to represent negative numbers instead of a sign bit because?
It is easier for humans to read
There is only one representation for zero
Subtraction can be simply computed
The entire range capacity of the number can be used
Convert the two's complement binary number 11110101 to decimal.
12
-11
-20
-15
The range of a 8 bit twos complement number is...
-128 to 128
0 to 255
-127 to 128
-128 to 127
How many bits are required to represent the entire ASCII character set?
6
7
8
9
If the ASCII code for the letter P is hex 50 what would the the letter N be in hex?
49
48
4F
4E
Which is true regarding Unicode?
It is a larger character set than ASCII
It represents characters in almost all languages
It shares the same character codes as ASCII
It can be used to represent Emoji characters
UTF-8 is...
An encoding scheme for Unicode
Used only for ASCII characters
A variable length encoding scheme
Is backwardly compatible with ASCII
Given the following UTF-8 binary, how many characters are represented?
1
2
3
4
5
